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Yamaha · Two-stroke single, premix, chain drive

YZ 65

Library entry covers 2020-2025

55 factory 50 guideline

Published source

Yamaha YZ65 Owner's Manual, Periodic maintenance and lubrication chart pp.7-2 to 7-5 (ManualsLib 1863473)

Factory source. Covers Yamaha YZ65 owner's manual (English/French/German edition on ManualsLib; no model year seen in the pages read).

105 items for a 2023 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Two-stroke
Engine lubrication: Two-stroke premix (oil in fuel)
Oil filtration: None (no filter)
Valve gear: None (two-stroke porting)
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Single carburetor
Cooling: Liquid cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Separate gearbox oil
Clutch control: Hand lever, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2023 Yamaha YZ 65

On the road: every 200 km

1 item

Check two-stroke oil tank / carry premix oil

Pre-ride / on the road

Guideline

Running a two-stroke out of oil seizes it. Injection bikes: check the tank. Premix: carry oil and a measure.

On the road: every 500 km

3 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Guideline

Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 800 km

1 item

Check coolant level

Pre-ride / on the road

Guideline

On the road: every 1,000 km

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 km or 12 months

1 item

Replace spark plugs (two-stroke)

Engine

Guideline

Every 5,000 km or 12 months

10 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean fuel tap filter / sediment bowl

Fuel and air

Guideline
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.
Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 5,000 km or 2 years

1 item

Decarbonize exhaust ports, pipes and baffles

Engine

Guideline

Two-strokes coke up the exhaust port and muffler baffles; power falls off gradually.

Every 6,500 km or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 9,500 km or 12 months

8 items

Inspect coolant hoses and clamps

Engine

Guideline
Clean / inspect air filter

Fuel and air

Guideline

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.
Clean carburetor float bowl(s), check float level and jets

Fuel and air

Guideline

Ethanol fuel varnishes old carbs quickly in storage.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 16,000 km or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change gearbox oil

Primary and gearbox

Guideline

Every 19,500 km or 2 years

3 items

Replace air filter element

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 24,000 km or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 29,000 km

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 32,000 km or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 12 months

1 item

Brake fluid (replace)

Brakes

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every year. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.

Every 2 years

6 items

Coolant (change)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every 2 years. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Replace coolant

Engine

Guideline
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Brake master cylinder and caliper internal components (replace) and brake fluid (change)

Brakes

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every two years. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Replace brake fluid

Brakes

Guideline

Every 4 years

4 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Brake hoses (replace)

Brakes

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every four years and if cracked or damaged. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

1 item

Replace tires on age (regardless of tread)

Wheels and tires

Guideline

No interval set

51 items

Chassis fittings and fasteners (check, tighten)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Cooling system: coolant level, leaks, hoses (check)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Cylinder (check score marks and wear; clean)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Cylinder (replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Cylinder head gasket (replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Exhaust system (clean)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every fifth race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Kickstarter idle gear (check; replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Piston (replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every fifth race; as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Piston pin and small end bearing (check)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Piston pin and small end bearing (replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Piston rings (check end gap and damage)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Piston rings (replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every third race; as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Radiator cap spring operation (check)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Rear suspension (check, tighten; lubricate with molybdenum disulfide grease)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Spark plug (check condition; clean and regap)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Spark plug (replace)

Engine

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Air filter element (clean)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Air filter element (replace)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Carburetor (check settings and obstructions; adjust and clean)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Crankshaft (check carbon and damage; clean)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every fifth race; as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Cylinder head (check carbon, gasket; tighten bolts; clean)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Exhaust pipe and muffler (check carbon deposits)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Fuel line (clean and check for leakage)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every third race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Piston (check carbon, cracks, damage; clean)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
YPVS power valve (check carbon, cracks, damage; clean)

Fuel and air

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Clutch (adjust; replace)

Primary and gearbox

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Clutch housing, friction and clutch plates, springs (check)

Primary and gearbox

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Transmission (check; replace bearings)

Primary and gearbox

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Transmission oil (change)

Primary and gearbox

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every fifth race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Drive chain (check slack, alignment, condition; adjust and lubricate)

Final drive

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Drive chain (replace)

Final drive

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Drive chain roller and support guide (check wear; replace)

Final drive

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Front fork (check operation and leaks; adjust; clean dust seal and grease)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Front fork oil (replace)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every fifth race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Front fork oil seals and protector seal (replace)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Shift forks, guide bars, shift cam (check wear; replace)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Steering head (check operation and free play; tighten)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Steering head (clean and lubricate with lithium-soap grease)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every fifth race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Steering head bearings (replace)

Front end

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Frame (clean and check for damage)

Rear suspension and frame

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Shock absorber assembly (check operation, adjust, tighten)

Rear suspension and frame

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Shock absorber assembly (lubricate with lithium-soap grease)

Rear suspension and frame

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every third race; as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Swingarm pivot bearings (check looseness; lubricate)

Rear suspension and frame

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Brake pads (replace)

Brakes

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Brakes: lever position and pedal height, pivot lubrication, disk surface, fluid level, bolts (check, adjust, tighten)

Brakes

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Rotor nut, flywheel magneto (tighten)

Wheels and tires

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every fifth race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Tires and wheels: pressure, runout, spokes, wear; sprocket bolts (check, tighten)

Wheels and tires

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Wheel bearings (check looseness; lubricate)

Wheels and tires

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): every third race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Wheel bearings (replace)

Wheels and tires

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): as required. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Moving parts and cables (lubricate; check operation)

Controls and cables

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.
Throttle grip free play (check, adjust; lubricate cable and housing)

Controls and cables

Factory

Factory: Periodic maintenance and lubrication chart (Yamaha YZ65 owner's manual, English/French/German, printed pp.7-2 to 7-5, ManualsLib viewer pp.52-55): after break-in and every race. Columns as printed: after break-in; every race; every third race; every fifth race; as required. Items marked * should be performed by a Yamaha dealer. Weather, terrain and usage alter the required intervals. No race length in hours is given in the pages read. No model year seen in the pages read.

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.