Yamaha · Overhead-cam four-stroke single, wet sump, separate gearbox oil, CVT belt drive

Tricity (125 cc)

Library entry covers 2014-2024

36 factory 30 guideline

Published source

Yamaha MWS125-C Tricity 125 2024 Owner's Manual BCS-F8199-E2 (UK, English), periodic maintenance charts pp.9-3 to 9-7

Factory owner's handbook. Covers MWS125-C Tricity 125; 2024 UK owner's manual BCS-F8199-E2, English. Chart columns 1000/4000/8000/12000/16000 km (600/2400/4800/7200/9600 mi) plus annual check; from 20000 km (12000 mi) repeat the intervals starting from 4000 km (2400 mi); annual checks every year unless a kilometer-based (UK: mileage-based) maintenance is performed instead. Engine oil and V-belt are indicator-based (no fixed distance printed).

Open the source

66 items for a 2019 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: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, screw/locknut adjusters
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Fuel injection
Cooling: Liquid cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Separate gearbox oil
Clutch control: Automatic or semi-automatic
Final drive: Belt CVT, scooter automatic
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

2019 Yamaha Tricity (125 cc)

On the road: every 200 mi

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 300 mi

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline

On the road: every 500 mi

1 item

Check coolant level

Pre-ride / on the road

Guideline

Every 2,400 mi or 12 months

15 items

Chassis fasteners (make sure all nuts, bolts and screws are properly tightened)

Engine

Factory

Factory: Marked 4000-16000 km; annual check; dealer item (p.9-5)
Diagnostic system check (dynamic inspection with Yamaha diagnostic tool, check error codes)

Engine

Factory

Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-4)
Lights, signals and switches (check operation, adjust headlight beam)

Engine

Factory

Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-7)
Check throttle cable(s) free play and return

Fuel and air

Factory

Manual: Throttle grip housing and cable (check operation and free play, adjust cable free play, lubricate grip housing and cable). Factory: Marked 4000-16000 km; not at initial; annual check; dealer item (p.9-7)
Fuel injection (check engine idle speed)

Fuel and air

Factory

Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-3)
Replace fuel lines

Fuel and air

Factory

Manual: Fuel line (check fuel hoses for cracks or damage, replace if necessary). Factory: Marked 4000-16000 km (2400-9600 mi); not at 1000 km initial; annual check; dealer item (p.9-3)
V-belt case air filter element (clean, replace if necessary)

Fuel and air

Factory

Factory: Marked 4000-16000 km; annual check; dealer item; more often in rain or dusty areas per TIP (p.9-4, 9-7)
Grease and check center / side stand and springs

Rear suspension and frame

Factory

Manual: Sidestand, centerstand (check operation, lubricate with lithium-soap-based grease). Factory: Marked 4000-16000 km; annual check; not a dealer item (p.9-5)
Sidestand switch (check operation and replace if necessary)

Rear suspension and frame

Factory

Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-6)
Check brake pads and discs

Brakes

Factory

Manual: Front brake (check operation, fluid level and fluid leakage; replace brake pads if necessary). Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-4)
Front and rear brake lever pivot shaft (lubricate with silicone grease)

Brakes

Factory

Factory: Marked 4000-16000 km; annual check; not a dealer item (p.9-5)
Front and rear brake switches (check operation)

Brakes

Factory

Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-6)
Rear brake (check operation, fluid level and fluid leakage; check brake lever free play and adjust; replace brake pads if necessary)

Brakes

Factory

Factory: Every column incl. 1000 km (600 mi) initial; annual check; dealer item (p.9-4)
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Tires (check tread depth and for damage, replace if necessary, check and correct air pressure). Factory: Marked 4000-16000 km; annual check; dealer item (p.9-5)
Lubricate control cables and lever pivots

Controls and cables

Factory

Manual: Moving parts and cables (lubricate). Factory: Marked 4000-16000 km; annual check; dealer item (p.9-6)

Every 2,400 mi

8 items

Leaning system (check bearing for looseness or damage)

Engine

Factory

Factory: Three-wheel leaning front end. Every column incl. 1000 km (600 mi) initial; no annual check; dealer item (p.9-5)
Air filter case check hose (clean)

Fuel and air

Factory

Factory: Every column incl. 1000 km (600 mi) initial; no annual check; not a dealer item (p.9-4)
Check steering head bearing adjustment

Front end

Factory

Manual: Steering system (check bearing play and steering for roughness; check steering tie rod, replace if necessary). Factory: Every column incl. 1000 km (600 mi) initial; no annual check; dealer item (p.9-5)
Front fork (check operation and for oil leakage, replace if necessary)

Front end

Factory

Factory: Marked 4000-16000 km; no annual check; no fork oil change interval printed; dealer item (p.9-6)
Inspect rear shocks for leaks and damping

Rear suspension and frame

Factory

Manual: Shock absorber assemblies (check operation and for oil leakage, replace if necessary). Factory: Marked 4000-16000 km; no annual check; dealer item (p.9-6)
Unified brake system (lubricate link pivots and moving parts with silicone grease; lubricate cable end with lithium-soap-based grease)

Brakes

Factory

Factory: Marked 4000-16000 km; no annual check; dealer item (p.9-5)
Check wheel bearings for play

Wheels and tires

Factory

Manual: Wheel bearings (check bearing for looseness or damage). Factory: Marked 4000-16000 km; no annual check; dealer item (p.9-5)
Wheels (check runout and for damage, replace if necessary)

Wheels and tires

Factory

Factory: Marked 4000-16000 km; no annual check; dealer item. Balance the front wheels whenever tires or wheels have been changed or replaced (p.9-4)

Every 3,000 mi or 12 months

3 items

Adjust automatic / semi-automatic clutch

Primary and gearbox

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

Every 4,000 mi or 12 months

1 item

Inspect CVT drive belt, rollers / sliders and clutch shoes

Final drive

Guideline

Typical scooter interval. Your owner's manual figure governs; check belt width against the service limit.

Every 4,800 mi

4 items

Clean oil strainers / mesh screens

Engine

Factory

Manual: Engine oil strainer (clean). Factory: Marked at 1000, 8000 and 16000 km (600/4800/9600 mi); no annual check; dealer item. With the repeat-from-4000-km rule the next marks fall at 28000 and 36000 km (p.9-6)
Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug (check condition, adjust gap and clean). Factory: Marked at 4000 and 12000 km (2400/7200 mi); no annual check; dealer item (p.9-3)
Replace spark plugs

Engine

Factory

Manual: Spark plug (replace). Factory: Marked at 8000 and 16000 km (4800/9600 mi); no annual check; dealer item (p.9-3)
Evaporative emission control system (check control system for damage, replace if necessary)

Controls and cables

Factory

Factory: Marked at 8000 and 16000 km (4800/9600 mi); no annual check; dealer item (p.9-3)

Every 5,000 mi or 12 months

1 item

Replace oil filter

Engine

Guideline

Every 6,000 mi or 12 months

5 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.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

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

Every 7,200 mi

3 items

Check and adjust valve clearances

Engine

Factory

Manual: Valve clearance (check and adjust). Factory: Every 12000 km (7200 mi), printed as text; dealer item (p.9-3)
Exhaust system (check for leakage, tighten, replace gasket if necessary)

Engine

Factory

Factory: Every 12000 km (7200 mi), printed as text; dealer item (p.9-3)
Change final drive (rear drive) oil

Final drive

Factory

Manual: Final transmission oil (change). Factory: Change marked at 1000 km (600 mi) initial, then every 12000 km (7200 mi) printed as text; check vehicle for oil leakage every column incl. 1000 km; no annual check; dealer item (p.9-6)

Every 10,000 mi or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change gearbox oil

Primary and gearbox

Guideline

Every 12,000 mi or 2 years

3 items

Synchronize throttle bodies

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 12,000 mi or 3 years

1 item

Replace CVT drive belt

Final drive

Guideline

Typical scooter interval, or sooner if the belt is cracked, glazed or below its width limit.

Every 12,000 mi

1 item

Replace air filter element

Fuel and air

Factory

Manual: Air filter element (replace). Factory: Every 20000 km (12000 mi), printed as text; not a dealer item. TIP: disposable oil-coated paper element, cannot be cleaned with compressed air; service more often if riding in rain or dusty areas (p.9-4, 9-7)

Every 14,000 mi

1 item

Repack / replace steering head bearings

Front end

Factory

Manual: Steering system (lubricate with lithium-soap-based grease). Factory: Every 24000 km (14000 mi), printed as text; dealer item (p.9-5)

Every 15,000 mi 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 20,000 mi or 4 years

1 item

Repack / replace wheel bearings

Wheels and tires

Guideline

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

Every 24,000 mi or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 25,000 mi or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 30,000 mi 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

Change engine oil

Engine

Factory

Manual: Engine oil (change, warm engine before draining; check oil level and vehicle for oil leakage). Factory: Printed as text: at the initial interval (1000 km / 600 mi) and when the oil change indicator flashes or comes on; no fixed distance printed; annual check marked; dealer item (p.9-6)

Every 2 years

3 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Factory

Manual: Brake fluid (change). Factory: Every 2 years, printed as text; dealer item. TIP: also replace internal components of master cylinders and calipers every 2 years (p.9-4, 9-7)

Every 3 years

1 item

Replace coolant

Engine

Factory

Manual: Cooling system (change coolant). Factory: Change every 3 years, printed as text; check coolant level and leakage marked 4000-16000 km and annually; dealer item (p.9-6)

Every 4 years

2 items

Inspect brake hoses; replace old rubber

Brakes

Factory

Manual: Brake hoses (replace). Factory: Every 4 years, printed as text; check for cracks or damage and correct routing and clamping marked 4000-16000 km and annually; dealer item. TIP: replace every 4 years or sooner if cracked or damaged (p.9-4, 9-7)
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

1 item

Replace tires on age (regardless of tread)

Wheels and tires

Guideline

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.