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SYM · Shim-adjusted overhead-cam four-stroke single, wet sump, separate gearbox oil, CVT belt drive

Symphony 50

Library entry covers 2010-2025

33 factory 45 guideline

Published source

SYM Symphony 50 (XF05W1-EU series) Owner's Manual, section 15 periodical maintenance schedule (manualsnet)

Factory source. Covers SYM XF05W1-EU series Symphony 50 owner's manual (European; no year printed in the pages read).

78 items for a 2025 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, shim adjusted (incl. desmo)
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Single carburetor
Cooling: Air / oil 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

2025 SYM Symphony 50

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

Every 621 mi or 1 month

7 items

Bolts and nuts on each component (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Air cleaner element (inspect at 300 km; clean)

Fuel and air

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Battery (inspect)

Ignition and electrics

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Transmission leakage (check)

Primary and gearbox

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Brake mechanism and brake linings or pads (inspect)

Brakes

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Tires and pressure (inspect)

Wheels and tires

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Throttle valve operation and cable (inspect)

Controls and cables

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 1,000 km or 1 month. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

Every 1,000 mi or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 1,864 mi or 3 months

8 items

Cooling system (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Engine bolts and nuts (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Engine oil (replace)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km per the table (the oil change text on p.13 says every 1,000 km); inspect every 1,000 km. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Spark plug (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Fuel tank switch and lines (inspect)

Fuel and air

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Clutch disc (inspect)

Primary and gearbox

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Cam chain and ignition timing (inspect)

Final drive

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Steering bearing and handlebars (inspect)

Front end

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 3,000 km or 3 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

Every 3,000 mi or 12 months

9 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean fuel tap filter / sediment bowl

Fuel and air

Guideline
Adjust automatic / semi-automatic clutch

Primary and gearbox

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 3,107 mi or 5 months

1 item

Transmission oil (replace)

Primary and gearbox

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 5,000 km or 5 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

Every 3,728 mi or 6 months

10 items

Cylinder head, cylinder and piston (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Drive belt and rollers (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
ECU idle speed (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Front and rear suspension (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Oil filter screen (clean)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Valve clearance (inspect)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Air cleaner element, paper (replace)

Fuel and air

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Exhaust system, carbon cleaning (inspect)

Fuel and air

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Main and side stands (inspect and lubricate)

Rear suspension and frame

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Shock absorbers (inspect)

Rear suspension and frame

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km, then every 6,000 km or 6 months. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

Every 4,000 mi or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
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 5,000 mi or 12 months

2 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline

Every 6,000 mi or 12 months

7 items

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 6,214 mi

2 items

Fuel pump filter (replace)

Fuel and air

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 10,000 km. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Shock tension rod (inspect)

Rear suspension and frame

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 10,000 km. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

Every 7,456 mi or 12 months

3 items

Drive belt and rollers (replace)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 12,000 km or 1 year. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Spark plug (replace)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 12,000 km or 1 year. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.
Air cleaner element, sponge (replace)

Fuel and air

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 12,000 km or 1 year. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

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

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 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 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 15,000 mi or 4 years

1 item

Check valve clearances (shim adjusted)

Engine

Guideline

Every 16,000 mi or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 18,641 mi

1 item

Shock tension rod (replace)

Rear suspension and frame

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): every 30,000 km. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

Every 20,000 mi 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 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 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

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
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

1 item

Crankcase leakage (check)

Engine

Factory

Factory: Periodical maintenance schedule, section 15 (manual p.22, manualsnet viewer p.23): at 300 km; periodic inspection printed in one merged cell across the later columns. Columns as printed: new (300 km), every 1,000 km or 1 month, every 3,000 km or 3 months, every 6,000 km or 6 months, every 12,000 km or 1 year, whichever comes first. Codes: I inspect, clean, adjust; R replace; C clean (replace if necessary); L lubricate. Service more often in dusty, high-speed or high-mileage use.

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.