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

GTS 300

Library entry covers 2009-2025

23 factory 35 guideline

Published source

Vespa GTS Super 300 Bedienungsanleitung (German, Piaggio), Tabelle Wartungsprogramm pp.80-81 (factory PDF, copy on archive.org)

Factory owner's handbook. Covers GTS Super 300 i.e. (2008-era) German owner's manual.

58 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, twin shocks
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2019 Vespa GTS 300

On the road: every 300 km

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 500 km

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 800 km

1 item

Check coolant level

Pre-ride / on the road

Guideline

Every 5,000 km or 12 months

5 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
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 5,000 km

1 item

Check brake pads and discs

Brakes

Factory

Manual: Bremsbeläge. Factory: I every 5k km column.

Every 6,500 km 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 9,500 km or 12 months

6 items

Inspect coolant hoses and clamps

Engine

Guideline
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 10,000 km

15 items

Change engine oil

Engine

Factory

Manual: Motoröl. Factory: R at 1k then every 10k km; I (check) at 5k intermediates.
Laufschuhe/ Variatorrollen

Engine

Factory

Factory: R every 10k km (sliders/variator rollers).
Luftfilter Riemenfach

Engine

Factory

Factory: I every 10k km (belt-case air filter).
Motoröl (I)

Engine

Factory

Factory: Printed marks per the re-read doubt: Motoröl R at 1, 10, 20 ... 60 and I at 5, 15, 25 ... 55 (Km x 1.000); the I marks are spaced every 10,000 km starting at 5,000 km, taken as interval 10,000 km. Existing entry holds the R operation. (From the re-read doubt notes: Vespa GTS 300, printed line or second operation stated in the DOUBT line.)
Probefahrt

Engine

Factory

Factory: As printed: I at 1, 10, 20, 30, 40, 50, 60 (Km x 1.000)
Radaufhängung/Federung

Engine

Factory

Factory: I every 10k km.
Replace coolant

Engine

Factory

Manual: Kühlflüssigkeit. Factory: I at 1k then every 10k km; replace every 2 years.
Replace oil filter

Engine

Factory

Manual: Ölfilter. Factory: R at 1k then every 10k km.
Replace spark plugs

Engine

Factory

Manual: Zündkerze. Factory: R every 10,000 km. Cols 1/5/10/15/.../60 x1000 km.
Check throttle cable(s) free play and return

Fuel and air

Factory

Manual: Gaszug. Factory: A at 1k then every 10k km.
Clean / inspect air filter

Fuel and air

Factory

Manual: Luftfilter. Factory: C (clean) every 10k km.
Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: Elektrische Anlage und Batterie. Factory: I at 1k then every 10k km.
Check steering head bearing adjustment

Front end

Factory

Manual: Lenkung. Factory: A at 1k then every 10k km.
Replace brake fluid

Brakes

Factory

Manual: Bremsflüssigkeit. Factory: I at 1k then every 10k km; replace every 2 years.
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Reifendruck und Abnutzung. Factory: I at 1k then every 10k km.

Every 15,000 km

1 item

Replace drive belt (wear or damage based)

Final drive

Factory

Manual: Antriebsriemen. Factory: R at 15, 30, 45, 60k km.

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
Synchronize throttle bodies

Fuel and air

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 19,500 km 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 20,000 km

3 items

Check and adjust valve clearances

Engine

Factory

Manual: Ventilspiel. Factory: A at 20, 40, 60k km.
Hinterradgetriebeöl (I)

Engine

Factory

Factory: Printed marks per the re-read doubt: Hinterradgetriebeöl R at 1, 20, 40, 60 and I at 10, 30, 50 (Km x 1.000); the I marks are spaced every 20,000 km starting at 10,000 km, taken as interval 20,000 km. Existing entry holds the R operation. (From the re-read doubt notes: Vespa GTS 300, printed line or second operation stated in the DOUBT line.)
Change final drive (rear drive) oil

Final drive

Factory

Manual: Hinterradgetriebeöl. Factory: R at 1, 20, 40, 60k; I at 10, 30, 50k km.

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 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 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

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 2 years

4 items

Bremsflüssigkeit * (wechseln)

Engine

Factory

Factory: As printed: * Alle 2 Jahre wechseln.
Kühlflüssigkeit * (wechseln)

Engine

Factory

Factory: As printed: * Alle 2 Jahre wechseln.
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

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

Sicherheits-Drehmomente

Engine

Factory

Factory: As printed: I at 1, 10, 30, 50, 60 (Km x 1.000)

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.