Vespa GTS Super 300 ie - Service manual > Cooling/Braking system

Cooling system

Adding engine coolant.

The fluid level must checked every 10,000 kilometres with a cold engine, in the way shown below: Place the scooter on its centre stand and on flat ground.

• Undo the screw shown in the figure and remove the expansion tank cap on RHS.

• Top up if the fluid level is near or below the MIN level edge. The liquid level must always be between the MIN and MAX level.
• The coolant consists of an ethylene glycol and corrosion inhibitor based 50% de-ionised water-antifreeze solution mix.

CAUTION

DO NOT EXCEED THE MAX. LEVEL WHEN FILLING SO AS TO AVOID THE COOLANT ESCAPING FROM THE EXPANSION TANK WHEN THE VEHICLE IS IN USE.

Braking system

Level check

The brake fluid tanks for the front and rear brakes are located on the pumps under the handlebar cover. Proceed as follows:

• Remove the brake pump cover
• Rest the vehicle on its centre stand with the handlebars perfectly horizontal;
• Check the fluid level through the sight glass as shown in the figure. A certain lowering of the level is caused by wear on the pads.

Top-up

• Position the vehicle on a flat surface and on the centre stand
• Remove the brake pump cover as indicated in the photo

Check the brake fluid level through the sight glass on the pump as shown in the photograph

• If the level is below the minimum, fill using the two screws shown in the figure

• Remove the gasket and fill with DOT 4 until the spyglass is completely covered

For refitting purposes carry out the operations in the reverse order from the removal operation and respect the tightening torque of the tank cover screws.

CAUTION

AVOID CONTACT OF THE BRAKE FLUID WITH YOUR EYES, SKIN, AND CLOTHING. IN CASE OF ACCIDENTAL CONTACT, WASH WITH WATER.

CAUTION

THE BRAKING CIRCUIT FLUID IS HIGHLY CORROSIVE.

THEREFORE, WHEN TOPPING UP, AVOID LETTING IT COME INTO CONTACT WITH THE PAINTED PARTS OF THE VEHICLE. THE BRAKING CIRCUIT FLUID IS HYGROSCOPIC, THAT IS, IT ABSORBS HUMIDITY FROM THE SURROUNDING AIR. IF MOISTURE CONTAINED IN THE BRAKE FLUID EXCEEDS A CERTAIN VALUE, THIS WILL RESULT IN INEFFICIENT BRAKING.

CAUTION

NEVER USE BRAKE FLUID COMING FROM OPEN OR PARTIALLY USED CONTAINERS. UNDER NORMAL CLIMATIC CONDITIONS, BRAKE FLUID MUST BE CHANGED EVERY 20,000 KM OR ANYWAY EVERY 2 YEARS.

Locking torques (N*m)
Brake pump reservoir screws 15 to 20

Headlight adjustment

Proceed as follows:

1. Place the vehicle in running order and with the tyres inflated to the prescribed pressure, on a flat surface 10 m away from a white screen situated in a shaded area, making sure that the longitudinal axis of the vehicle is perpendicular to the screen;

2. Turn on the headlight and check that the borderline of the projected light beam on the screen is no higher than 9/10 or lower than 7/10 of the distance from the ground to the centre of the vehicle's headlamp;

3. If otherwise, adjust the right headlight with screw "A".

N.B.

THE ABOVE PROCEDURE COMPLIES WITH THE EUROPEAN STANDARDS REGARDING MAXIMUM AND MINIMUM HEIGHT OF LIGHT BEAMS. REFER TO THE STATUTORY REGULATIONS IN FORCE IN EVERY COUNTRY WHERE THE VEHICLE IS USED.

 

Troubleshooting

Engine

Excessive oil consumption/Exhaust smoke

EXCESSIVE CONSUMPTION

Insufficient lubrication pressure

POOR LUBRICATION PRESSURE

Transmission and brakes

Clutch grabbing or performing inadequately

IRREGULAR CLUTCH PERFORMANCE OR SLIPPAGE

Insufficient braking

INEFFICIENT BRAKING SYSTEM

Brakes overheating

BRAKE OVERHEAT

Steering and suspensions

Heavy steering

STEERING HARDENING

Excessive steering play

EXCESSIVE STEERING CLEARANCE

Noisy suspension

NOISY SUSPENSION

Suspension oil leakage

OIL LEAKAGE FROM SUSPENSION

See also: