PIAGGIO X9 Service Station Manual page 62

Carburettor
- Disassemble all carburettor components, accurately
wash them in solvent, then dry them with compressed
air. To ensure thorough cleaning, pay special atten-
tion to the passages in the carburettor body.
- Carefully check the condition of all components.
- The throttle must slide freely in the mixture chamber.
If the play is excessive because of wear, replace the
throttle.
- If the chamber is so worn that the valve, though new,
does not seal and slide properly, replace the carburet-
tor.
- When reassembling the carburettor, it is a good rule
to replace the gaskets.
Specifications
Type: vacuum-operated KEIHIN VE3BD
Main jet: 105
Idle jet: 40
Conical needle: A15D
Fuel inlet port: 0 2 mm
Float level: 18.5 mm from float chamber surface
Venturi air choke tube diameter: equivalent to 27.5 mm
Throttle valve spring free length: ~ 130 mm
Caution
- Petrol is highly flammable. Always fit new
seals and gaskets to prevent leakage.
Maintenance
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