Carburetor Characteristics; Idle Adjustment - PIAGGIO Ape Workshop Manual

APE TM Benzina
Specification
Dell'Orto type
Diffuser
Maximum jet
Minimum jet
Minimum fixed air
Maximum fixed air
Starter jet
CAUTION
CHECK THAT THE CARBURETTOR IS WELL LOCKED, THAT THE VALVE COVER AND THE FIT-
TINGS OF THE ADMISSION DUCT ARE NOT LOOSE, IN ORDER TO AVOID HARMFUL AIR
LEAKAGE AFFECTING THEIR CARBURETION.

IDLE ADJUSTMENT

The operations for adjusting the idle speed must be carried out when the engine is warm, as follows:
1. Acting on the throttle valve travel end adjustment screw (2) until approaching the corresponding limit
at spontaneous stop of the engine;
In these conditions, act on the mixture flow adjustment screw (1) to reach a higher rpm number.
If with this adjustment the RPM number reached is excessive, reduce it, using the screw (2) lowering
further throttle valve, reaching a minimum regular regime (1250 - 1450 rpm).
KEY:
1. Idle adjustment screw
2. Throttle valve travel end adjustment screw
3. Transmission and throttle control
4. RPM limiter device
CARBURETTOR CHARACTERISTICS
Maintenance
Desc./Quantity
SHB 22/22
mm. 22
73/100 long
55/100 long
100/100
170/100
70/100
MA - 35