Adjusting The Carburettor - Sherco TY 12S Manuel Du Propriétaire

Adjusting the carburettor

ORIGINAL CARBURETTOR SETTINGS
Type of carburettor
Main jet
Idle jet
Carburettor needle
Needle position
Mixture adjusting screw open
ALTITUDE
From 0 to 700 meters
From 700 à 1400 meters
From 1400 à 2000 meters
From 2000 meters and more
66 66
Maintenance processes
The carburettor adjustment is factory set, however,
depending on the altitude and weather conditions, it
A
may require minor adjustments.
The idling speed and the richness of the (air-fuel)
mixture can be adjusted.
The condition of the spark plug is useful for detecting
the condition of the richness of the carburettor
mixture.
B
IDLE JET
17,5
17,5
17,5
17,5
- IDLE: minimum engine carburetion.
A
- RICHNESS: air-fuel mixture.
B
Spark plug has dry deposits - poor carburetion.
Clean spark plug – correct carburetion.
The spark plug is dirty – excessive carburetion.
BS25-107
130
17,5
4B01
4
4,5
MAIN JET
130
122,5
115
107,5