SHERCO XY 125, Owner'S Manual

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Adjusting the carburettor
The carburettor adjustment is factory set, however,
depending on the altitude and weather conditions,
it may require minor adjustments.
The idling speed and the richness of the (air-fuel)
mixture can be adjusted.
- IDLE: minimum engine carburetion.
- RICHNESS: air-fuel mixture.
The condition of the spark plug is useful for detec-
ting the condition of the richness of the carburettor
mixture.
Spark plug has dry deposits - poor carburetion.
Clean spark plug – correct carburetion.
The spark plug is dirty – excessive carburetion.
Type of carburettor
Main jet
Idle jet
Carburettor needle
Needle position
Mixture adjusting screw open
TK BS28
106
34
4B01
4
2,5
ORIGINAL CARBURETTOR SETTINGS
Maintenance processes
A
B
A
B