Carburetor Adjustment - Yamaha YFM660R Owner's Manual

EBU15160

Carburetor adjustment

The carburetors are vital parts of the engine and
require very sophisticated adjustment. Most ad-
justing should be left to a Yamaha dealer who has
the professional knowledge and experience to do
so. However, the idling speed may be performed
by the owner as a part of the usual maintenance
routine.
CAUTION:
_
The carburetors were set at the Yamaha facto-
ry after many tests. If the settings are dis-
turbed by someone without sufficient
technical knowledge, poor engine perfor-
mance and damage may result.
_
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