Carburetor Adjustment - Yamaha YFM80WS Owner's Manual

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Carburetor adjustment

The carburetor is a vital part of the engine and

requires very sophisticated adjustment. Most

adjusting should be left to a Yamaha dealer who

has the professional knowledge and experience

to do so. However, the idling speed may be per-

formed by the owner as a part of the usual main-

tenance routine.

The carburetor was set at the Yamaha facto-

ry after many tests. If the settings are dis-

turbed by someone without sufficient techni-

cal knowledge, poor engine performance and

damage may result.