Carburetor Adjustment - Yamaha VK540EG Owner's Manual

ESU00152

CARBURETOR ADJUSTMENT

CAUTION :
• • • • •
Be sure this adjustment is serviced by a Yamaha
dealer.
• • • • •
Be sure the carburetor silencer is installed during
running to prevent engine damage.
Under some operating conditions the carburator setting
may have to be changed due to air temperature changes,
elevation changes, use of alcohol oxygenated fuels, etc.
and should be done by an authorized Yamaha dealer.
CAUTION :
The drive chain gears and V-belt clutch should be
adjusted when operating over 900 m (3000 ft) high
altitude. Consult a Yamaha dealer.
Pilot Screw Adjustment
Turn the pilot screw in or out to adjust low speed tuning.
Standard pilot screw position:
1 1/4
turns out from the seated position
Pilot screw
804-017
Turn in
Turn out
Mixture
Leaner
Richer
8-7
Condition
Warmer weather
Higher altitude
Colder weather
Lower altitude