1994-2001 Yamaha Venture/V-Max 500 Series Snowmobile Service Manual, Page 37Get this manual

1994-2001 Yamaha Venture/V-Max 500 Series Snowmobile Service Manual, Page 37

CARBURETOR TUNING 2E281 II:gs I_I Middle-Range and High Speed Tuning No adjustment is normally required, but adjustments
chamber installed; severe engine damage may result 1Start the engine and operate the machine under normal conditions to make
sure the engine operates smoothlyThen stop the engine2Remove: Spark plugs 3Check: Spark plug insulator CD color medium to
light tan color indicates normal conditions Distinctly different color Replace main jet4The main jet should be adjusted on