User Manual

(EN)

ADJUSTING THE HIGH-SPEED NEEDLE

Turn the high-speed needle until you achieve the ideal

engine temperature and amount of exhaust smoke. The

engine should have a noticeable smoke trail during initial

acceleration and fade to a minor smoke trail when the engine

reaches full throttle.

If the engine exceeds proper running temperature, 250º F

(121º C), richen the high-speed needle immediately. If the

engine temperature is very low considering normal running

temperature, then lean the high-speed needle.

If the high-speed needle is too lean, it will cause a high idle

speed.

ADJUSTING THE LOW-SPEED NEEDLE

Turn the low-speed needle to adjust the engine idle speed.

Once you have achieved a proper idle speed, you can turn the

low-speed needle by one hour in either direction to reach the

optimal engine performance.