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140 Adjustments for Competition
(6)
(5)
(5)
(8)
(7)
(6)
(8)
0 – 0.1 in (0 – 3 mm)
(5)
(5) air vent hoses
(6) overow hose
(7) fuel line
(8) fuel line clamps
Carburetor Adjustment & Tuning Tips
Idle Speed Adjustment
1. If the engine is cold, start it and warm it up 3
minutes. Then shut it off.
2. Connect a tachometer to the engine.
3. Shift the transmission into neutral. Start the
engine.
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5. Adjust idle speed with the throttle stop screw
(1).
Idle speed:
1,700 ± 100 rpm
(1)
(1) throttle stop screw
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