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MAINTENANCE AND LUBRICATION
Adjustments
Oil Pump - 400 Engines
1. Before adjusting the oil pump, check engine idle R PM and
carburetor adjustments in your owner’s manual supplement.
2. Loosen the t hrottle cable jam nut and turn t he adjuster in or out
until there is 1/16″ -1/8″ (.16 - .32 cm) throttle lever travel before
the throttle slide starts t o open. See your owner’s manual
supplement.
3. Place very slight pressure on the t hrottle lever until all freeplay is
removed from t he throttle cable (to the point where the carb slide is
just starting to rise).
4. Lift the boot (1) up off the adjuster sleeve (2).
5. Remove the oil pump cover and loosen the cable adjuster locknut.
6. Adjust the oil pump cable until
the marks align (3) when the
throttle slide just begins to rise.
7. Tighten the l ocknut.
8. Recheck the adjustment. If it’s
correct, slide the boot all the way
down over the upper portion of
the bottom nut (4) to ensure good
sealing against water entry.
9. Reinstall the oil pump cover and gasket .
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