Johnson, 9R-71R 1971 Serial# J3400658

by Harry Belvedresi
(Boyle, Miss.)

Recently overhaul carb. and replaced new points and condenses. This motor start easy and run great at any speed until I put the cover over the motor, run bad while cover at middle to high speed. As soon I take the cover off motor gain the speed very fast. Did cleaned the airway in front of the cowl.
What is the next to do to this motor? thank you.

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