"Look at the cam which is atta
"Look at the cam which is attached to the magneto plate. There should be two raised or boss marks near the right side (the right side when you're in the boat, looking at the carburetor).
Slowly advancing the throttle, that cam should make contact with the carburetor throttle roller just as the left side of the roller lines up with those marks.
That adjustment assures that the throttle butterfly opens and closes at that point.
Your problem could also be that the high speed jet is somewhat clogged. This is a common problem when the jet is fouled."
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