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Thread: Bad timing advannce trigger?
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07-08-2010, 08:08 AM #1Member
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Bad timing advannce trigger?
84 black max 150, motor normally runs like a champ, use the boat on a daily basis, took it out last weekend and all it will do is idle around, anything over 1/4 throttle and the motor just bogs and falls on face, excellent fuel delivery, excellent spark- checked at ramp under load, even when bogging. All I can think of is the timing is not advancing. It acts just like it does if you are opening carb linkage only, and not advancing the timing, I checked all linkage it is moving the trigger all the way open.
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07-08-2010, 08:55 AM #2
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07-08-2010, 09:17 AM #3
If the trigger is moving, it's advancing. It'd be pretty hard not to. Pull all the white/black stripe wires off the switchboxes and check the bias terminals (first one on the left where the white/black wires were) for a short to ground. If its not grounded, leave the white wires off, put a timing light on it and check WOT advance. That'll answer your question about timing.
Steve Schefer