Bogging down engine, need help
#1
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Bogging down engine, need help
Ok my brother has a ski boat (I know, I know).
It has a 351 windser Hi output, He bought it at the beginning of the season, and it needed a bunch of maintenance. It was backfiring, but not anymore.
It has new plugs, wires, cap, rotor, rebuilt carb.
Motor sounds strong, but has a miss while idiling, and when you take off its VERY sluggish out of hole, but top end is fine.
It does have a minor exhaust leak.
Where would you start???
It has a 351 windser Hi output, He bought it at the beginning of the season, and it needed a bunch of maintenance. It was backfiring, but not anymore.
It has new plugs, wires, cap, rotor, rebuilt carb.
Motor sounds strong, but has a miss while idiling, and when you take off its VERY sluggish out of hole, but top end is fine.
It does have a minor exhaust leak.
Where would you start???
#4
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Join Date: Mar 2001
Location: BIrmingham, MI, USA
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Fuel Filters !!!! especially in a marine application. Also a miss at low RPM can be anything..bad plug gap ..wires..how about what kind of plugs are you running.???
#6
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If you have already replaced normal tune up parts make sure that you haven't crossed any ignition wires first off. If all OK then do a compression test. How many hours?
#7
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holley carb. the plugs wire cap, and rotor are all new and the correct ones. I know he bought them at the dealer. The wires arent crossed and it runs strong at wot, its just taking off.
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