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AQ131A275 rpm surge

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dcowan636

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"Hello, been still having some

"Hello, been still having some probs with my bayliner --- The rpms are surging at wot... I hit around 4500 - 5000 rpms at wot -- boat will run great for about 200ft or so, but if running wot the whole time it starts to surge (speed drops from 32mph to 20mph), If I leave the throttle alone it will start to smooth out after a little while and I will hit 4500-5000 rpms again, It does seem to come out of it sooner if I back off the throttle to try and match the lower rpms -- I posted before but wasn't clear enough on what was going on -- still took the advice offered --- thanks
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--- replaced the fuel vent tube and anti siphon valve -- but still happening -- tuned up last year with new cap/rotor/plug/wires etc. -- also put gasket kit in carb (1bbl solex) -- wondering now if I did it right? and had to replace a weak fuel pump -- seems to only have this condition under wot, motor will pur at idle / lower rpms and starts with ease---
Any more advice would be app. Thanks

P.S. still point set up w/ stock coil"
 
I would definately try switchi

I would definately try switching over to electronic ignition. It's cheap and well worth it!!!!
 
"any suggestions on what ignit

"any suggestions on what ignition to go with? It still is odd that it does not hesitate at any other throttle setting -- if you are going on a slow cruise around shore at 10-15mph it runs like a dream, so i am not confident that it is all due to the ignition... but worth a shot"
 
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