1991 4.3 V6 Mercruiser bogs on accel and won't pass 3000 RPM?

MikeyFree

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Jul 4, 2015
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Hello all,

In reference to this old topic in the following link, it appears to be very similar to my issue so I just wanted to say a quick thank you! http://forums.iboats.com/forum/engin...eed-help/page1

I've got a 1991 Glastron 1900SL BR with the exact same engine, same year and I'm having the same problem! Has a little trouble starting and idles great but when I goose the throttle to get it up on plane she starts to bog down intermittently. When I FINALLY get it up on plane it runs OK but won't go much past 20 mph or 3000 rpm. Thought it might be dirty fuel so I ran a few cans of sea foam through it with 91 octane and it didn't do squat.

Going to replace the fuel pump and filter (original is still on it) and see if I can't clean the Jets and carb myself. I'm not seasoned mechanic so that sounds a little intimidating. Might just habe to take it in to the professionals...

Thanks again!
 
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