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It is currently Thu Mar 28, 2024 12:50 pm
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[ 6 posts ] |
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Quinby90
MMT Member
Joined: Sun Feb 15, 2015 7:28 pm Posts: 34
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35 mud buddy need advice
I have a 35 Mb sport replaced heads and exuast with bps rapid heads are Boat dr perf heds after motor warms up it pops almost backfires at idle once you it warm up and let idle for a few mins at idle and give it throttle it throws white smoke then soon clears up motor has almost 300 hours. it only does this if idling for extended period of time not sure if its runnin too lean or bad gas boat is run weekly and only has these symptoms if left idling not sure if i need to rejet as iam running stock carb I will drain gas replace fuel filter and plus along with run seafoam to try and clean carb was just wanting advice on if i really needed a mikuni carb to compensate for mods
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Sun Jan 07, 2018 8:44 pm |
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Quinby90
MMT Member
Joined: Sun Feb 15, 2015 7:28 pm Posts: 34
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Re: 35 mud buddy need advice
bump
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Mon Jan 08, 2018 5:52 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am Posts: 6233 Location: Tarkington, TX
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Re: 35 mud buddy need advice
Lean pop at idle. The black limiting caps on you idle adjustment screw need to ne trimmed off so you can fully rotate them. Open up 1 full turn and you should be in the ball park. Stock carb with heads/cam I usually open 3 turns from lightly seated and adjust it until the lean pop goes away.
This is assuming you have 0 intake leaks where the carb/adapter meet and or the intake/cylinder heads meet. No tuning will fix that.
_________________ Bayou Surface Drive 337-351-0362 Tarkington, TX 77327
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Tue Jan 09, 2018 6:22 am |
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Quinby90
MMT Member
Joined: Sun Feb 15, 2015 7:28 pm Posts: 34
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Re: 35 mud buddy need advice
Thanks for the response I've ran it for a few hours like this is it possible I've damaged the motor
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Tue Jan 09, 2018 8:54 am |
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brycecheramie
MMT 1000 Club
Joined: Thu Nov 04, 2010 7:38 am Posts: 4323 Location: Cut Off, La.
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Re: 35 mud buddy need advice
_________________ Refurbishing a Prodrive
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Tue Jan 09, 2018 8:58 am |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am Posts: 6233 Location: Tarkington, TX
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Re: 35 mud buddy need advice
There isn't enough load on a motor at idle to really have detrimental effects. Clear it up and enjoy your engine.
_________________ Bayou Surface Drive 337-351-0362 Tarkington, TX 77327
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Tue Jan 09, 2018 9:09 am |
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