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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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 Cutting out Just added mikuni carb, heads, cam, roller rockers, and gutted exhaust, have trouble with the motor cutting out at 3200 to 3300. Running 167.5 main jet 30 pilot. Motor will hit 4700 no problem out of the water and in water cuts out. Anybody have any idea what could be causing this?
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| Sat May 13, 2017 6:02 am |
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brickgw
MMT 1000 Club
Joined: Wed Apr 17, 2013 5:15 pm
Posts: 2032
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Re: Cutting out Make sure both cylinders are getting good spark and she isn't running on 1 cylinder.
Sent from my SM-G900P using Tapatalk
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| Sat May 13, 2017 8:23 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out I did forget to mention it has brand new coils, I changed them to be able to rule out ignition problems.
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| Sat May 13, 2017 9:42 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out It did flood through the overflow tube earlier so I'm thinking it's got something to do with the float or needle and seat
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| Sat May 13, 2017 9:44 am |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm
Posts: 16915
Location: Rowlett, TX
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Re: Cutting out Did you gap the coils correctly?
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| Sat May 13, 2017 10:02 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out Used a feeler guage and checked the old one then put the new one on and checked it till I got it
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| Sun May 14, 2017 5:50 am |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm
Posts: 16915
Location: Rowlett, TX
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Re: Cutting out What if the old ones weren't set correctly?
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| Sun May 14, 2017 9:05 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out Well I would assume they were since it ran good up until I had everything added
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| Sun May 14, 2017 10:42 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out What is the recommended gap to run? I mean the one coils were at .010 that's what I put them back on at
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| Sun May 14, 2017 10:45 am |
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Will C
MMT Sponsor
Joined: Fri Jan 10, 2014 1:16 pm
Posts: 2107
Location: Gladewater TX
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Re: Cutting out Briggs spec is .005 gap. But if you are at .010 i doubt its your problem
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| Sun May 14, 2017 11:39 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: Cutting out First of all 30 pilot Is a lot. 25-27.5 is a good start, But that is irrelevant to the current situation. Cutting out as in electrical spark stopping, or a fuel/air delivery issue? What needle and seat you have installed? If its not a 2.3 you will flood the carb.
_________________
Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
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| Mon May 15, 2017 8:08 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out I have not checked the needle and seat. I bought the kit from the boat dr. As far as the cutting out once I hit 3200 to 3300 rpm it's like it's bouncing off of the rev limiter.
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| Mon May 15, 2017 8:59 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out Personally I'm wondering if the needle is sticking
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| Mon May 15, 2017 9:02 am |
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Smoke
MMT 1000 Club
Joined: Fri Jan 23, 2009 1:27 pm
Posts: 1095
Location: SW Michigan
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Re: Cutting out
_________________
1854 Prodigy Open
HDR/Stage 3 mods
Prodigy Boats Pro Staff
BPS Swamp Staff Member
Blackwater Marine LLC.
Quote classic by rangerp: "Red seemed to be enjoying herself, and I assume by the look on her face was about to hit the high-note and throw a locate as she treed the possum."
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| Mon May 15, 2017 10:02 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: Cutting out cdi or non cdi? External limiter?
_________________
Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
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| Mon May 15, 2017 10:31 am |
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duck_watcher12
MMT Pro Member
Joined: Thu Apr 09, 2015 5:18 pm
Posts: 196
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Re: Cutting out No I have not talk to Andy yet. And it is a cdi
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| Mon May 15, 2017 7:32 pm |
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