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mudlife1234
MMT Pro Member
Joined: Thu Jul 05, 2012 12:39 pm Posts: 73 Location: Delacroix Marsh
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 Carb Adjustment
Hey guys, I was wondering if anyone knew how to adjust a carb on a stock MB 35 HD Sport?
PM me or just reply
_________________ 1651 Excel Viper W/ MB HD 35 Stage 2
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Sat Jul 14, 2012 3:04 pm |
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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: Carb Adjustment
Why do you think it needs adjustment? What are your symptoms?
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Sat Jul 14, 2012 3:18 pm |
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mudlife1234
MMT Pro Member
Joined: Thu Jul 05, 2012 12:39 pm Posts: 73 Location: Delacroix Marsh
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 Re: Carb Adjustment
It kills when I put it in gear.
_________________ 1651 Excel Viper W/ MB HD 35 Stage 2
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Sat Jul 14, 2012 4:22 pm |
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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: Carb Adjustment
What does it idle at out of gear? If you give it a little gas, it stays running?
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Sat Jul 14, 2012 4:28 pm |
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mudlife1234
MMT Pro Member
Joined: Thu Jul 05, 2012 12:39 pm Posts: 73 Location: Delacroix Marsh
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 Re: Carb Adjustment
1100 - 1200 out of gear, yes it stays running.
_________________ 1651 Excel Viper W/ MB HD 35 Stage 2
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Sat Jul 14, 2012 5:01 pm |
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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: Carb Adjustment
That sounds about right. How high are you having to rev it up to keep it running? Has it ever run properly?
If it has run properly before, I would start with a good cleaning. Drop the bowl, remove the jets, clean them out real well.
Deadbird8 has posted pictures of the linkage and how to adjust the carb on a bunch of different posts. If a good cleaning doesn't help you out, you may dig through some of his posts and see if you can find any help there. Keywords, governor, black caps, adjustment, adjust, etc.
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Sat Jul 14, 2012 5:15 pm |
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mudlife1234
MMT Pro Member
Joined: Thu Jul 05, 2012 12:39 pm Posts: 73 Location: Delacroix Marsh
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 Re: Carb Adjustment
Thanks cb that was very helpful. I will try that
_________________ 1651 Excel Viper W/ MB HD 35 Stage 2
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Sat Jul 14, 2012 6:58 pm |
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deadbird8
MMT 1000 Club
Joined: Wed Feb 04, 2009 7:50 pm Posts: 3833 Location: Old East Dallas, Texas
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 Re: Carb Adjustment
Has this been happening since the motor was new or did it just start?
A couple of things to try- First, the black caps on the top of the carb adjust the idle air mix on each cylinder. There are limiters on the caps so you have a small range to adjust them. Make note of the position of the screw on each side and adjust them with a small screwdriver so idle smooth. If idle is already smooth and the motor doesn't kill when you come off the throttle quickly then adjust the governed idle spring.
Try bending this tab a little (minor adjustment). It puts tension on the governed idle spring which sets the low point the throttle will drop when put under instantaneous load. Doing it while on the water allows you to test immediately so bring gloves (muffler is hot) and a tool to bend it (long needle nose).
_________________ Excel 1851F4 w/ MB35HD+R CDI with a little bit of this and little bit of that
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Sun Jul 15, 2012 4:19 am |
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mudlife1234
MMT Pro Member
Joined: Thu Jul 05, 2012 12:39 pm Posts: 73 Location: Delacroix Marsh
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 Re: Carb Adjustment
Thanks for your help deadbird, I looked at some of your old posts and i think I fixed the problem.
_________________ 1651 Excel Viper W/ MB HD 35 Stage 2
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Sun Jul 15, 2012 7:43 am |
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mud slinger 69
MMT 1000 Club
Joined: Sun Aug 28, 2011 4:27 pm Posts: 1194 Location: Utah
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 Re: Carb Adjustment
So what was it ?
_________________ We ant just mormons and polyganists we got rednecks too
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Sun Jul 15, 2012 7:47 am |
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mudlife1234
MMT Pro Member
Joined: Thu Jul 05, 2012 12:39 pm Posts: 73 Location: Delacroix Marsh
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 Re: Carb Adjustment
I just had to adjust the gov and now it runs like a charm
_________________ 1651 Excel Viper W/ MB HD 35 Stage 2
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Sun Jul 15, 2012 10:37 am |
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