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 23hp with mikuni rev limiter questions 
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MMT Member

Joined: Fri Jun 03, 2011 2:09 pm
Posts: 19
Location: Edmonton, Alberta, Canada
Post 23hp with mikuni rev limiter questions
Hey guys I have two questions.

1- Which rev limiter (4700 rpm or 5000 rpm) should I have with the 34mm mikuni carb on my 23 vanguard?

2- why is the rev limiter supposed to be mounted on the transom? Does it have to be mounted there as I frequently move my motors around. Can I mount it to the motor somehow, or loose in a box that is mounted in the boat?

I called BPS a few times but can’t get an answer.

Thanks.

_________________
23hp MBHD on a 16x48 riveted jon.
retired: 23GDLT & 27BTLT


Fri Jan 15, 2021 8:25 pm
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MMT 1000 Club

Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
Post Re: 23hp with mikuni rev limiter questions
Vibration causes rev limit boxes to fail sooner than if mounted on the transom

#CFFITR
#mudmotor>physics


Fri Jan 15, 2021 9:14 pm
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MMT Pro Member

Joined: Tue Jun 05, 2018 3:25 pm
Posts: 69
Post Re: 23hp with mikuni rev limiter questions
I’d get the lower rpm one if I were you. Carb, heads, cam and exhaust on a 23 on a 1644gd boat and I don’t get above 4400 rpm most times. Unless you’re on a real light boat I don’t think you’d turn that many rpm. I like to think less rpm means less time to failure.


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Mon Jan 18, 2021 12:30 pm
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MMT Sponsor

Joined: Fri Jan 10, 2014 1:16 pm
Posts: 2107
Location: Gladewater TX
Post Re: 23hp with mikuni rev limiter questions
The 2 options that i know of are 4400 and 5100. To small and too big. I use the big one. If using a stock cam it will probably sling the decompression arm off anyway lol


Mon Jan 18, 2021 3:14 pm
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