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rpm
https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=48713
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Author:  cootbandit [ Mon Dec 30, 2013 4:37 pm ]
Post subject:  rpm

How many rpms should a 23 lt be running I get 3400 with just ma and that it

Author:  alexm [ Mon Dec 30, 2013 4:50 pm ]
Post subject:  Re: rpm

It depends on the year of the engine I believe. 3400 is very safe. A lawn mower shop told me 3600 is a good number. My opinion is 3800 would be a happy medium. But I run mine even into the 4000's with rev limiter set at 4300. I have mikuni carb and bps exhaust.

Author:  cootbandit [ Mon Dec 30, 2013 4:59 pm ]
Post subject:  Re: rpm

The motor is new with 29 hours. In getting the mikuni and bps crossover next week

Author:  cootbandit [ Mon Dec 30, 2013 5:08 pm ]
Post subject:  Re: rpm

How many wraps did you put for the tiny tach

Author:  SETx Longtail [ Mon Dec 30, 2013 6:11 pm ]
Post subject:  Re: rpm

I have 4 wraps on my tach wire.

I routinely turn my Honda 20 4100-4150... No issues and still haven't heard valves float lol. I try to keep it sub 4000 though. Only reason I'm that high now is due to prop wear.

Author:  alexm [ Mon Dec 30, 2013 7:27 pm ]
Post subject:  Re: rpm

I have 4 1/2 wraps. If you already ordered the mikuni then so be it. It's a lot of money for the small gains

Author:  cootbandit [ Mon Dec 30, 2013 8:17 pm ]
Post subject:  Re: rpm

I need it for the liad carrying my boat is to heavy. ... so I shouldn't order it

Author:  alexm [ Mon Dec 30, 2013 10:16 pm ]
Post subject:  Re: rpm

Don't get me wrong. Load carrying will definitely go up as so will speed by only 2 or 3 mph. But for the money it's better to save up and get a 35 hp. Which will make a more significant difference. Then mod that.

Author:  OlSchool [ Mon Dec 30, 2013 10:23 pm ]
Post subject:  Re: rpm


Author:  cootbandit [ Tue Dec 31, 2013 6:08 am ]
Post subject:  Re: rpm

It's 14x44 but it's sold is a old scully hull made with that thick shit

Author:  KaCajun Boy [ Tue Dec 31, 2013 9:15 am ]
Post subject:  Re: rpm

3400 is right for a new 23. I have a 16x38 and I can run 3400 all day. So it sounds like everything is good.

Author:  cootbandit [ Tue Dec 31, 2013 9:30 am ]
Post subject:  Re: rpm

What kind of speed you get with that gd boat kacajun boy and how does it do with 2 people im looking to get a new hull

Author:  cootbandit [ Tue Dec 31, 2013 9:33 am ]
Post subject:  Re: rpm

This is my rig

Author:  cootbandit [ Tue Dec 31, 2013 10:11 am ]
Post subject:  Re: rpm

Also my rpm drop when my buddy gets in the boat with me to like 25oo rpm or so

Author:  KaCajun Boy [ Tue Dec 31, 2013 12:06 pm ]
Post subject:  Re: rpm


Author:  cootbandit [ Tue Dec 31, 2013 12:49 pm ]
Post subject:  Re: rpm

I run 19 with my Battery, 11gallons of gas and a sack of decoys the minute my buddy(260#) jumps in it goes down to 13

Author:  cootbandit [ Tue Dec 31, 2013 12:50 pm ]
Post subject:  Re: rpm

I run 19 with my Battery, 11gallons of gas and a sack of decoys the minute my buddy(260#) jumps in it goes down to 13 it don't want to planeout is like driving a barge

Author:  diddyduck [ Tue Dec 31, 2013 1:04 pm ]
Post subject:  Re: rpm


Author:  cootbandit [ Tue Dec 31, 2013 1:10 pm ]
Post subject:  Re: rpm

Never thought of it like that lol

Author:  Will C [ Fri Jan 10, 2014 8:15 pm ]
Post subject:  Re: rpm

My bros 23 runs 3750 with head work and golf kart cam. Now runs 3940 with a stock 35 carb

Author:  cootbandit [ Mon Jan 13, 2014 8:34 pm ]
Post subject:  Re: rpm

What size prop yall running I have a 9x6 my bossy is a heavy 14 ft

Author:  Will C [ Tue Jan 14, 2014 12:06 am ]
Post subject:  Re: rpm

9x6 on warmed up 23 light boat. An 9x6 on a 25 too 1636.

Author:  cootbandit [ Tue Jan 14, 2014 12:11 am ]
Post subject:  Re: rpm

Should my rpm be higher than 3400 in the water

Author:  Will C [ Tue Jan 14, 2014 9:11 am ]
Post subject:  Re: rpm

3400 is at the bottom of the acceptable range but its still good. A clean 9x5 might ease the load a bit an put you round3700 3800. That must be a hefty boat

Author:  cootbandit [ Tue Jan 14, 2014 9:16 am ]
Post subject:  Re: rpm

Yes it is a scully hull built in 83 and you can't even tell looking at it she is a solid boat but Damn is to much for my 23 lol looking to get a light boat

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