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Author Topic: Keihin 39 PWK  (Read 1459 times)

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Keihin 39 PWK
« on: February 22, 2016, 03:49:30 pm »
About 9 years ago I completely rebuilt my 88 250 motor.  I bought a Q pipe and a keihin 39 PWK carb.  After all that life happened and it sat.  I have recently got everything together and ready to go.  I have a few questions.  First,  Do i need a new intake boot or is there a way to modify the one I have to work?  This carb just will not fit.  Next, Where do I start with jetting?  I am basically at sea level, Q pipe basically stock cylinder.  I know these are probably dumb questions but all my searches are for tuning the carb to a 500r.  Thanks for all your help in advance.  I am very excited to get this together now that my kids are at riding age now.  Im sure as I build this quad up I will have many more questions.

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Re: Keihin 39 PWK
« Reply #1 on: February 22, 2016, 05:30:37 pm »
I would get ahold of Q he would be your best bet with that pipe and help tuning for it
87 Zilla dune build
87 Zilla banana build
89 Lt250 Bartlett trail port
95 Lt80 kids build
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Re: Keihin 39 PWK
« Reply #2 on: February 22, 2016, 07:49:15 pm »
You will need a carb boot for an 88-90 Zilla
Brian
1988 Suzuki LT-250R (The HPR test mule)
1987 Suzuki LT-500R
1990 Suzuki LT-500R
1982 Honda ATC-185S
1982 Honda ATC-250R

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Re: Keihin 39 PWK
« Reply #3 on: February 23, 2016, 10:53:01 am »
Just ordered the intake boot. The lt500 boot looks angled. Do I need a new air box or an adapter to the existing air box? 

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Re: Keihin 39 PWK
« Reply #4 on: February 26, 2016, 02:41:53 pm »
You will not be able to use the stock air box with this new set-up.
Brian
1988 Suzuki LT-250R (The HPR test mule)
1987 Suzuki LT-500R
1990 Suzuki LT-500R
1982 Honda ATC-185S
1982 Honda ATC-250R

 

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