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BS34 carbs on a 750 big bore kit
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Imcgyver
Full Member
Full Member


Joined: Jun 25, 2008
Posts: 15
PostPosted: July 20, 2009, 2:20 pm    Post subject: BS34 carbs on a 750 big bore kit
Hello I am getting another 81H with a bad ring motor, planning on buying the 750 bore kit. The question is to start with I am leaving all stock exhaust and air filter setup with BS34 carbs, what should I jet the carbs with for the 750 bore?
Thank you for your time and response.
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650skull
Support Staff
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Joined: Jul 19, 2007
Posts: 1186
PostPosted: July 20, 2009, 2:55 pm    Post subject: Re: BS34 carbs on a 750 big bore kit
I see Mike'sXS is out of bigbore kits. Could be a while and the new price will be interesting.
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jayel
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Joined: Apr 16, 2006
Posts: 3417
Location: SE Iowa 1974 TX650A
PostPosted: July 20, 2009, 3:07 pm    Post subject: Re: BS34 carbs on a 750 big bore kit
as far as the jetting goes, it shouldn't change much, putting a larger charge into the combustion chamber (50cc) isn't a big deal, reading the plugs will tell the story... looks like www.650central.com/ still has the big bore kits thing to do is ask 3M (Michael "Mercury" Morse) what to expect with jetting changes
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