jetting
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Road Captain
Joined: May 2008
Posts: 585
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jetting
Some time ago i blew a baffle out, i have successfully removed the other had it dyno and running extremely rich. i do not have the knowledge do rejet my self so im letting a local performace place here in town do this. I called earlier said they finnally have gotten the jet right but must fix the pilot jet. he also said its running about 75 hp. two questions will the back pressure hurt anything while running without baffles "i dont have the $ right now to buy new ones" also will baffles help increase horsepower?
05 1200c when i bought this bike the past owner knew even less than i do about the bike. he got out of the navy first thing he bought was this bike "said he had it bored out etc.. the guys at performance said it had a larger carb etc.. on it
05 1200c when i bought this bike the past owner knew even less than i do about the bike. he got out of the navy first thing he bought was this bike "said he had it bored out etc.. the guys at performance said it had a larger carb etc.. on it
A v twin needs back pressure to run right, in all honesty they all should have a 2-1 to run right... yes you will get more power with the baffels in becuse it will offer you add back pressure... man in all honesty with as $$$ as a dyno is it would be much cheaper to just rejet the bike
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Road Captain
Joined: May 2008
Posts: 585
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well just to dyno is just $50. they are rejetting now without any baffles being a carb there charging me a pretty penny called earlier said he had to take the carb off 7times just for the jet. then he said its running fine on the dyno in higher speeds but laggs getting there. he said it the pilot and he was starting on it this afternoon. he will prb charge me $ 300 for everything. jets dyno laber etc..
Road Master
Joined: Aug 2007
Posts: 1,183
Likes: 1
From: Graham, NC
When I read that post I was thinking "I sure hope the tech don't really have to remove the carb to change a jet."
FYI, re-jetting is a 10 minute job... tops. It's the testing and re-jetting again and again to get it right that is time consuming. A decent tech should have looked at the bike, carb, exhaust, etc and had a pretty good idea where to start. 7 jet changes seems a little much unless it's doing something funny on the A/F meter.
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Road Master
Joined: Jun 2008
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From: Ledyard, CT
How do you go about changing the jets yourself? Do you buy a kit that comes with all different sizes?
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Road Captain
Joined: May 2008
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im not sure im really new at this trying to learn! but i know looking at the original dyno sheets im extremely rich i mean off the chart. im getting my scoot back tommorrow and will attach the sheet if you all can help me with this! i will have no baffles plan on getting some this spring hopefully. money is still tight in the furniture world
Road Master
Joined: Aug 2007
Posts: 1,183
Likes: 1
From: Graham, NC
Just be aware that if you buy a dynojet kit it only comes with mains and they are not the same as the keihin mains. In other words, a Dynojet 160 is about the same as a keihin 190.
The other option is to just buy individual jets. They run about $3 from aftermarket vendors or $6 from the stealer.