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jxgrisso
New User
| Posts: 3
| Joined: 10/08
Posted: 10/06/08
03:39 PM
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Are new air intake systems really needed with aftermarket pipes?
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scruffy
User
| Posts: 221
| Joined: 01/08
Posted: 10/07/08
08:32 PM
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![]() I; NO. IF you want a little better performance you should rejet the carbs. If all you want is the good sonding bike then just run the pipes ![]() and have fun. ![]() scruffy
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jxgrisso
New User
| Posts: 3
| Joined: 10/08
Posted: 10/08/08
09:39 AM
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Thanks for your help!! ![]()
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frbock
User
| Posts: 221
| Joined: 11/07
Posted: 10/10/08
04:31 PM
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Normally, re-jetting is recommended when you put on pipes, and it's not bad if they do it right. You don't need a new main jet, just fixing the low end.
http://www.motorcyclecruiser.com/tech/motorcycle_jet_kits_carburetion/index.html
Bikes come out running lean, so, if they fatten up the bottom, you end up with a better ride (doesn't matter whether the pipes were swapped or not).
If you replace the intake on the other hand, re-jetting is mandatory. You have 5-10% more air going in, you need more fuel to keep the lean burn from getting dangerous.
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