exhaust and filter ?
01-14-2008 | 09:44 AM
#1
Thread Starter
Member
Squid
Joined: Jan 2006
Posts: 50
exhaust and filter ?
i have a high mount leo vince exhaust on my vtr. the bike smells like it runs rich, i will be checking the plugs later this week. my air filter needs replaced, so i am wondering what to go with. i have seen people having issues with getting it to run right with the k&n, is that because it is to rich or lean. i am still on stock jets, and money is a big issue. any advice is appreciated.
01-14-2008 | 11:09 AM
#2
Senior Member
MotoGP
Joined: Aug 2007
Posts: 2,547
From: Way Out West
If you are indeed running rich with stock jetting and leo vince, I don't know what it could be but a clogged air filter. An OEM filter costs about half as much as a K&N or a BMC and is good for another 12,000 miles. If money is an issue and you don't feel like buying a jet kit and pulling your carbs multiple times, I'd just buy a new Honda air filter.
Last edited by RK1; 01-14-2008 at 11:12 AM.
01-14-2008 | 05:53 PM
#4
Senior Member
Superstock
Joined: Jul 2007
Posts: 387
It would seem that there would be ONE setting for jets, kits, pipes, that works but apparently that's not the case. Some have luck running KN and stock stuff but the rule of thumb is freer flowing cans means leaner running. Freer flowing air filter such as KN, means a bit more air flowing thru carbs...which SHOULDN"T change mixture but in practice...does. Dirty filter can restrict flow and cause richer running. The answer? Run a new stocker and see how she runs...do plug checks with new plugs at 1/2 throttle and WFO.
Still rich? Get a KN and check again...and again.
Still rich? Get a KN and check again...and again.
01-14-2008 | 05:58 PM
#5
Administrator
World Champion
Joined: Dec 2004
Posts: 105,287
From: Fulton, MO
It's likely that you don't require jetting since the restrictive stock muffler is limiting at this point. It's not going to pump much more air due to the backpressure.
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