Altitude and jetting?
Thread Starter
Senior Member
Superstock
Joined: Jun 2008
Posts: 283
From: greeley, co
Altitude and jetting?
I am moving to greeley colorado this weekend and was wondering what jetting I needed for a 6000 ft elevation. I will put a K&N filter in and I have debaffled pipes. Suggestions?
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Superstock
Superstock
Joined: Jun 2005
Posts: 489
From: San Antonio, TX
More air or less fuel
If memory serves me correctly, other members have reported a rich condition with stock main jets at 6,000'(carbon fouled plugs)... a condition which was remedied simply by installing a K&N air filter. I would think that aftermarket slip-ons would really help this as well. In my experience with this bike, modified stock mufflers yield a very small increase in exhaust gas flow. You could be OK with what you already have done, assuming the carbs have not been re-jetted.
Administrator
World Champion
Joined: Dec 2004
Posts: 105,287
From: Fulton, MO
If you've specifically tuned for sea level then you're going to have to make changes to all three circuits of the carbs - mixture screws, needle height, and main jet. For stock carbs, a simple adjustment of the mixture screws will get you by, but changing mains to one size smaller is highly recommended.
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