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Old 03-04-2013, 06:17 AM   #46
Airhead Wrangler
Adios Mexico
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Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,580
Originally Posted by oldroadie View Post
The old rule of thumb is one groove on the needle equals three main jet sizes.
Who made that rule? Needle position and main jets aren't adjusting the same thing at all. Your needle regulates mix from idle all the way up to WFO, Whereas your main jet just limits the amount of gas at WFO and just below.
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.

Airhead Wrangler screwed with this post 03-04-2013 at 06:30 AM
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