Jetting Summary
#1
Jetting Summary
Ok, I know this subject has been beaten to death ( did alot of searches) but I'd like to sumarize what I think is the bottom line. Let me know what you think.
Carb jetting with stage 1 AC/pipes:
45 slow, sportster needle ( or shim stock needle) 190 stock main, 2 1/2 turns out on idle mixture OR
48 slow, 190 stock main, 2 1/2 turns out on idle mixture
Can't really read the plugs with today's gas so:
Popping thru exhaust= rich
Popping through carberater=lean
Eventual color of pipes ( gold/blue) doesn't mean anything
High speed jet/needle doesnt really matter until around 3500 RPM which is around 80 MPH. Below that, its all the slow speed jet. Above 3500 RPM it's almost all the high speed jet which stock at 190 is most likely rich anyway.
Did I get this right?
Carb jetting with stage 1 AC/pipes:
45 slow, sportster needle ( or shim stock needle) 190 stock main, 2 1/2 turns out on idle mixture OR
48 slow, 190 stock main, 2 1/2 turns out on idle mixture
Can't really read the plugs with today's gas so:
Popping thru exhaust= rich
Popping through carberater=lean
Eventual color of pipes ( gold/blue) doesn't mean anything
High speed jet/needle doesnt really matter until around 3500 RPM which is around 80 MPH. Below that, its all the slow speed jet. Above 3500 RPM it's almost all the high speed jet which stock at 190 is most likely rich anyway.
Did I get this right?
#2
RE: Jetting Summary
Yep, all but the low jet, make it a #46 and you're on the money. #48 with no shimming "compensates" but the #46 with shims is better. (better transition)
Nice to see you did your homework! https://www.hdforums.com/m_65123/tm.htm
Nice to see you did your homework! https://www.hdforums.com/m_65123/tm.htm
Thread
Thread Starter
Forum
Replies
Last Post