Suggestions for CV Carb Tuning Please... : V-Twin Forum: Harley Davidson Forums

chesau · 03-23-2009, 03:13 PM

I am about to have some cams put in my bike, and would like to get some ideas for tuning my CV carb.

The details....
2004 Road King
Stock 88" motor
Screamin Eagle Air Cleaner
V&H True Duals
Samson muffled fishtails
Will be running Andrews 26G cams

I don't want to get into a debate about the pipes. I know they aren't the best for top performance, but I like them and I have no plans to change them.

So, with that in mind, any suggestions for a starting point for jets and needles?

Thanks in advance for any input.

george248 · 03-23-2009, 05:36 PM

46 or 48 slow jet

Sporty needle

stock 190 main

farfromiowa · 04-17-2009, 09:11 AM

The CV 40 (actually a 38mm as measured at the venturi) are rich, believe it or not. Leave the intermediate jet alone, I have tried everything froma 42-48 and the 42 works best on an evo or a twin cam. Run a 180 or a 190 main depending on the bike and a 1988 sporster needle. it works. Period. Been there, done that.