Which ACV mod works best?
Posted November 29, 2006 - 05:50 PM
Posted November 29, 2006 - 05:56 PM
Posted November 29, 2006 - 06:04 PM
Posted November 29, 2006 - 06:21 PM
Posted November 29, 2006 - 07:12 PM
I had to go to a way smaller pilot jet (40 from 48), and went to 100 PAJ as per YZ450F.
Throttle just seems crisper with this mod than with out.
As with Clarky said, it is a lot of tinkering for little gain (gains are still there), but what else are you going to do once you already have done everything to your bike?
I also think going to a factory pro jetting kit would have the most benefit of everything to do with the carby. I got the JD kit, that's only because I learned about factory pro after my purchase. D'OH! One will be going on my next bike, I might still get a kit for this bike and sell the JD kit.
Zip-ty sell it with everything you need for your carby:
Posted December 03, 2006 - 04:13 AM
With the ACV done, the fuel screw seems a lot more effective at dialing in the on/off throttle fuel setting, that is about all it is good for.
I took the spring out and "blocked" the diaphram with a spacer so it remained shut. This method allows use of all OEM jets.
Once I got the jetting sorted (with ACV blocked you will get some more "popping") I reinstalled as per OEM and accept that it will be a little rich on the overrun on "shut" throttle.