Posted June 30, 2006 - 09:53 AM
I have an 04wr450, Canadian model, so already has yz throttle stop and no grey wire to worry about. No other mods and stock pipe (I know I know, toss the insert. but I need it quiet).
Here is what it has.
main - 160
Needle - OBDUQ - 4th position
Pilot - 48
Leak - 50
I ride at 2000 feet in temperatures between 60 and 85
The bike outright rips when I crack it wide open so no issue there. But it still pops on deceleration so that means it is lean, correct? Indy's jetting specs suggest between a 165 and a 168 main for my elevation (but I am running stock exhaust) so I thought I would go up to a 165.
I have no clue what to do with the needle as Indy is using the JD kit, but am I close with the OBDUQ on 4th position?
Pilot is a 48 already so I won't change that. But while cruising on low throttle (1/8 to 1/4) the bike has a major hesitation, sometimes enough to jerk you around a bit. Could that mean my Pilot jet is clogged?
Lastly, the leak jet. I think I am between a 40 and a 50 according to Indy's specs. Would dropping it down to a 40 give me a little more torque off the bottom?
Thanks for the input guys, I can't tell you how much I have learned from reading your posts.
Posted June 30, 2006 - 10:13 AM
Posted June 30, 2006 - 10:15 AM
Does you bike smell like unburnt fuel?
Does it get harder to start when hot?
Your PJ might be a tad rich. Try leaner, maybe 45.
And always remember, Only change ONE thing at a time.
Posted July 04, 2006 - 08:01 AM
Good point about only changing one thing at a time.
MotoGoalie, the exhaust has never smelled like unburnt fuel and the bike starts easily when hot. I have never needed the hot start lever. All I need to do is press the starter and give the throttle the tinyest twist.
So is popping on decel usually a pilot issue or a main issue?