03 wr450 missing/skipping/sputtering.
Posted 13 June 2012 - 03:58 AM
Posted 13 June 2012 - 04:16 AM
Posted 13 June 2012 - 04:30 AM
From the sound of the plug, yes. And listen to Maniac's statement as well, one of the reasons I don't like DynoJets kits is their drilling the carbs thing.
I know for the VFR street bikes they had you drill the slides, and I've seen and heard them do that a lot. You can silicone the hole closed but it's still not "correct" once you've done the change.
But it's either rich mixture or oil getting into the plug if it's black.
Posted 13 June 2012 - 10:28 AM
Posted 13 June 2012 - 03:58 PM
Posted 13 June 2012 - 05:57 PM
It's going to be far more than just a main jet, but yeah, you sound lean.
Posted 14 June 2012 - 03:15 PM
Posted 15 June 2012 - 05:13 AM
Correct, the pilot jet is the circuit that feeds the engine when the throttle is closed. If too much fuel is fed in then you get poping. The WR tried to get around this with a air cut valve (valve to add more air when throttle is closed to lean the pilot during decel) but it just doesnt work that well. I have mine deactivated (turn diaphram backwards) its a two minute job and completly reversible if you dont like it.
With the correct pilot and fuel screw dialed in I think its probably the least poping fourstroke I've ever ridden. Nice and quiet to keep the neighbors happy!
Posted 15 June 2012 - 11:20 AM
Posted 15 June 2012 - 11:34 AM
Posted 16 June 2012 - 06:18 AM