I just got a used 09 WR . Bike was having issues running on idle and the cylinder had been taken off and put back together reusing the same gaskets so I went ahead and bought the GYTR AIS removal kit and OEM gasket set for the top end. Took the bike apart, got rid of the AIS, installed GYTR needle + jets, torqued everything to spec, replaced spark plug with a new one, and oiled and installed a new air filter. Naive me thought I would be left over with a refreshed bike after all this work
Before all this work, the bike would start after about 40-50 kicks and run well as long as I was on the throttle (a-la 2 stroke). Had the infamous bog but nothing too bad. If I coasted to a stop, I would have issues keeping the bike running without working the throttle. After all the work I can barely start the bike and again it will only run from half throttle on (no more bog after o-ring mod on the AP cam).
Here are important details about the bike:
AIS Removal kit installed with all the included jets and needles.
Bike now only likes to start if I hold in the Hot Start lever, even if the bike is totally cold.
AP Squirt is .56 seconds long and does not hit the slide. It shoots nice and strong and hits the middle intake valve with impressive accuracy
Valve clearances are (when looking at the bike from cam chain side):
EX .20mm EX .20mm
IN .11mm IN .07mm IN .07mm
Side question, should I buy the $70 shim kit to fix those clearances immediately or can it wait a bit?
Any help would be greatly appreciated. I have attached a picture of my cams from both sides to confirm correct installation. Picture is taken with the stator indicator on the TDC "I"
Edited by 5TJL, January 27, 2014 - 08:31 PM.