Jetting and Timing problem solved
Posted February 05, 2003 - 10:35 AM
Miricles never cease to happen. The woodruff key had sheared and the flywheel had rotated enough to throw the timing off but the bike would start with e-start and run. After replacing the key we settled on the following jetting:
stock DUT needle in stock #4 clip pos.
#72 starter jet(this could probally be smaller but it was all I had)
fuel screw 1 & 3/4 turns out
The blue beast is finally rocking. I will still play around with the YZF needle but will wait until after this weekends race to see how she performs.
I can not believe I have been chasing my tail for a week now but I am very happy to have resolved this issue.
Posted February 05, 2003 - 02:42 PM
Posted February 05, 2003 - 03:44 PM
Posted February 06, 2003 - 03:45 AM
Posted February 06, 2003 - 06:13 AM
Posted February 06, 2003 - 07:29 AM
Posted February 06, 2003 - 07:38 AM
Posted February 06, 2003 - 09:13 AM
My bikes s/n is 680ish (can't remember exactly). It's a Canadian bike.
Studded up the 450 and went woods riding. This bike is fantastic. It feels as light as a 250 in the tight stuff. Power is super smooth, no big hit like the 426.
Using my incredably accurate bathroom scale I weighed my old bikes.
97 XR600 full of gas - 303lbs
01 WR426 full of gas - 288lbs
03 WR450 full of gas - 275lbs empty 261lbs
Posted February 07, 2003 - 02:07 AM
what were your symptoms from the sheared key problem. i have jetted my bike to your specs and it accelerates like a champ. my problems are trying to hold a steady 5th gear speed, it wants to miss every few seconds. also, i have to pump the throttle one time before i hit the button to start the bike and it pops(i wouldn't call it a backfire, but almost as loud)when it starts everytime.