E-Start after YZ cam and timing
Posted August 01, 2006 - 07:44 PM
Model (400 - 426 - 450): 2003 WR450
Timing (WR-YZ): YZ, with YZ Cam
Main jet: 170
Pilot Jet: 48
Fuel screw (turns out): 2 out
Needle model/Clip position: JD blue on the 4th groove
Airbox lid (on or off): snorkel removed
Air filter: K&N
Altitude where you ride: 0 - 1000 ASL
In case you were wondering.
Posted August 02, 2006 - 07:10 AM
Posted August 02, 2006 - 09:35 AM
Too be truly honest though, I never really thought it started that great with the WR cam either, when I compare this bike to my DRZ. My DRZ fires up if you just look at the button.
Posted August 10, 2006 - 09:43 AM
ps: sorry , my english is very poor
Posted August 20, 2006 - 03:36 PM
Posted August 21, 2006 - 12:06 AM
Dam youre lucky, I also put in the 70 starter jet, but mine will only start 1/2 the time with the button..... HMMmmmmmmmmm
Yah thats what I thought. When I get the thing jetted just right I will post exactly what I've done. I did ALL the free mods including the BK mod and several other things. I am at 3500 ft elev. It runs a little rich right now and I'm suspicious of the JD red needle being to rich. I measured the diameter of the stock needle and it appears to be about .001" larger diameter than the JD red throughout.
Even so, the YZ cam did make it run smoother and gave it some high end boost.
Posted August 21, 2006 - 07:15 AM
If your having problems starting, you might want to check your exhaust valve clearances.
Posted August 21, 2006 - 01:09 PM
YZ exhaust cam
BK mod with about 1 mm clearance
100 main air jet
70 starter jet
fuel screw 1-1/4 turn out
FMF power bomb header and Q2 muffler
stock needle shimmed with 2 small washers
elev. 3500ft temp. 70-80F
I am finally satisfied with how it runs........very smooth running with cam, no sputter, no bog, very responsive.
Posted August 21, 2006 - 03:29 PM
Posted August 22, 2006 - 08:55 PM
Posted August 25, 2006 - 03:32 PM
Posted September 14, 2006 - 09:04 AM
I am about to begin one of these projects. Actually using a WR motor to upgrade my YZ SM with 5spd, E-start. The WR is essentially new so only the hot YZ parts are remaining in the motor.
Posted February 02, 2007 - 12:51 PM
Somebody deactivated the air cut valve system?? What isthe experience??
My frend kill the acv, and the estartig is perfect when the bike is warm.