is the ignition coil on a yz250f compatible with a wr450f?
Posted October 20, 2012 - 02:12 PM
I've checked valve clearances, and rebuilt the carb, only thing I can think of is the coil or CDI now, even took it to a mechanics and he couldn't fix the problem... just made it a bit better.
My friend has a 03yz250f - would I be able to take the coil off of his bike and try it on my wr450, just till it gets hot and see if it stalls out. If that doesn't fix it, would I be able to swap the CDI?
Posted October 20, 2012 - 02:17 PM
Posted October 20, 2012 - 02:22 PM
Posted October 20, 2012 - 02:30 PM
William- Ive tried 2 different pilot jets (45 and 48) and all of the screw settings +/- on eighth turns out from top. All the mechanic did before was get it a little more exact than I did, its not a carb issue lol
Posted October 20, 2012 - 02:37 PM
The fuel screw/pilot setup is definitive regarding pilot jet selection. It is not a subjective sort of thing. It is very definitive.
The coil swap is a ok test but it is the wrong way to diagnose a problem. Swapping parts without proper tests will have you chasing your tail. You cannot swap CDEIs though. Your CDI is DC, the YZ is AC.
Very few if any bikes will accept WOT from idle without stalling. No one rides a bike at idle then goes WOT, it cannot be done anyway. If your bike is fine when rolling on the throttle and merely has a nasty bog at low RPM then your focus should be on the AP.
Posted October 20, 2012 - 02:46 PM
[color="#282828"]Itll do that when its very hot, after being ridden hard for a while, it wont like running smoothly, stall and not want to start, but if i let it cool it will be ok, but a pain to keep running, I figured I was over heating it. (though now that I think of it my friends yz250f would still run fine... when my wr started to do this)[/color]
[color="#282828"]I seem to have the AP pump dialled in (but can't tell for sure due to above) I can blip the throttle and it makes a crisp brap, Also did the O-ring mod. [/color]
Edited by ecookman, October 20, 2012 - 02:47 PM.
Posted October 20, 2012 - 10:05 PM
Edited by mtahoe, October 20, 2012 - 10:08 PM.
Posted October 21, 2012 - 07:56 AM
Posted October 21, 2012 - 11:26 AM