electrical gremlins, geniuses needed
Posted May 06, 2007 - 12:33 PM
o1 wr 426 - now 444 eric gorr kit
bike was running 9 months ago but after pulling the cylinder I found piston scoring.
fairly clean rebuild and after putting the engine back in the bike, no spark when grounded to exhaust.
1. ignition primary coil .3 ohms
2. ignition secondary coil 11.5K ohms
3. cap pulled from lead 9.5K ohms (spotty reading new cap purchase 62$)
4. CDI magneto pickup 279 ohms
5. source 1 745 ohms
6. source 2 545 ohms
7 neutral switch 1st gear infinite
2nd continuity 0 ohms
3rd 0 ohms
so i think everything i can check is within spec. except for neutral switch
but I thought neutral switch wouldn't kill the spark completely
cleaned all connections with elec contact cleaner, blown with compressed air ground on ignition coil cleaned.
manual shows no procedure for voltage regulator, is that just for the headlight?
then there is the CDI?
is there anything i might have missed when installing the flywheel something that triggers the ignition?
I'm pretty confident the timing chain and cams are all lined up per the manual
i'm getting ready to tear open the conduits to look for open wires.
all thoughts are welcome, so if you view this post please throw in your ideas please!
thanks Toxic T (dying to go ride)
Posted May 06, 2007 - 06:45 PM
Posted May 06, 2007 - 09:26 PM
Glimmer of light at the head light.
can anybody come up with a list of frame tie in grounds.
case tie in.
anybody have a component that tested per the shop manual but was still bad?
P.S> birdie did i see on my searches you recently completed a rebuild and kicked it over on the fourth try? nice.
Posted May 07, 2007 - 04:19 PM
i see 50 views and one responce.
Posted May 07, 2007 - 05:11 PM
Posted May 07, 2007 - 06:08 PM
after getting a new cap I cut off a quarter inch of the lead to the plug and no spark. my brother just pulled the ignition coil off a 79 xr 250 and we put it in the wr, it sparked. OK bad ignition coil that tests good. but my bro suggests cleaning up the igntion coil, he cuts off another quarter inch of the lead, try for a spark and surprise good spark!
the engine sounds great.
Posted May 07, 2007 - 07:57 PM