Ignitor Questions

[enb768]

1990 GS500

Alrighty i am totally new here and i have a question about my bike. I have been rebuilding it for about a year now and i finally got it running great and everything was looking good. I actually rode for about 300 miles last weekend. So monday when i get it out to go to work on it started right up and then died about 15 seconds later. There was no spark at all after that.  From there on i could get nothing. I tested the coils and  the pulse generator so i thought it was the ignitor. No problem there is a used bike place just up the road. went there got another ignitor put it on and it was good, for about 15 seconds again. Does anyone know what could be the problem with this thing. Thanks

[tb0lt]

If I were you, I would check the stator, regulator/rectifier to make sure the charging voltage is right. Also, check all your grounds.

[The Buddha]

1990 GS500

Alrighty i am totally new here and i have a question about my bike. I have been rebuilding it for about a year now and i finally got it running great and everything was looking good. I actually rode for about 300 miles last weekend. So monday when i get it out to go to work on it started right up and then died about 15 seconds later. There was no spark at all after that.  From there on i could get nothing. I tested the coils and  the pulse generator so i thought it was the ignitor. No problem there is a used bike place just up the road. went there got another ignitor put it on and it was good, for about 15 seconds again. Does anyone know what could be the problem with this thing. Thanks

Huh 15 secs huh.
OK I'm gonna guess its acting up as its warming up. That implicates the crank trigger, not the ignitor box.
Cool.
Buddha.

[enb768]

Alright so if the signal generator is the same thing as the crank trigger than it seems to be ok. I looked in my clymer manual and i did all the resistance testing.
i got brown to black/blue 330 and green/white to black blue 337 ohms

thanks guys for the help

[5thAve]

You are absolutely sure this is a spark problem and not a fuel problem?

[enb768]

100% sure. every time i put a new ignitor on the thing it runs for about 10-15 seconds and then nothing until i put a new ignitor on it again. i've been through about 5 in the last 2 days trying to figure out the problem. i'm lucky that i have a salvage guy right up the road who i disassemble for.

[5thAve]

 
Dunno.  I have not seen that before, and don't remember hearing of it, either. Sorry I can't help more.