Sled engine,spark goes away?

[odypilots]

Originally Posted by bullnerd

nope!i Isolated The Coil Grounds,no Dice.

Damn!

[nutz4sand]

OK Check the TORS next (Carbs Throttle over ride system switches) they cut the spark if the carbs are not in perfect synchro.

[Bullnerd]

UHHH....i think i cut that part out of the harness!
I'll have to take look at the schematic again.

[nutz4sand]

If you look at number 3 and 4 in your diargam the throttle switch and the TORS are connected so if the CDI is not seeing what it needs to from them it might not spark.

The initial spark is as it gets spinng then realizes the engineers conditions are not being met.

Does it spark just once? Or two or three times?

For now I would check EVERY wire in and out of the CDI for its proper signal. If the signals are correct the CDI may be bad.

[nutz4sand]

Bull did you ever see this run? If not maybe the last guy sold it due to no spark?? lol Jes askin

[Bullnerd]

Pretty sure it ran, not positive.
Just one spark,nice fat blue one.
Thanks for your help BTW.
I'll do all your suggestions when i get home.

BTW,the last guy parted it out because it wouldnt start,but i found the wire that he pinched/broke.

[Bullnerd]

3&4 just go to ground?I did that.

Nutz do you think that TORS indicator light could be doing something,i have the wires connected but no bulb.

[nutz4sand]

Originally Posted by Bullnerd

Pretty sure it ran, not positive.
Just one spark,nice fat blue one.
Thanks for your help BTW.
I'll do all your suggestions when i get home.

BTW,the last guy parted it out because it wouldnt start,but i found the wire that he pinched/broke.

So the last guy pinched one off. Hmmmmmm

Originally Posted by Bullnerd

is this a common pulse coil or magneto problem?

I beleieve its a common pulse coil. See the coil feeds both plugs.

Originally Posted by Bullnerd

No key switch.
No handlebar switch.
I THINK all the grounds are good,they are all grounded to the block in the same spot.I tried to ground every thing that is grounded on the schematic.

The one wire i am not sure about goes to the "engine stop" switch.The schematic shows it grounded through the main switch and also through the engine stop switch?

The "Engine stop switch" To kill the motor either one (main or engine stop) simply grounds out the signal and kills the spark.

You say NO key switch and NO handle bar switch. WHAT did you do with those wires??

[nutz4sand]

Tell us ALL the mods you have done to the wiring.

[Bullnerd]

Not sure you want to see what i did to the harness.
Didnt have time to mess with it today ,and going riding tomorrow,but i'll try to get to it tommorrow.