Lost Spark! common reasons? what to check

[jtbhq420]

i lost spark while on the first trail ride with it and i cant figure out why i checked the obvious things, looked for loose connections wires dissconnected, is it the coil maybe? how would i check that i dont think it would be the stator im only runnning stock lights which should damage anything

 

any help would be greatly appreciated the rain washed away most of the snow and i wanna ride

 

thanks Jimmy

[magz]

i lost spark while on the first trail ride with it and i cant figure out why i checked the obvious things, looked for loose connections wires dissconnected, is it the coil maybe? how would i check that i dont think it would be the stator im only runnning stock lights which should damage anything

 

any help would be greatly appreciated the rain washed away most of the snow and i wanna ride

 

thanks Jimmy

 

was it wet or muddy when you rode it and did you go through a puddle?

 

try pulling the stator cover and check pick-up gap and flywheel then trace back...

[jtbhq420]

was it wet or muddy when you rode it and did you go through a puddle?

 

try pulling the stator cover and check pick-up gap and flywheel then trace back...

 

 

it was a little wet but when it dried wouldnt i have spark

 

how do i check pickup gap on the stator? and what should it be at

[volcrano]

it was a little wet but when it dried wouldnt i have spark

 

how do i check pickup gap on the stator? and what should it be at

pick up gap is easily set with credit card.set one of the 2 humps on the flywheel over the pick up,loosen pickup,stick credit card btween hump and pickup,push pickup into credit card and tighten.also.common prob,un-plug the tors brain box,on frame on left side,underneath by upper left pipe mount.unplug,grab a good plug,stick it in the cap,ground it to head and turn over to check for spark.take both plugs out of cyls so it can be kicked by hand.hope this helps.

[jtbhq420]

pick up gap is easily set with credit card.set one of the 2 humps on the flywheel over the pick up,loosen pickup,stick credit card btween hump and pickup,push pickup into credit card and tighten.also.common prob,un-plug the tors brain box,on frame on left side,underneath by upper left pipe mount.unplug,grab a good plug,stick it in the cap,ground it to head and turn over to check for spark.take both plugs out of cyls so it can be kicked by hand.hope this helps.

 

 

Thank you verry much i will try that, im hoping somthing works im tired of seeing it in the garage

[Larry's Shee]

Check stator cover isn't full of water. Check ALL wireing, switches, grounds.

[camatv]

buy rent or steal a manual.

[jtbhq420]

i swapped my cdi and coil theyre good my stator and pickup coil ohms are reading right the spacing on the pickup coil is good and i have yet to find a broken wire i have no idea what it could be my key switch and kill switch are good i have no idea what it could be.

 

 

Any other help would be greatly appreciated!!!!

I wanna ride it was 70 out today

 

Thanks, Jimmy

[700vflash]

Is the flywheel nut torqued down, sometimes they will loosen up?

[jtbhq420]

Is the flywheel nut torqued down, sometimes they will loosen up?

 

that is completly tight

[700vflash]

Are you sure it is a spark issue, not fuel, air, or compression issue?

[jtbhq420]

pretty sure compression feels normal and even if i lost fuel air or compression wouldnt i have spark

[700vflash]

How are you checking for spark?

[WINDYCITYJOHN400]

It'll sound simple, but sometimes the problem is simple.....Check to make sure that your key is working (If you still have a functioning key) We had a spark issue once and after checking EVERYTHING else, we discovered that even though the key was "On" it wasn't really working. Wish we had found it sooner. Lost a whole day of riding over that one. I also had the kill switch on a Honda 400EX do the same thing. I was stuck in the Kill mode. You might check that too. Make sure the ON for the ignition switch still works.

NOTE: Yes you will need some type of voltage tester or Ohm meter to check this.

Hope it's not anything else, cause this is the cheap fix. Anything else is going to cost some green.

[Larry's Shee]

Muddy water leaves the dirt after it dries wether in plug connections or switches. Trim plug wires 1/4 inch reinstall boots. BTW, while you have connections apart put die-electric grease in them.

Edited March 19, 2011 by Larry's Shee