No spark. Tried everything

[powder pounder]

2010 m8 no spark. Replaced wiring harness and stator. Unplugged handle bar controls, grounds. Only left is coils, can't be 4 coils or the magneto. Any ideas boys?

 

[diggerdown]

Timing pickup?

 

[Brutus]

I had the same problem.... Made it as far as you did replacing parts before I figured it out. I had a bad Ecu. Slapped in a loaner one and she fired right up. I found a used one on eBay for $450 vs brand new price. Best of luck.

Bru

 

[powder pounder]

Thanks but no it's not ecu. Tried a different one.

 

[Brutus]

Have you looked at the wires going into the coils? I had problems with a few that had gotten between the gas tank and tunnel that had worn thru pretty bad and had one wire that had pulled loose from the back of the red harness on one of coils. I loosened the tank up a bit and pulled all that out from under the there. Not sure if that helps.

Bru

 

[m8magicandmystery]

yea..bad spot like ya say..and sometimes the wires crossing over under the gas tank from left to right side were never properly in the tank recess and they are shorted..and tailight wires can cause issues..

Have you looked at the wires going into the coils? I had problems with a few that had gotten between the gas tank and tunnel that had worn thru pretty bad and had one wire that had pulled loose from the back of the red harness on one of coils. I loosened the tank up a bit and pulled all that out from under the there. Not sure if that helps.

Bru

 

[av8er]

ohm out the coils

to make sure they are good,no spark test Stator after that.

 

[powder pounder]

Replaced wiring harness and stator already.

 

[HIDY]

Trigger coils

 

[shadow conspiracy]

ended up swapping out timing sensors and fly wheel from another sled and there is now spark. Has anyone seen a flywheel go bad before?

 

[HIDY]

Nop it was the sensor/trigger coil