Bike not running correct

[Phaeton]

So the kids 2012 300 is having issues. It acts as if it has a fouled plug. Will run good on the top end but get to the low end and it will bog on ocassion. Sometimes it will back fire. One day the bike ran fine the next this.

Pulled and cleaned carb twice, checked reeds, checked PV, replaced the spark plug looked fantastic, pulled pipe and checked that.

The kill button has been harder to use lately you have to really push it and it either works or doesn't.

I have ordered a replacement along with a replacement map switch.

I am thinking it may be the kill switch.

 

[stian]

Disconnect the killswitch. You can disconnect the Mapswitch also, got nothing to do with it. Check your grounds.

 

[Phaeton]

Thank you that should be an easy test to see if they are the culprit.

 

[stian]

Thank you that should be an easy test to see if they are the culprit.

I wired an extra ground from the CDI to the subframe, just to be sure. Also you could check the resistance in the coil, just to be sure.

Good luck!