Sparking??????????

[Huggy]

OK we have been here already on this but I still get a STRONG BLUE spark when I revve up the engine and let go of the throttle. It has to be due to a bad coil leaking power when the engine is revved. If it increase the power in a normal fashion no spark. But when done fast you get a loud snapping and sparking as you decelerate.

I've replaced the plug wires, cleaned up and tightened the screws in the caps. Resistance is good just off 10K either way. Cant see any sparking anywhere except from the engine to the collar on the front right exhaust pipe. Number three cylinder I believe. I'm thinking maybe a problem with the number 3 coil? Any ideas?

 

[dacheedah]

OK we have been here already on this but I still get a STRONG BLUE spark when I revve up the engine and let go of the throttle. It has to be due to a bad coil leaking power when the engine is revved. If it increase the power in a normal fashion no spark. But when done fast you get a loud snapping and sparking as you decelerate.

I've replaced the plug wires, cleaned up and tightened the screws in the caps. Resistance is good just off 10K either way. Cant see any sparking anywhere except from the engine to the collar on the front right exhaust pipe. Number three cylinder I believe. I'm thinking maybe a problem with the number 3 coil? Any ideas?

 

 

bad or cracked ceramic on plug??

[cowpuc]

Are we talking about an area around the pipe itself? If so, I wonder if you are seeing an exhaust leak, not an electrical issue.

[Huggy]

Are we talking about an area around the pipe itself? If so, I wonder if you are seeing an exhaust leak, not an electrical issue.

 

I was just thinking the same thing!!!! I was just outside and I started the bike in the dark and there is no other spark. I'm thinking that when I revve up the engine unburned gas is leaking out a poorly sealed exhaust. Going to loosen and reseal it tomorrow and see what happens! Tanks for the input!!!

 

[Huggy]

OK ......It is now fixed!!!! Yes it was an exhaust leak! I loosened off the flange nuts and had to push down on the top of the pipe and then tighten up the nut again not no problem!! Thanks for the in put guys!! Now all I need to do is get new tires from the local biker guy. Then I can start to reassemble the bike!!