Lost Spark To My Front Cylinder Today...

[J6G1Z]

There I was, riding along minding my own business, when all of a sudden my bike loses power & starts running like a 250. I limped it home as I was only a couple blocks away fortunately. I pulled the front plug (the easy one) and there is zero spark.

I have replaced my coils a short while back, but they were used coils also. The newer coils have 7K miles less on them than the original ones. I haven't done any trouble shooting yet, as I'm a bit disgusted with the bike right now. Between my jetting issues & now this. Anybody have any ideas?

Thanks
J.

[Bucko]

Easy to swap coils to see if the problem travels with the coil.  If it doesn't then the problem may be related to the pickup.

[Lefty]

Your title made it sound a lot worse! Losing spark is chicken feed compared to valve/piston failure. I feel certain you'll figure it out in no time and will post up what you found.

[thumperdh]

Yeah, worst case scenario popped into my mind when i heard "lost my front cylinder"

[J6G1Z]

I suppose the title does make it sound too drastic.

I changed the title to reflect the loss of spark.

Thanks everyone
J.

[J6G1Z]

Well... I found the problem. I was really lucky & just happened to notice that one of the wire pins had backed out of the plastic junction box just enough to lose contact. If my eye hadn't accidentally noticed that pin barely sticking out the back, I would have probably had to trace out the entire ignition system wiring.

I love it when something that appears to be a big problem, ends up being a simple fix.


J.

[Joe D.]

That's some great troubleshooting!

[J6G1Z]

That's some great troubleshooting!

Actually it was pure luck. If something funny hadn't caught my eye, I may have never figured it out.

J.