Quote:
Originally Posted by pjed
Well it runs. Just for sh*ts and giggles I threw on the old spark plugs and it fired right up. I checked the gap on the new plugs I installed and they were .031 and .033...guess one was a tiny bit on the plus side but I would think it should have still run. Don't think I've ever hear of anything being wrong with new plugs  |
There have been caveats about certain plug brands for pre-gen, but yeah you're right, I have not heard anything about new-gen plugs:
https://faq.ninja250.org/wiki/Changi...rands_to_avoid
Hmmm interesting... I use NGK CR8E plugs @ 0.032" gap on my race bike without any issues. You may have sub-standard ignition-system.
- Might want to measure power at coils with key-ON.
- Also measure resistance of primary & secondary windings on coil.
- Measure resistance of hi-ten wires.
- Check out Jim's post about coil-polarity:
https://www.ninjette.org/forums/show...45#post1281145
What brand & model plugs were old ones that's working?
What brand & model plugs are new ones that didn't work?
What gap did you end up with where they worked?
Could be new plugs had been abused and dropped? Darn UPS!