I have a 1989 750 and I have been trying to start her for some time. I've spent alot of time on this and I am completely stumped.
New Battery and new plugs,
Approx 14 volts at the battery terminals, fully charged. I'm getting almost the same reading from the battery to the coils with the ignition (key) off. When I turn the key it drops to approx 12 volts. (from the battery to the coils)
The coils test good as per the workshop manual with regard to resistance.
The signal generator also is with spec as per the workshop manual with regard to resistance.
I've had the CDI tested in another bike and its good also.
I still cannot see a spark visually but I'm not sure how difficult this is, or how dark it needs to be for me to see it. But I've covered it and got quite close and cannot see any spark.
Everything electric works, indicators lights and it cranks over very strong.
Just had the best start to the summer here in Norway and I've been on 4 wheels:
Please someone must have some Idea that I'm not seeing. In the workshop manual the only 2 trouble shooting ideas for no spark is to replace the CDI or the signal generator.
Any Idea would be super appreciated