CDI/electrical problem.

Post by **Sam-NI** » Sun Jun 29, 2014 10:12 am

Morning gents, I think I have diagnosed the electrical issue with my nc30. I had a very bad connection on the negative terminal of the battery, and popped the ign fuse in the fusebox. It was repaired, and still I got no spark. Ignition control unit was swapped. Sparked, and bike ran. Now, my concern is why did the original ignition control unit blow? Would a very bad earth do this? I don't want to pop my friends cdi recovering the bike to my house!

Post by **Speedy** » Sun Jun 29, 2014 1:47 pm

I'm not sure a bad earth would kill an ECU, but is the charging system ok? I think if that's overcharging the battery, it can take out the ECU as well as other components.

Post by **Morespeedvicar** » Mon Jun 30, 2014 2:42 am

Yeah deffo check the charging voltages like speedy says. it should be about 14-15 volts at 5k rpm, any more than that and theres something wrong with the reg/rec. Is the rest of the ignition system standard? ie not fitted with stick coils or anything?
Cheers
Ian

Post by **Sam-NI** » Mon Jun 30, 2014 12:47 pm

Getting 13.8v at around 5000rpm. Sounds about right?

Post by **Morespeedvicar** » Mon Jun 30, 2014 4:32 pm

Yeah sounds good to me, have you tried it with lights on and off? Maybe worth measuring the resistance of the coils too.

CDI/electrical problem.

CDI/electrical problem.

Re: CDI/electrical problem.

Re: CDI/electrical problem.

Re: CDI/electrical problem.

Re: CDI/electrical problem.