CDI may be bad

[m1caffee]

I've been fixing my ignition system for a while. I've replaced the coil, solenoid, and ignition switch. Still not getting a spark. The manual tells me to ohm out the cdi from the white/green wire to the red wire. It completely open. I also ohmed out the blue to yellow and it is open. Does that mean I need to replace the CDI? I hope not, that thing is pretty expensive. I want to have all my bases covered before I replace it.

 

[1998yamahawarrior]

what you need to do is ohm your stator. they are common to go out, where as cdi's dont normally. In fact the only true way to test for a bad cdi is get a known good one and see if it fires.

 

[coryv4]

what you need to do is ohm your stator. they are common to go out, where as cdi's dont normally. In fact the only true way to test for a bad cdi is get a known good one and see if it fires.

even if your stator checks out on the meter find a buddy with a working stator and try his ive had many stators test good but actually cause the problem

 

[bryanquad]

I've been fixing my ignition system for a while. I've replaced the coil, solenoid, and ignition switch. Still not getting a spark. The manual tells me to ohm out the cdi from the white/green wire to the red wire. It completely open. I also ohmed out the blue to yellow and it is open. Does that mean I need to replace the CDI? I hope not, that thing is pretty expensive. I want to have all my bases covered before I replace it.

what year is your quad maybe i have a cdi and i would sell it for 20 if you pay for shipping to

 

[m1caffee]

Bryan it's a 1990 350. Do you know how to check the stator. The manual only tells you how to test the cdi magneto coupler, or is that the same thing.

 

[1998yamahawarrior]

What manual do you have a paper version or the downloadable one

 

[m1caffee]

The download yfm350 warrior service manual