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Posted

I have a 1998 Quad that was running almost perfectly and it started to drain my battery while parked last year.  When Started this spring it idled fine but had little power to drive the bike. I changed the coil and the stator and it is still running exactly the same as it was before. Has anybody experienced this issue or have any advice where to proceed?  The only electrical parts left to change is the ignition switch and the CDI Box. Thanks in advance for any help provided.

Posted

Your battery may be causing the problem. Is the electric start operating ?

You should check your charging system is operating correctly. Is it charging and regulating ?

An easy test to see if the charging system is causing the problem is to turn the headlights on and see if it will rev a little higher before it plays up. If turning the headlight on makes a difference, then it's your battery or charging.

Posted

battery is new so that is ok. It used to run better/stronger when I turned on the lights but now it runs the same no matter which selection the key is on. Will check the charging system further with my voltmeter and see what I get. 

Posted

I removed the voltage regulator/rectifier today and it appeared to have a spot on the back that melted and might have been shorting out.  I have a new regulator on order so hopefully that will fix the problem.

  • 2 weeks later...
Posted

I changed the voltage regulator/recitfier and the quad ran the same. The only thing I did not not change was the CDI.  I received the new CDI in the mail today. Installed it and it ran PERFECT.  Changing everything in the process was a pain in the rear but now I have all new electronics and the bike should last for another 20 years. 🙂

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