86 250r won't hit powerband

[Banshee_killer]

So I was driving one day and it started missing terribly so I drove it in my shop and checked out the wiring and come to find out most of the electrical was held together by electrical tape and it being twisted together. So I found my wiring diagram and soldered and redid almost everything and I got to driving it and it fixed the miss at the lower speeds but now it won't hit the powerband. So I did some research and found a few things (jets, bad reeds, cdi high speed relay) I know the jetting is right because it would hit the power band previously to this electrical problem. The reeds are carbon fiber boysen but I have not checked if they are cracked. So I was wondering if it's a crazy idea that my Cdi could be bad? The coil is ok I checked the ohms. I found a cdi on eBay for $15 brand new. Is it worth trying it out?

[newby200x]

From my experience, aftermarket CDI's are usually the culprit when it comes to not being able to open up fully. My 85 would start and idle fine, but could never make it past 1/3 throttle. Also, the spark advanced too early, making the kick start pop back and nailing you in the chin. Bought a good used CDI and everything was cured.

[Shawn Powell]

For 15$ to check the CDI isn't a bad idea. But I wouldn't take off into the desert with a cheap Chinese CDI. If that fixes it I'd buy a ricks electric CDI or a upgrade from the newer cr250.


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[Banshee_killer]

If I do find out the Cdi is the problem I plan on getting a ricks cdi but I thought it was worth. Shot for $15

[yaegerb]

Get an OEM CDI....aftermarket CDI's are junk. With patience, you may even be able to find a NOS. To check your CDI give it a couple good taps with the handle end of a screwdriver. If the bike comes back to life its likely your CDI. Unfortunately they are solid state and not able to be rebuilt.

[Banshee_killer]

Are the Ricks cdi any good?

[Banshee_killer]

I saw on YouTube where this guys put his Cdi in the oven to remove any moisture so I'll try that

[roostin atc]

I don't think I'd put it in the oven. Rice would have the same effect. Just buy a new cod. They are cheap and plenyfull.

[yaegerb]

This is your best option.

http://m.ebay.com/itm/NEW-OEM-CDI-UN...%257Ciid%253A1

[jb2wheels]

When I bought my 85 it had similar symptoms - never seemed to "clean out".
The stator was barely in the low range of spec.
I friend with 250R experience told me the they're rather sensitive and stators at the low end have given him problems.

I replaced my stator and it's run great ever since.

[Banshee_killer]

Hmmm I'll look into different stator. How do you test it

[Banshee_killer]

How do you go about testing the stator? I was riding today drove about a mile and a half and it shut off on me and when I could kick it over It would only pop once or twice. I looked at the spark and it looked more orange than the usual blue. Any ideas guys? Cdi? Stator? Coil? Any help is appreciated!

[fieldy]

Rick's electric can test them for $15 dollars. The manual and a multimeter can also provide some troubleshooting information.

[Banshee_killer]

Are the aftermarket stators any good or is oem the way to go

[yaegerb]

How do you go about testing the stator? I was riding today drove about a mile and a half and it shut off on me and when I could kick it over It would only pop once or twice. I looked at the spark and it looked more orange than the usual blue. Any ideas guys? Cdi? Stator? Coil? Any help is appreciated!

Post shutting off, have you tried to tap the CDI yet with the end of a screwdriver as suggested above?