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Discussion Starter #1 (Edited)
My 05 wolverine was idling good but running terrible at all speeds above idle. I was sure it was a fuel problem. After much cleaning and adjusting, decided to swap some parts with my son's 03 wolverine.

-My carb actually increased the performance of his bike. I told him he couldn't have my carb.

-coil made no difference

-cdi box made no difference

-both bikes have had the parking brake limiter unplugged for years

-intake boot made no difference

So, I removed the plastic and started tracing wires looking for a pinch or bare wire. Wiring looks perfect.

Somewhere along the way while moving wires around, the bike will not start. Acts like it has jumped time, backfiring, kicking back.

So, I think the only component left is the pickup coil, stator. Never been into that before. Is this a big job?

The plug does make a spark, is there a way it could be firing at the wrong time?

Any advice is appreciated.
 

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could be out of time but it is rare. pretty easy to rule out though. stator and coils is not a big deal but order the new gasket and plan on an oil change when you do it (they are a wet stator) the no start symptoms sound like a vacuum leak. did you get the carb and boot back together correctly. your original sounds like it is possibly the hi speed pick up coil. i have never actually had my hands on a wolverine but have worked through a similar problem with a guy on here. ( you should go read his thread) either get a manual or download the specs and test the coils and stator before you replace them.
 

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Discussion Starter #4
Thanks for the suggestions.

I tried every combination of the carbs and boots on the other bike and have pretty much eliminated that as a problem.

It really seems out of time to me. I'll pull the flywheel and check the key, and try to test the stator and pickup coil.

With all the backfiring and such, should I check the cam timing? Could the timing chain have jumped?
 

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it could have jumped time but its rare without breaking something. check your valve lash as well, you could have a tight valve
 

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Discussion Starter #6
I finally got back to my wolverine. So here's an update:

-The flywheel key was sheared. Fixed that.
-The stator/pickup coil did not test according to specs. Got a new one.
-Also had a questionable intake boot, replaced that.
-Checked the timing marks and ran the valve clearance.

So, I got it all back together today and it started right up but cuts out and sputters just exactly like it did in the beginning. What next? I'm about out of ideas.
 

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green/yellow to brake. either unplug it or ground it, I forget which, one causes it to not run well to tell you parking brake is on.
 

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Discussion Starter #9
The parking brake switch has been unplugged for years. If you short it across it will limit rpm to like 1500.

The stator and pickup coil is replaced as an assembly which I did. Actually '95-'99 models had the 2 pickup coils, '00-'05 had one pickup coil.

Thanks for the suggestions, I don't give up easily, and this is way too nice of a bike to just junk it.
 

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does that have the vacuum slide makuni? if so look for vacuum leaks. or a plugged vent line on the carb. and check the slide diaphragm
 

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Discussion Starter #11
I checked the diaphram and vent tube and all seemed to be in good shape.

The float looked a little low, so I raised it a little and it ran great for a while. Then same thing with the cutting out.

I might raise the float a tiny bit more, maybe it's running out of gas now?

Seems strange that totally different problems will have the exact same symptoms.
 

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funny how that works sounds like you are onto the problem. just for grins blow out all of the ports in the carb again when you have it apart. another thing you might check is the petcock and vent cap. fill the tank to the top and put the lid on. remove the fuel line and make sure you have free flowing fuel a plugged vent can cause a vacuum in the tank and cause that as well
 
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