Hello my first time here. Okay my atv is slightly modified (The big three upgrade) but also has an auto tuner installed. As Im riding the atv it will shut off but will not start back up. It will turn over but no ignition. However it will start after rolling it for a little bit but have trouble starting for a bit and stalls. What is going on here?

 

I had this same problem and couldn't figure it out. When I brought it into the shop The it was simply the air connector/valve on the top of the carburetor was leaking air. They replaced it and then made sure it was tight. That should fix it. Good luck man

 

You mean the throttle body?

 

Nothing comes up in google what you said "air connector/valve". What does it look like? Thanks

 

Its the throttle body, sorry for the confusion. Theres a small chance you don't even need to replace it, it could even just be loose.

 

I think I found the issue, the check engine light gave me code 33 (Faulty Ignition Coil). So I took it off and noticed that the negative terminal connector was corroded. Haven't put it back on yet but most likely the culprit.

 

UPDATE.....Found the real issue, the rpm monitor was shorting out the ground lead. I took it off and fires right up.