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Need help with 2004 Polaris Sportsman 400 PLEASE

2K views 2 replies 2 participants last post by  Reeder2626 
#1 ·
I was having trouble getting a spark to my ATV. I replaced the Pickup Coil, Stator, and Rectifier. After that I started to get spark, but it is not running right. It will start on full choke with the throttle all the way in, but will not rev up. It acts like it wants to at times. If you let off the throttle, it will idle, but as soon as you hit the gas it will backfire out of the air box and die. I have checked the carb and it seems clean..Thoughts?
 
#2 ·
Check the ETC

Here's a vid on how:
 
#3 ·
2004 Polaris Sportsman 400

We checked the ETC. Also the the plug was replaced and that was not the problem. Could it possibly be the CDI box? We first replaced the pick up coil and stator...no spark. Then the rectifier and it got spark but not running right.
 
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