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Greetings to all. New to the forum, but not to ATVing. I started when they only had 3 wheels! Getting back into riding. Polaris 850. Too many bells and whistles, but what do you do. Scouting out places to ride legally now.
I picked up this ATV that had no spark. The previous owner said he was driving it and it died and would not start. He discovered it had no spark. He replaced the CDI and the coil with no luck. He got tired of it and I bought it. I replaced the stater and now it has strong spark. Now, it starts for a second or two then dies. It will not stay running. I have checked the timing and it is spot on. The valves are adjusted correctly. I see no warn issues with the cam. I put the original CDI and coil back on it. Same problem exists. Compression is at 65 psi (has decompression mechanism),
I took off the muffler in case the issue was clogged pipes. No change. I replaced the spark plug. No change. The carb was an aftermarket so I put a Niche carb on with no change. I bypassed the fuel pump and that did nothing to solve the problem.
I don't know if this is a carb issue or an ignition issue. I am looking around locally for an OEM carb to try out but not sure that will fix the problem.
Can anyone help me solve this problem. I am running out of ideas.
Thank you for your time
Bill
Hi all! I'm a new member from northern Saskatchewan. I plan on buying a new ATV and do some exploring in the Precambrian Shield/Boreal Forest this coming Spring.
I hope to learn as much as I can on here before I make a purchase.
Thanks.
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