Polaris Sportsman 90 won't rev

Posted by BarnyardEngineering on May 23, 2020 at 13:20:28 from (66.67.62.199):

I got a "free" Polaris Sportsman 90 non-running to fix up for my nephew. It's a 2-stroke reed valve type engine.

Replaced the carburetor and reed valves. Now it starts and idles. Pulling the choke causes it to flood and die at idle.

Still won't rev up. Acts like it can't get fuel. It will start to rev, then bog down and die. Pulling the choke does not help. Overhauled the original carburetor and it's WORSE than the new one. Won't do a thing with that carb.

Starting to think this thing is cursed. I know my engine troubleshooting. This engine is not reacting normally. It has not reacted normally to any of the troubleshooting I've done.

Replies:

• Re: Polaris Sportsman 90 won't rev RusselAZ 21:44:48 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev P. Coltrane 19:18:18 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev TimV 18:46:41 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev BarnyardEngineering 17:49:29 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev Steve@Advance 17:15:00 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev neverfear 15:55:19 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev BarnyardEngineering 14:06:01 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev marloweg 13:40:27 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev svcummins 13:32:24 05/23/20 (0)
• Re: Polaris Sportsman 90 won't rev wore out 13:28:32 05/23/20 (2)
  • Re: Polaris Sportsman 90 won't rev uncletom 14:21:14 05/23/20 (1)
    • Re: Polaris Sportsman 90 won't rev 504 18:37:01 05/23/20 (0)

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