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By digrig
Hey everyone,
I’m having an issue with my 2021 Polaris Sportsman 570 – the engine keeps stalling after running for about 10–15 minutes. I’ve checked the air filter, spark plug, and fuel lines, but can’t seem to find the root of the problem. It starts up just fine, but then loses power suddenly.
Has anyone experienced a similar issue with this model/year? Would appreciate any advice or troubleshooting tips you’ve tried that worked. Thanks in advance for your help!
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By BillR94
I suspect this bike may have a bad speed limiter. The part number for is 4060204. I found this one on ebay but it has a part number that is 1 number different. (4060203). It has the same LR44-2 and says its for a 94 Magnum 425. Will this one work on my machine or do I absolutely have to have the 4060204? Your advice would be appreciated. Thank you
https://www.ebay.com/itm/326817022020?_skw=Polaris+speed+limiter+LR+44-2+4060204&itmmeta=01KF74RJDTYSQNAP11RNJHCRQQ&hash=item4c17d00044:g:IRYAAeSwfO1o7eFo&itmprp=enc%3AAQALAAABAO7PUuNWmJ%2B%2BUShgI9tQz%2Fp%2FPZwHFglDA7v--td9bxBP05QJN8jM6A97tWp7MfGdxP%2Fo9vRaFVpxhV0%2B86jsb4r1WPwXcF%2FLp132KMxBdyLCSwt%2FtSvxD4%2B2RhmZOKzQYHqX0tNsUT1cqqf1TT0TxauZTveHSqgA8UlZ3Qb3ALQlGIIFiaiXjpWNHwRUnyNGKvI5gDVtbwv7eIrkF8m42Bvb75n4dwn0jTJyLPLZveJMPDcjlyHha0wv1Q1JbVnF%2FxxfSi2ros0dbFHRLsBpdH0TT9LNoSTtump3ZDZ%2BA9xqfasfcwHrDJzDX2BDC9Jx8NZeI%2B3mcvOJ7H8qPpwW7OY%3D|tkp%3ABFBMhKfi5Plm
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By BillR94
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
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By Kurt Reiser
My quad will not run with the airbox hooked up Will not go past quarter throttle as soon as you unhook the tube at the back of the carburetor it runs great does anybody have any ideas what it could be I have a bad fuel pump one on the way can that cause the quad to run like that
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By Ironworker709
I have Grizzly 700 that has been pretty much totaled out in a bad accident, but it will still run and drive good...
Will this engine swap into any of the Yamaha UTV's like thr rhino and Viking 700's?
Was just going to sell it as is for a engine for someone who needs one pretty cheap..but been thinking about getting a UTV for the family and maybe find one with a blown engine cheap and swap it out
I already an excellent shape 2001 Big Bear 400 4x4 for us..but kinda been looking for a good used UTV for us and the grandkids on our property to play with
Not sure of the year..i can't remember what year it was when i picked it up for a buddy a few years ago..he went to jail after he totaled this thing and told me to pick up a few things at his house he was renting and just keep them for myself since he owed me a bunch of money before the landlord sent them to the dump...
The first picture is when i went and picked it up for him..second is how it is now..frame is all twisted up and plastics are fubarred..going to sell the rims and tires.they stick out way too wide on my Big Bear
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