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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 ButchM
Hisun 700 EFI. Replaced TMAP sensor had broken off . Fuel pump pressure 41psi. The only way I can keep it running (and runs fine) is to close off fuel return line.
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By dkgg5755
This thing came with a cheap aftermarket carb on it the problem I'm having is it won't start with choke installed into carburetor it will start and get run without it installed then bogs out after about 2 min run time I've checked timing , compression, checked valves for proper clearance , also did a smoke test for air leaks found none.
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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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By Sporpo
Have a 2018 Sportsman 850 SP with factory 26x10x14 rears and 26x8x14 fronts, and it is now time to replace them. So, is it reasonable to replace all four to now be the same size of 26x9x14? Replace with radials, of course, and at least 6 ply rated. And, can a 27" tire fit on the factory wheels? Thanks for any replys...i know this has been hashed and rehashed so many times, so thanks for all replys, and, yes, this bike has had a literal ton of cash put into it just to get it running again, and still needs some tinkering, but it will be a work bike, it is not a pleasure/recreational bike like it was intended to be... LOL
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