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1995 Polaris Sportsman 400 4x4 Honed Cylinder
By
bren7176, in Polaris ATV Forum
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By Wayne Carson
Has anyone found a good replacement for the stock cooling fan? Mine is going out and OEM parts are outrageous. Polaris sportsman HO XP 850
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By Outkast7222
Had a spark-plug break off, had to pull the head to get it extracted. Where the heck is the timing mark on the crank? Do I need to pull the stator or flywheel to find it? When I pulled the head I had the mark on the cam lined up pretty good but I cant remember if it was perfect and don't want to reassemble a tooth off and have to go back through the bear of pulling this thing back apart.
Thanks guys!
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By Budman
After purchasing a lightly used 2018 570SP (300 miles on it) I noticed that the display was flashing on and off. I remember reading awhile back that this was a common problem on the 18 model. I can't remember what the fix is. It also turns over slow even though the battery is charged. Anybody know what the fix is on this issue?
Thanks
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By Mike Iadonixi
Hi guys need help getting a part for my son's 2000 trail boss its a mount lower caliper axle they seem to be discontinued any ideas thank you
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By Bigobuck
Hello,
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Similar Tagged Content
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By Brian Sosebee
I just rebuilt my 03 sportsman 400. Put everything back together added oil per the manual. Pinched off the oil tank vent line 2" away ran for 45 seconds then cut it off. Check oil level and it was still way high so I wasn't confident that it primed so I did it again. Checked again and it's the same. Remove the oil filter and it is dry. I did the procedure again and the same results.
I'm worried to keep trying this as the only oil in the engine is what I used to lubricate the parts when reassembling the piston. The crankcase was drained as well.
I Removed the oil tank and checked all the lines for obstructions and the screen filter and the vent hose and everything is clear. I even pulled a small vacuum on the oil tank while it was pulled off to make sure there were no leaks. The dipstick cap was on tight so I'm not sure why this thing is not priming.
Anyone have any suggestions. I thought about pre-priming the oil lines from the oil tank to the crankcase to hopefully help the system prime. I'd like to be able to add some oil to the crankcase to so I wouldn't feel so bad about running the engine for another 60 seconds without oil. I dropped just a little bit of oil in the spark plug hole to help condition the sleeve right now.
What do I do? Anyone had or heard of an oil pump failure on these. Btw oil pump is working fine before I did the top-end rebuild and the oil pump was not touched.
Please help!!! Thanks all for any and all help.
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By bren7176
What would be the compression on a 1995 Polaris sportsman 400 4x4 ?? Have one in great shape plastic is almost like new and the engine only has 90 psi which I figure is Capulet ...
brendan
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By colin james
2012-2014 Sportsman 400/500 factory service manual
View File This is the factory service manual for multiple models of the years 2012-2014 sortsman 400/500 including hd edition's.
Submitter colin james Submitted 08/13/2019 Category Polaris ATV
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By colin james
This is the factory service manual for multiple models of the years 2012-2014 sortsman 400/500 including hd edition's.
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By Resurgence Small Engine Inc.
In this video, Jonathan describes how he cleaned a Nikasil plated cylinder.
Aluminum cylinders are often coated with a harder material such as Nikasil (Nickel Silicon Carbide). Over time, the softer aluminum of the pistons can rub off onto the cylinder. When rebuilding the top-end, this should be cleaned off.
This can be done using hydrochloric acid which reacts with aluminum to produce hydrogen gas and aluminum chloride, which washed off with water. Since Nikasil is resistant to corrosion, it is undamaged and protects the cylinder during this process.
Here is the chemical reaction:
2 Al (s) + 6 HCl (aq) → 2 AlCl3 (aq) + 3 H2 (g)
Resurgence Small Engine Inc.
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