2010 Sportsman 550 x2 EFI Valve Setting - Polaris ATV Forum
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post #1 of 12 (permalink) Old 10-07-2019, 04:15 PM Thread Starter
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2010 Sportsman 550 x2 EFI Valve Setting

Hello Everyone,

I just recently bought a 2010 Sportsman 550 x2 and was looking into setting the valves at my father's recommendation (and the manuals (about 140hrs on the machine)) and in looking around I haven't really seen anything on how people are doing this process. I'm aware of what the process is in terms of where to go on the machine and that the valve clearance should be somewhere around a 6000th of an inch (correct me if I'm wrong) but in terms of what the best way of getting the engine on that third stroke TDC or how crazy accurate you need to be on this whole process. The other thing that has been mentioned is there might be a casket for the valve cover and in my diagram research i haven't seen anything that looks like a gasket.

Basically I'm looking for any guide information for working the valves and if there is indeed a gasket that I should look at ordering before I tear into the thing?
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post #2 of 12 (permalink) Old 10-07-2019, 06:38 PM
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You need a service manual.
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post #3 of 12 (permalink) Old 10-07-2019, 06:55 PM Thread Starter
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Would anyone have said service manual that they would be willing to share?
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post #4 of 12 (permalink) Old 10-07-2019, 07:14 PM
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Quote:
Originally Posted by Rockoversoul View Post
Would anyone have said service manual that they would be willing to share?
I don't have one. Maybe someone else on here might.
Here's a link to a relatively cheap one for download. Best I can do, sorry.

https://servicemanualwarehouse.com/p...ervice-manual/
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post #5 of 12 (permalink) Old 10-08-2019, 06:53 AM
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Garage
I've got the same machine, maybe this will work for you:
https://drive.google.com/open?id=1ZS...CJtrTUSN1EB8OZ

(Too large to attach to post)
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post #6 of 12 (permalink) Old 10-08-2019, 01:12 PM Thread Starter
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Thanks for the replies gentlemen

I'll look at the document you provided KH42-X2 and see if anything makes a bit more sense.
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post #7 of 12 (permalink) Old 10-08-2019, 01:31 PM
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Originally Posted by Rockoversoul View Post
Thanks for the replies gentlemen

I'll look at the document you provided KH42-X2 and see if anything makes a bit more sense.
Looks like section 2.14 at pages 26 and 27 should get you where you want to be.
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post #8 of 12 (permalink) Old 10-08-2019, 06:23 PM Thread Starter
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I can't seem to find anything related to a gasket for the valve cover even in the engine schematics on Polaris's site (Unless I am missing something(or it doesn't have one)). Anyone have any knowledge as to what part or even part number would correlate to that?
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post #9 of 12 (permalink) Old 10-09-2019, 09:49 AM
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Number 17 in the picture below. Part number 3090204 O-Ring, Rocker Cover
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post #10 of 12 (permalink) Old 10-09-2019, 09:52 AM
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Its an o-ring so you could probably get by without a new one. You may want to replace it anyway just to be sure though.
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