Stock compression reading???? - Polaris RZR Forum - RZR Forums.net
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post #1 of 11 Old January 9th, 2014, 08:13 PM Thread Starter
 
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Rzr Icon Stock compression reading????

Does anyone know the stock compression psi numbers? What is the acceptable range?

I just tested my RZR 1K piston compression, Reading 150 psi - it seems low compared to other RZRs such as the 800 and 900, but have no reference to compare in relation with the 1K stock engine.

TKS
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post #2 of 11 Old January 10th, 2014, 08:55 AM
 
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Re: Stock compression reading????

Have somebody tested the Compression of the XP1000 stock ? I have and both cylinders have 150 PSI
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post #3 of 11 Old January 10th, 2014, 09:41 AM
 
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Re: Stock compression reading????

I looked through the service manual and I can't find any specs or procedures for a compression test, only a leakdown test. My guess is with the electronically controlled throttle body the butterflies are not opening during cranking which would cause a low reading.
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post #4 of 11 Old January 10th, 2014, 09:50 AM
 
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Re: Stock compression reading????

Yes that's a possibility I'll have to find a way to open throttle to make the measurement again Thanks
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post #5 of 11 Old January 10th, 2014, 09:56 AM
 
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Re: Stock compression reading????

It's just a guess but maybe worth a look.
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post #6 of 11 Old January 10th, 2014, 11:00 PM
 
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Re: Stock compression reading????

try to dissable fuel or spark and crank while stepping on throttle
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post #7 of 11 Old January 10th, 2014, 11:09 PM
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Re: Stock compression reading????

The dealer is having too on mine now!!!!


Sent from my iPad using RZRForums.net

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post #8 of 11 Old January 12th, 2014, 06:57 AM
 
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Re: Stock compression reading????

Polaris told my dealer..225psi..i had just over 160..it comes apart next week..
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post #9 of 11 Old March 20th, 2014, 01:14 AM
 
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Re: Stock compression reading????

Couldn't you turn the key on, mash the gas to full throttle, and crank them over for 7-10 revs to get a compression #?

Joe Reif Jr. Paola, Kansas
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post #10 of 11 Old March 20th, 2014, 07:41 PM
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Re: Stock compression reading????

Govolhg

I am not Shute how much help this is.
My xp1k turbo reads 205 psi on both cylinders, throttle fully open during test.
It is a stock engine by the way.

Here is the catch. I had the throttle body assembly off when I did the test a while back, as I was getting ready to install my billet intake manifold set up. I have not tested with everything in tact. If someone finds it helpful, I can take a reading in assembled form.
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post #11 of 11 Old March 20th, 2014, 09:14 PM Thread Starter
 
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Re: Stock compression reading????

Thank you all for your help.

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