Compression - ArcticChat.com - Arctic Cat Forum

XFR/Firecat/Sabercat Regular 128" XF / Firecat/Sabercat chassis

 
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post #1 of 7 Old 02-08-2013, 09:29 AM Thread Starter
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Sled: 2003 F5, 1995 ZR 580, 1974 El tigre 340
10-11 Mileage: 800
09-10 Mileage: 100
ATV: 250 4x4
Compression

What should compression be around for a 2003 F5 with new pistons, rings seals and crank?
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post #2 of 7 Old 02-08-2013, 09:35 AM
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im not 100% sure but i think arround the 140 range or more...im sure someone will give you a better answere before long

-06 firecat F7 snopro: MBRP can, Studded...pretty much stock
-08 f5: Stock
-2012 can am commander limited
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post #3 of 7 Old 02-10-2013, 06:40 PM
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Sled: 2004 F5
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My 2004 is 117 and 115 psi since new.
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post #4 of 7 Old 02-11-2013, 02:04 PM
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It really depends on the gauge. Over 110 is good and not more than 10% difference between cylinders. My F7 with a brand new top end showed 125. Theres guys out there saying they have over 150. (Which I dont buy because 150 is really hard to pull over)
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post #5 of 7 Old 02-19-2013, 09:27 AM
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Originally Posted by Sebastian F7 View Post
It really depends on the gauge. Over 110 is good and not more than 10% difference between cylinders. My F7 with a brand new top end showed 125. Theres guys out there saying they have over 150. (Which I dont buy because 150 is really hard to pull over)
Bull I bought mine with 145

my the wind always be at your back
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post #6 of 7 Old 02-19-2013, 10:38 AM
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I have always been told the actual measurement isn't as important as having them both the same (at least really close). obviously you don't want it too low but like sabastian said every gauge is different so as long as they are close to the same in each cylinder you should be good.
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post #7 of 7 Old 02-19-2013, 12:32 PM
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Sled: 15 XF 6000,14 XF 7000,11 XFR 800 LTD
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From brand new to when it had just over 2k miles mine was pretty consistent at 125 on both. And yes the guage matters...mine is a snap on and my buddies is an off brand bought from Autozone. His guage indicated my engine had 140 psi!
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