compression and altitude

grifff

Truly XSive

Join Date: Jul 2004

Posts: 117

Location: Cedar City, Ut.
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#1

compression and altitude

08-05-2004, 07:52 AM

I'm at 5900 feet elevation. I have heard that the compression would be lower at these altitudes. My compression is testing 120psi on all 4. Is there a formula for elevation in testing compression?
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skids

XS-XJ Super Guru

Join Date: Jul 2002

Posts: 5033

Location: Florissant, CO, USA
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#2

08-05-2004, 10:16 AM

That compression is good. Don't worry about it.

Skids (Sid Hansen)

Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.
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grifff

Truly XSive

Join Date: Jul 2004

Posts: 117

Location: Cedar City, Ut.
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#3

08-05-2004, 11:46 AM

skids

Looks like your from colorado. Do you get these same kinda compression readings?
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Shuriken

XS-XJ Guru

Join Date: Jul 2002

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Location: Southwest USA
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#4

08-07-2004, 05:17 PM

Read this.

1985 Yamaha VMX12n "Max X" - Stock
1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

Formerly:
1982 XS650
1980 XS1100g
1979 XS1100sf
1978 XS1100e donor
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