1999 Mach Z - Snowmobile World : Your #1 Snowmobile Forum

RDN_POLARIS · 01-09-2005, 02:14 PM

My 1999 Mach Z shows good compression on all cylinders....I am fouling plug after plug.....My mechanic did a leak down test on it and says I need piston and rings.....If this is true, why is my compression showing good on all cylinders??

Thanks

mr670 · 01-09-2005, 06:52 PM

A clyinder leak down test is by far a more accurate test then a comp test. What were your compression readings??

RDN_POLARIS · 01-10-2005, 01:30 AM

Quote:

Originally posted by mr670@Jan 9 2005, 07:14 PM
A clyinder leak down test is by far a more accurate test then a comp test. What were your compression readings??

[snapback]386722[/snapback]

135 lbs straight across