Polaris Jet Ski Engine Running Issue

robbsracingengines · 08-13-2012, 12:37 PM

Did you happened to check the compression on both cyclinders ?
Ive seen several of those older machines lately melting down a piston.

AC2717 · 08-13-2012, 12:43 PM

how to check on the piston, it is 3 cylinder, when looking in the plug holes, I see movement in all three cylinders when dry cranking

codeman671 · 08-13-2012, 12:47 PM

Quote:

Originally Posted by robbsracingengines

Did you happened to check the compression on both cyclinders ?
Ive seen several of those older machines lately melting down a piston.

The 780 is a 3 cyclinder.

08-13-2012, 12:43 PM	#2
AC2717 Senior Member Join Date: Apr 2007 Location: Maynard, MA & Paugus Bay Posts: 2,582 Thanks: 755 Thanked 355 Times in 267 Posts	how to check on the piston, it is 3 cylinder, when looking in the plug holes, I see movement in all three cylinders when dry cranking __________________ Capt. of the "No Worries"

08-13-2012, 12:37 PM	#1
robbsracingengines Member Join Date: May 2011 Posts: 36 Thanks: 0 Thanked 3 Times in 3 Posts	Did you happened to check the compression on both cyclinders ? Ive seen several of those older machines lately melting down a piston.