Looking at a 900 SS/SP

D-Day · #1 (**permalink**) 10-20-2007, 03:09 AM

Does anyone know what a compression test should read for a '96 900 SS/SP?

Thanks in advance.

BrianK · #2 (**permalink**) 10-22-2007, 01:37 AM

Totally seat of the pants, but I'd say at least 150 lbs, with no more than a 10% difference between cylinders.

I've been meaning to check my 97's compression (but NB, I have 11:1 compression pistons); if I manage to get around to that I'll post my results. - BrianK

BrianK · #3 (**permalink**) 10-29-2007, 02:45 AM

Tried to check the compression today, but I guess Ducks got some kinda funky plug sizes, cause my compression gauge (admittedly, a cheapo from Harbor Freight) didn't have the right size screw-in adapter. Tried it with the rubber plug you-hold-adapter but it blew right off the plug hole despite best efforts....sorry!

headstud · #4 (**permalink**) 10-29-2007, 03:38 PM

I'm not sure if that bike uses 10mm plugs but if so Snap-On has a hose that fits.