normal compression on Yamaha XL760

[m.colley]

Whats considered normal compression on the XL760 ?? I'm looking at one and want to know what to be looking for before I bite off a repair bill thats hard to swallow..


Martin

 

[Dennis]

Normal compression is 150 psi.

 

[m.colley]

Thanks Dennis.. I had heard that 150 was normal but wanted to verify..

 

[Seadoobuddy]

According to a Yamaha manual that's for my nephews skis most 650 cc are either 119 or 142 ....all other models are 134psi.
This is for ski up to 1996.

What yr is your Yammi XL760?

 

[Dennis]

The first year for the XL 760 was in 1998. Yamaha started using the 760 engine in 1996. Probably found in the RAIDER. :cheers:

 

[Dr Honda]

Most of Yamaha's "Recreation" engines are in the 135 range.

 

[m.colley]

According to a Yamaha manual that's for my nephews skis most 650 cc are either 119 or 142 ....all other models are 134psi.
This is for ski up to 1996.

What yr is your Yammi XL760?

I guy here local has a 1999, claims he had compression checked and had 140 & 145. I know on most seadoo ski's that would be pretty decent..

Martin