Yamaha 150 Compression

Del Coronado

Cadet
Joined
Feb 26, 2009
Messages
8
I am new to large outboards. Looking to purchase a boat with a 2000 150 Hp. Yamaha. Compression tests show #1-125, #2-120, #3-125, #4-125, #5-125, #6-124. Do these numbers look good and was this a dependable engine for that year? Thanks much for any into.
Del Coronado
 

EAVES

Petty Officer 3rd Class
Joined
Feb 28, 2009
Messages
75
Re: Yamaha 150 Compression

All cyls. seem to be good at 120+ and all are pretty equal
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Yamaha 150 Compression

Equal is what matters most. With a <5% span you are in very good shape.
 
Top