Yamaha 225 Compression

[saintone]

Can someone give me the compression numbers for a 1995 Yamaha Saltwater Series 225. Thanks in advance for the help.

 

[JB]

Re: Yamaha 225 Compression

There is no spec, saintone. Guages and technique vary too much.

Typically, you will get over 100psi, but it isn't psi that matter (like in a 4 stroke engine), it is the comparison among the cylinders. They should match within 10%.

 

[saintone]

Re: Yamaha 225 Compression

There is no spec, saintone. Guages and technique vary too much.

Typically, you will get over 100psi, but it isn't psi that matter (like in a 4 stroke engine), it is the comparison among the cylinders. They should match within 10%.

JB, Thanks for the reply, looking to purchase this engine. All cylinders check out about 110-115.

 

[hurricane34]

Re: Yamaha 225 Compression

I know the motor you are talking about.Its from texas right? I was looking at that one to.But I got to sale the 1993 115 v4 I got right now.