1989 johnson 90hp v4 compression

[roseville20]

does anyone know what the normal compression would be for this motor? I bought the manual but am unable to wait for it. anything helps.

 

[rustybeater]

Re: 1989 johnson 90hp v4 compression

I have a 1993 90hp v4 and my good cylinders are at about 115, but from what i am reading they just need to be with in 10% of each other.

 

[johnson89]

Re: 1989 johnson 90hp v4 compression

i HAVE A 1989 90 also mine are 115-118...checked about 6 months ago

 

[boobie]

Re: 1989 johnson 90hp v4 compression

There are no published specs on compression. It's the variation between the cyl's that count.