1993 Johnson Oceanrunner 150 Compression Test

[Big Fish Billy]

Wondering what the compression should be on this engine, does anyone know the exact numbers, heard all kinds. Thanks, Bill

 

[boobie]

There are no specs on compression. All should be with in 10 % of each other. How's the motor run ??

 

[Big Fish Billy]

It runs real good, the owner said 48kph, we went 38 without trying, definitely overpowered. Just wanted to know what the spec was....heard 100 on the right bank 90 on the port bank, so 95 all around is fine I guess..........

 

[boobie]

Do a good decarb on it. Won't hurt.

 

[dingbat]

The boat is not over powered....slug it out with a following sea for a while and you'll wise you had more.

 

[Big Fish Billy]

Will do on the decarb, not the following sea.........

 

[boobie]

Smart man !!!!