Compression on a 1991 70hp Johnson???

[roger3645]

In the near future I'll be looking at 17' aluminum boat with a 1991 70hp Johnson outboard. This will be my first Johnson motor, all other boats have been powered by mecury. What would decent compression numbers be for this motor. And all should within 10 - 15% of each other ???

 

[DJ]

Re: Compression on a 1991 70hp Johnson???

And all should within 10 - 15% of each other ???

Yes, no different than anything else.

I would look for numbers over 100.