Gradywhite3535
Chief Petty Officer
- Joined
- Dec 29, 2012
- Messages
- 480
I have 2 engines on my boat and i decided to take the 1975 Johnson 6RL75R. It's the 6 hp model. So I got it home today and did a spark check and compression test. When I did the spark check the spark was mostly orange. Does that mean a weak or bad spark. And when I did the compression test it was 30 psi on both spark plugs. Is this a good amount or too low for a 6hp? Thanks