Home › Forum › Ask A Member › 1978 Johnson 75 hp Stinger stalls when throttled up › Re: 1978 Johnson 75 hp Stinger stalls when throttled up
Thanks for the advice all, I followed the script that Fleetwin gave m in that last post and I found a problem. I should have checked this a while ago but here is what I found: I checked the plugs and noticed some water in the bottom plug. I ran a compression test and got top 125, middle 125 and bottom was 0 but the tester had water in it. So I pulled the head off the tester and when I turn the motor over water shoots out. So cooling water is leaking into the bottom cyl. I had this same problem on a 1975 Hustler and I changed the exhaust cover gaskets and head gasket and it fixed the problem. But would the water in the cyl affect the compression test. I did the test a second time and got it up to 30 psi before it started leaking again. Where should I go from here?