Something positive for a change!

[basbalj288]

Usually when I post on here, I'm asking for help because my 76 Johnson 85hp isn't running properly and I'm trying to figure out what's wrong. . . This time though I have a question about how it got running so good. I had tuned up a new motor that I bought and tuned and tested just about everything on it. Well I took it out Sunday for the first time and it was running fine just not quite as fast as I knew it could about 26-8 mph. THEN all of a sudden while pulling a tuber I heard/felt something just give in the motor and in 2 seconds the boat climbed to 38mph!!! Something good for a change and it ran like that the rest of the day! Great surprise but does anybody have any idea what might have happened? I'm really just curious lol
Thanks guys n gals

 

[Fl_Richard]

Re: Something positive for a change!

Fouled pug cleaned itself and began firing - adding a third more power?

 

[basbalj288]

Re: Something positive for a change!

You know as dumb as it sounds I checked and tuned Everything but looked at the plugs and assumed they were fine because they didn't look too bad. That very well could have been it all along. I will change them all just for good measure!

 

[Rick.]

Re: Something positive for a change!

Go back and have a look. Your tuber might have fallen off the tube. LOL Good for you and I'll go with the plug idea cause nothing else comes to mind. Rick.

 

[basbalj288]

Re: Something positive for a change!

Yes I changed the plugs and its still running great so I don't know. I'm not complaining trust me. For once the boat gods were lookin after me

 

[tal]

Re: Something positive for a change!

Partially clogged high speed jets or perhaps timer base sticking? Make sure the timing advance linkage moves freely.

 

[emdsapmgr]

Re: Something positive for a change!

You may have only been running on 3 cylinders and the 4th one kicked in. Make sure none of the plugwires are touching ground, like the bottom two grounding on the two rear cowling latches.