1990 Johnson 15HP. Why would I be going through plugs every other outing?

[boobie]

What kind of fuel are you using ??

 

[boobie]

There is a reason for asking about the fuel ?

 

[btkees]

No Title

I use 85 Octane, 50:1 oil mixture, and sea foam with every gas fill up. I took the boat out Friday and the thing ran like a charm with the new plugs...go figure. Plus I caught my second PB LMB
LIVE AND LEARN.

 

[oldboat1]

think I would get off the sea foam habit now. IMO, sounds like you don't need it -- would let it run on the normal mix.

 

[boobie]

Do you buy your fuel at the same gas station every time ??

 

[btkees]

Boobie, I usually do fill up at the same spot. Oldboat, just curious as why I should stop using the sea foam?

 

[oldboat1]

It's unnnecessary to use solvents continuously in a clean, good running engine. Fresh gas and a good grade of 2-cycle oil is all that is needed -- cleans and lubricates.

 

[boobie]

Just for the heck of it fill up at a different spot for awhile and then get back to us. Also the brand.

 

[ondarvr]

87 would be the correct fuel. Seafoam isn't hurting anything, but it's not really helping either, it's best to eliminate all the variables when possible.