08-25-2013, 03:13 PM
Last year running ethanol in my Coleman I was using Staybil marine formula. I found that about every 50 miles I had to pull the spark plug and clean it. Last year I had over 250 miles on that motor.
On my last trip last year The motor quit me two times and I wondered if I was going to get back. When I knew I was done for the year I did my oil changes and changed the plug. The spark plug had a brown varnish like crud that wouldn't come off. I looked into the cylinder and it had the same brown crud. After reading and watching a lot of video's I contacted some boat mechanics. They all said the same thing ethanol is poison for an outboard, and the outboards with a tank are the worst.
Starting this year I have used non ethanol gas only. I never had a single hiccup this year, not one. I did clean the plugs on both motors in July to see how they were doing. I still use the marine grade staybil just in case. Both motors looked good. My Johnson had no brown varnish and the Coleman had actually cleaned up a bit.
Since I was still using the Staybil the only difference was the no ethanol gas. And this year I had close to double the number of miles as last year.
I'm not sure what you mean (Do they have ethanol in NZ?)
Ron
[signature]
On my last trip last year The motor quit me two times and I wondered if I was going to get back. When I knew I was done for the year I did my oil changes and changed the plug. The spark plug had a brown varnish like crud that wouldn't come off. I looked into the cylinder and it had the same brown crud. After reading and watching a lot of video's I contacted some boat mechanics. They all said the same thing ethanol is poison for an outboard, and the outboards with a tank are the worst.
Starting this year I have used non ethanol gas only. I never had a single hiccup this year, not one. I did clean the plugs on both motors in July to see how they were doing. I still use the marine grade staybil just in case. Both motors looked good. My Johnson had no brown varnish and the Coleman had actually cleaned up a bit.
Since I was still using the Staybil the only difference was the no ethanol gas. And this year I had close to double the number of miles as last year.
I'm not sure what you mean (Do they have ethanol in NZ?)
Ron
[signature]