2 stroke oil question

[bass or bass ?]

I have a question for anyone with more 2 stroke knowledge than I. When I was filling my fuel tank ,I mistakenly added 1 pint more 2 stroke oil than necessary. Would this have caused my motor problem on Saturday. I had started the motor at home before I left and it started and ran fine, but after adding fuel and the 1 pint too much oil it was a real bear to get started at the lake, didn't really run well, and finally shut down and wouldn't restart. It would fire for a second on starting fluid, but then die. I have added 5 gallons of gas , so now the mixture is correct, pumped out the fuel from the fuel lines and am going to replace the spark plugs. Think that'll solve my problem? Happy fishing.
~B.A.S.S.~N.A.F.C.~BoatU.S.~N.R.A.~

 

[kenmyfam]

Re: 2 stroke oil question

How much was in there with the pint too much ??? no issue with any lubrication problems but you may have oiled things up somewhat. An extra pint in 20 gallons should be no issue. An extra pint in a couple of gallons is something else.

 

[bass or bass ?]

Re: 2 stroke oil question

Sorry , not enough info for you. This is an 18 gallon tank. The motor is a 1967 Evinrude Starflite 80 hp. Any further advice is appreciated.
~BoatU.S.~B.A.S.S.~N.A.F.C.~N.R.A.~

 

[samo_ott]

Re: 2 stroke oil question

I wouldnt think 1 pint in 18 gallons would be an issue but it sounds like it was. Pull the plugs. what'd they look like?

 

[kenmyfam]

Re: 2 stroke oil question

Sorry , not enough info for you. This is an 18 gallon tank. The motor is a 1967 Evinrude Starflite 80 hp. Any further advice is appreciated.
~BoatU.S.~B.A.S.S.~N.A.F.C.~N.R.A.~

And did you fill the tank ???

 

[bass or bass ?]

Re: 2 stroke oil question

Yes I had just finished topping off the tank. I pulled the plugs and they were dry and a nice light brown color. My mechanic said over the phone that I have other problems, that the extra pint of oil would not have caused the engine to stop runnung and not restart. This motor has been consistantly unreliable. Always with this problem. Last time he told me it had water and contaminants in the gas. I've been using Sta-Bil marine stabilizer. This is only the second tankful since I drained and inspected the tank. It is clean with no rust inside. I had been using regular Sta-Bil before they released the marine formula. This motor is a 1967 Evinrude Starflite 80 hp. I had the motor overhauled when I bought the boat two and a half years ago.

 

[AguaSki]

Re: 2 stroke oil question

If you had water and contaminants in the gas, then you need to do more than just drain the tank. The Stabil keeps good gas from going bad, but it will not fix bad gas and other fuel related problems. Even boats in the dry AZ climate are prone to water build up in the tank from condensation. I say this from personal experience and my own costly fuel problems last summer. I bet your problems will go away if you replaced all your fuel lines, rebuilt your carbs, drained your tank again, and added a good 10 micron water separating filter. You can keep using Stabil after you overhaul your fuel system and you should not have any more fuel problems.

By the way, it good to see another AZ boater on the forum.

 

[bass or bass ?]

Re: 2 stroke oil question

Ok, here's the deal. I have posted this problem on 4 sites to get as much feedback as possible. 4 people on 2 of the sites have suggested that I replace my steel tank with a plastic one as a preventative to forming condensation inside the tank. I bought a new plastic tank in February, but didn't install it because the steel one was clean and showed no signs of rust inside and to install the plastic tank I need to use a hole saw and make a couple modifications in order to fit the plastic tank. I decided to go ahead and replace the steel tank before doing any other troubleshooting. I was surveying the situation, examining the hoses, when I noticed that the fuel pickup hose connection at the tank was wet and the hose clamp was loose. I disconnected my fuel filter and squeezed the primer bulb. Weak fuel squirt into a gas can. Then I tightened the hose clamp and pumped the fuel primer bulb again. Woosh. Major difference in fuel delivery. Adjusted the slow speed needle screws and decided to try starting the motor. Fired up instantly and purred like a kitten. Restarted at the touch of the key. What a relief. Again , a big thank you to all who responded with suggestions and help in my hour of need. Now I have one final request of you all . Do you all recommend switching my gas tank from steel to plastic? Thanks again.

 

[tashasdaddy]

Re: 2 stroke oil question

i recommend a fuel/water separating filter, before the motor and fuel primer bulb. use the exiting tank. may be a good idea, to replace all line with alcohol resistant lines.