Run off excess fuel (Should this be done?)

[parrisw]

Re: Run off excess fuel (Should this be done?)

There is one thing wrong with that theory. When it runs out of fuel (oil) the motor quits. So how can it run without oil? It can't.

Because at the end it leans out before it dies! I won't do it on mine, don't do it on my saws, or any 2stroke engine. 4 stroke is a totally different story.

 

[lindy46]

Re: Run off excess fuel (Should this be done?)

I have always run the gas out of the engine at the end of season. Lots out outboards over a 45 year+ time period and never a problem with any of the engines.

 

[bob johnson]

Re: Run off excess fuel (Should this be done?)

so two questions

1) when you run out of gas accidentally or beofre you switch to a second tank..is it possible you might have done damage to your motor?

2) which additive is better for preventing varnish buildup in carbs when they are not run for a month maybe or more?

or is there NOT an addative that does that?


thanks
bob

 

[Tacklewasher]

Re: Run off excess fuel (Should this be done?)

What about a single carb, 2 cylinder 2-stroke? Thinking of my old 9.9 Johnson here. Will you see wear on one cylinder before the other or will they both remain lubricated until it stops?

I have never been a fan of running them dry. I even get grumpy when I run out of fuel in a tank and try to avoid it at all costs.

 

[Bifflefan]

Re: Run off excess fuel (Should this be done?)

There is a lot of conflicting advice because there are a lot of different types of motors. I have a 2008 4 stroke Honda 50 hp. The Honda dealer I bought it from told me to run it out of gas every time you are going to not use it for a week or more. I checked with another Honda dealer and he said the same thing. I also have a 1989 2 stroke Johnson 20 hp with one carburetor. I run it dry every time after non use for more than a week.

So from what I understand, it does not hurt to run a 4 stroke dry or a 2 stroke with one carburetor dry. If you have a 2 stroke with more than one carburetor, then one carburetor will run dry before the others. When that happens, the cylinder without fuel is not being lubricated for a short period of time until all the other carburetor runs out of fuel. With the lack of lubrication, that's when the trouble can start.

Read above.

There is one thing wrong with that theory. When it runs out of fuel (oil) the motor quits. So how can it run without oil? It can't.

This is section for F_R
This is what i am talking about. My statment is meant to be a general rule, not for every instance.
Seems like everytime I state something in exact terms ther are people that need to try to pick it apart, so now i go with a general of thumb.
This a good example...
This statement is MY OPINION and there for i will never do as you do and run them dry, there is no reason to do it, there is no reason not to do it in your opinion so you do you and ill do me. thanks