Boiling Gas on 122

[Nailhead]

Originally Posted by J-Mech

Ryan, gas will boil. It does so at a much lower temp than water. Pretty unsafe really....Lots of vapors.

And, if you leave a full, sealed gas can in the sun, it will flash boil when you remove the lid too quickly, shooting a stream of gas surprisingly high in the air.

[sir_lancealot]

I would go back with the sediment bowl, but keep the rubber hose. It's much better for the gravity-fed system. Pressured systems should use filters. And keep your tank full. Nothing wrong with doing that.

[Nailhead]

Thanks for all the advice, everyone.

I looked at the manual, and barring the cowl mount bolts and their inaccessibility, engine removal looks pretty straightforward, so my enthusiasm is returning.

We'll see how it goes. Thanks again.

[REDDHOGG]

Might look at the throttle shaft ,loose shaft can make a lean condition and over heating.

[Nailhead]

Originally Posted by REDDHOGG

Might look at the throttle shaft ,loose shaft can make a lean condition and over heating.

It's in good shape. I thoroughly inspected the carb when I rebuilt it, and the shaft bushings don't have what I would consider excessive play in them.

Thanks for the reminder-- I have to back that mixture screw out a half turn or so, although I set it to the specified initial setting, and I'm at about 5000' feet elevation. Maybe I'll make that change a last resort.

I'll check that shaft play, even so. Thank you.

[J-Mech]

The "specified initial setting" is just a starting point so that you can get the engine to run. The carb must be tuned to run with each individual engine. The book states this. I don't understand why people have such a hard time understanding that.

Gas will boil at lower temp at higher elevation.... but it still shouldn't be boiling in your tank.

[R Bedell]

Closing this thread before things get out of hand. The information has been given. The Original Poster can do as he see fit.