2007 Tohatsu 15B2EF Air Silencer Problem?

[treeshaka]

There was a piece of foam in the air silencer when I bought the motor used, it was a piece of foam out of a lawn mower carb it looks like. The parts manual shows no foam whatsoever, but motor only wants to start with my hand completely covering the air silencer????If I remove my hand the motor wants to cut off........ Any tips?

 

[TOHATSU GURU]

Re: 2007 Tohatsu 15B2EF Air Silencer Problem?

Loose the foam and have the carb cleaned.

 

[treeshaka]

Re: 2007 Tohatsu 15B2EF Air Silencer Problem?

Okay, took it off and apart and cleaned it out, looked fairly clean. There was an O-ring broke where the silencer attaches to the carb. (I know I will get raked over the coals for this one) Didnt have an o ring handy so I used some gasket maker to replace for right now.......so I will let that cure for the recommended 24 hours and try it out tommorrow. Thanks!!

 

[pvanv]

Re: 2007 Tohatsu 15B2EF Air Silencer Problem?

I'm guessing you're talking about the 4-stroke MFS15B2, not the old M15B2 2-stroke, since you're talking about an o-ring for the air silencer. The o-ring isn't actually critical -- it will run fine without one. But be absolutely certain that you did a very thorough job cleaning the carb. And you might want to test the auto-by-starter solenoid, which provides the automatic fuel enrichment for starting. For details, see the Factory service manual, available from any dealer, including me.