Decarb on muffs safe for RPM's?

RobsTV

Seaman
Joined
Apr 1, 2006
Messages
67
Have a '83 175 Evinrude that is trailered to ramp on narrow river that leads to Gulf of Mexico after 40 minutes of no wake zone. Plenty of waterfront homes.

Looks like I need to keep RPM's up during decarb.
Is this safe to do out of the water, on trailer, only using muffs?
That way, it would be easy to let it sit and soak between applications.

Otherwise, would need to go out in the gulf a little ways, and would not want to sit for long between applications, or have starting issues. Can not do it at ramp or dockside.

Also, was originally going to use Seafoam, since I've used it for years in my other stuff, but a couple people have told me that with this motor I should use OMC stuff that comes in a can and screws directly into a schrader type valve on starboard side of engine. Will that make a difference as to where and how I perform the decarb procedure?

What would you do?

Thanks.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Decarb on muffs safe for RPM's?

not really, but don't exceed 1500 rpms on muffs, can cause runaway any higher.
 

RobsTV

Seaman
Joined
Apr 1, 2006
Messages
67
Re: Decarb on muffs safe for RPM's?

So it is not really safe to do because I should not exceed 1500 rpm's on muffs?
 

darrklim2

Petty Officer 1st Class
Joined
Jul 5, 2007
Messages
228
Re: Decarb on muffs safe for RPM's?

I think when Tashasdaddy said "not really", the response was to your question of "Will that make a difference as to where and how I perform the decarb procedure?"

Therefore I think it is ok to do the decarb procedure with the muffs but don't exceed 1500 rpms.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Decarb on muffs safe for RPM's?

yes it will be worth it. the main object is the bring the motor to operating temperature. then use the schrader valve. whether the motor is running 1500 or 2500 the tstat is only going to let it get so warm.
 

RobsTV

Seaman
Joined
Apr 1, 2006
Messages
67
Re: Decarb on muffs safe for RPM's?

Thanks for the help, that was what i needed to know.
 
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