78 rude 115 general questions

[Mr.Stuart]

I got the 115 Evinrude checked out today by the mechanic, he said that he was unable to find anything wrong with it at all, I wanted it checked out just for the peace of mind, being a new boater, I wanted to know that I was safe taking the kids out on the river with the thing.

The mechanic did say that the engine looks extremely clean and well cared for, he did a compression check and it showed 150 lbs on 3 cylinders and 145 on the 4th and he told me that was good.

The engine runs well and doesn't seem to have any problems and I want to keep it that way, so while I set out on the learning curve with these outboards that are completely new to me, I do have a few questions.

I fly model airplanes and have always ran the two stroke engines dry after a day of flying and treated the carbs with Marvel mystery oil, and while I know that this outboard stuff is a whole new thing to me, what's your ideas on disconnecting the fuel line and letting the engine run dry before pulling it out of the water for the day? The mechanic said not to do it, but what are your thoughts? I can’t see where it would hurt anything to run the carbs dry so no fuel gunk builds up in the carbs between outings when the boat isn't in use.

Also, what about winterizing? I know this may be a loaded question, but what process do you go through to winterize the engine and lower unit?

 

[HighTrim]

Re: 78 rude 115 general questions

Dont run the motor dry. Periodically de carb it with a product like seafoam or the OMC decarb brand.i think i would invest in a can of seafoam, in a portable tank, mix 3/4 gallons of premix gas, an 3/4 can of seafoam, (assuming you don't have the vro connected). Put the remaining seafoam in a spray bottle, run the motor up to temperture, remove the plugs, one at a time, spray some seafoam into each cylinder and replace plug. let sit 15 minutes, remove the air silencer from the carb while waiting, restart motor, and spray seafoam into each carb, until it start to stall. repeat till seafoam is gone. run out the rest of the gas. it is going to smoke like it is on fire, and drip goo on the ground. replace the plugs with new ones, and then do the compression check again. this procedure burns the carbon out of the motor and been known to free up rings, and increase compression.
Your compression numbers are fantastic. Here is a thread you should read about winterizing. Happy boating.

http://forums.iboats.com/showthread.php?t=158078

 

[Mr.Stuart]

Re: 78 rude 115 general questions

the mechanic did say that it could use a new set of spark plugs, so what would you people recomend for plugs on this motor?