De-Winterizing

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I repowered last year with a lightly used 2000 Yamaha 200 HP 0X66 Saltwater series outboard.

The mechanic at my marina is trained on Mecury's. He winterized the engine fore me and the boat has been in dry storage for the winter. I am concerned about his ability to find and solve any problems and locate any trouble spots given he's not trained on Yamaha's if I have him get the motor ready for the spring season.

Should I be taking the boat to a Yamaha dealer to be worked on or will my Mecury guy be able to do the job?

Thanks very much,
 
If you trusted him to winterize the motor, why would you not trust him to fire it up in the Spring? If he's a certified tech, he knows marine engines in general pretty well....and if he has a good reputation and word of mouth is positive, which is the best kind, I'd let him do routine things on the motor....if you run into serious mechanical problems, then a certified tech for that particular brand may be better when diagnosing and fixing the problem effectively and efficiently.
 
Winterizing an engine is pretty easy. I'm not sure what "de-winterizing" is. You get the boat in the water, fire it up, and roll. Only potential thing could be to replace the plugs. Otherwise, thing like lower unit oil should have been replaced when winterizing.

So, these are basic processes and any mechanic or even a non-mechanic can do. Other service I'd send to a Yamaha mechanic.
 
yea, really , everything should have been done in the winterize.

With fuel inj engine there nothing to do really ( plugs, compression check.)
I pump out the about the first 1/2 gal of fuel to get fresh from the tank into the lines and dump my fuel filter out too. Burn it up in the lawn mower.

With carbed engine it may be a good idea to drain all the bowls out before first fire up. then prime the whole systems back up.

Just be aware it will smoke for a while till it burns off all the fogging oil.
 
Thanks for the input. Just being over cautious with the new motor. Having my old 175 Evinrude blow up on me last year was a serious kick in the wallet I want to avoid at all costs this season!
 
I heard once from a guy that if a yamaha had been sitting for sometime unused you should disconnect the fuel line and mix fuel and oil in a portable tank at 50:1 and run it off that tank for 5 minutes to let the oiling system get back up to par. That being said I just bought a GW that had sat since last summer with a 200 ox66 and I did not do this and it seemed to be ok. I just put the hose on it and when water was flowing good from every hole I pumped up the primer bulb and fired it up. Told myself I should do what the guy said but too late now.
 
Got Grady? said:
I heard once from a guy that if a yamaha had been sitting for sometime unused you should disconnect the fuel line and mix fuel and oil in a portable tank at 50:1 and run it off that tank for 5 minutes to let the oiling system get back up to par.
Click to expand...

This is for an engine that's been sitting for years, not a few months. Similar to a brand new 2-S engine where you have to run it rich for the first 20 hours.
 
Careful now somebody might buy a 2 stroke that has been sitting for 13 months and remember reading "This is for an engine that's been sitting for years" and not bother to start it as specified by Yamaha and trash a motor. I actually looked it up last night after posting on here. If it has been sitting for 12 months or longer it needs to be run on pre mix for awhile till the oil system has been purged of air. You shouldnt have to worry about that to start the season though. Wish I had done this to the one I just bought even though it only went about 9 months without being started. Seems safe is better than sorry when talking about a $4k + piece of equipment. Even if there is no air in the system it sure wouldnt hurt to give it 5 minutes on a rich mix after sitting for awhile since you dont always know if it was stored properly. JMHO
 
I'll rephrase to "thats for an engine sitting for a year or longer...."

the owner's manual probably doesn't say anything about "dormant" engines, only "new". Thanks for pinpointing the details!
 
I have been avoiding that issue being as how I have never done it. Of course I have only had the boat running twice. once when I was looking at it and the second time when I brought it back to the marina after i bought it. I intend to check into all that when she is sitting comfortably in front of my house. Is that a pretty straight forward process?
 
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