My Dad has a 16’ cc that has been sitting for about 8 (may even be 10) years and by sitting I mean not used or cranked!! It has a Yamaha 90 on it. If I wanted to clean it up to use it what should I do to the engine? Should I take it to ChrisV and let him give it a once over before even trying to start it? What about the gas that has been in the tank all of the years? Should I have all of that cleaned out once again by ChrisV?
It has never had ethanol fuel in it. It ran fine the last time it was running (8-10 years ago). What should I do, besides getting another boat?
I would take it to chris V or somewhere have the tank pumped/cleaned plugs will need to be replaced, carbs? water pump? I would just take it up there and let him give you a $$$$ of what it will cost to get it going. Thats your best bet.
Are you handy with wrenches? Get some advice from a mechanic on a list of what needs to be done. Buy the parts from that mechanic for what you can do yourself (spark plugs, fuel filters, foot oil, trailer bearings, etc). Then take it back to that mechanic to let him rebuild the carbs, clean the tank, and whatever else you can’t do. You’ll save some money, support the local guy, and have the satisfaction that you helped resurrect the boat.
Sitting that long the gas is definitely bad, seals and gaskets are probably rotten as are hoses and no telling what kind of oil/jelly is inside the engine. You could do what localdude says and replace everything you can yourself and save a few $$$ but personally I’d find a pro who knows what he is doing. That way things get done right and you’ll have peace of mind when you get on the water.
Mark
Mako 262 Twin Yammaha F200s
Yeah, but do you consider a dog to be a filthy animal? I wouldn’t go so far as to call a dog filthy but they’re definitely dirty. But, a dog’s got personality. Personality goes a long way.
“Life’s tough…It’s even tougher if you’re stupid” John Wayne
Remove the cowling. Pull the plugs and spray a little WD-40 in each cylinder and let it sit for a few minutes. You should be able to get it to spin by hand reasonably smoothly. Everything inside the motor is dry. So, don’t spin it any more than you need to make sure it is not seized. Put the plugs back in and try to spin it again, by hand. This is the coarsest of compression tests, but, hopefully you won’t be able to get it to spin all the way. When it pushes the next piston up into the cylinder and hopefully makes some compression it should stop you. If you can move it some but not spin it, then you might be making compression on one cylinder(been sitting there a long time with at least one valve open). Maybe it is worth continuing.
You might get really really lucky. If the motor had the fuel run all the way out the last time it was shutdown, the carbs might be reasonably clean. You might hook up the a separate gas tank and line and a battery and see if it will start. I’d be surprised. But, it might. Even if it does start, I’d still pull the carbs and clean rebuild. Otherwise,…
Get a good book for the motor. (I like my Seloc manual for my old Johnson - seems adequate)
Pull the motor’s fuel pump and carbs and rebuild them.
Put everything back together.
Get/barrow a good clean gas can and fuel line and fill it with new gas.
Hook up the new gas.
Hook up some water to the foot. You’ll obviously need an impeller, but, you don’t want to shred the old one and have parts of it go up into the motor. So, some water would be a good idea.
See if it will do anything.
The carb kits and fuel pump kit shouldn’t cost a lot. You can invest a few hours of work and see if the thing is worth spending any more time on. If it fires, good. If it actually cranks, great.