Signs of a well maintained used outboard

Nucknoilerfan

Seaman
Joined
Nov 6, 2003
Messages
64
I'm looking to buy a used 7.5 - 9.9hp 2 cycle outboard to power my 12' Aluminum Boat. I've never owned a boat or motor before so I'm interested in reading what you guys have to say in what to look for in a used motor. What signs would indicate that the motor wasn't maintained properly and could give me grief down the road. I'm kind of handy mechanically but I'd rather be out fishing with my kids than yanking on the pull cord trying to get it started out on the lake. At the very least I think that you'd want to see the motor run in a 45 gallon drum of water but any tips would be appreciated :confused. I'm sure that this has probably been discussed numerous times in the past but I went back about 8 pages and couldn't find what I needed. :confused:
 

crazy charlie

Vice Admiral
Joined
May 22, 2003
Messages
5,499
Re: Signs of a well maintained used outboard

General appearance is a start.If it is all scratched up and the skegg is worn down or the prop is all dinged up ,this will USUALLY give you a first indication.Take off the cover and check for corrosion on the head area.Look to see that everything has paint on it.Not having paint is a sign of possible overheating.Pull the plugs and check them and do a compression test while you are at it.Undo the drain on the lower unit for a moment or two and take notice as to what comes out first.water will usually come out first if there has been intrusion.Take note of the oil color and smear it between your fingers looking for metalic shavings.And certainly run it for a while.Stop by an outboard repair shop and ask for a temperature stick.It is like a crayon that will melt at a particular temp. Its a good way to check if it is running hot.Charlie
 

BF

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Apr 8, 2003
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1,489
Re: Signs of a well maintained used outboard

Good question... for sure I'd do 3 things: 1)look at the gear lube (as has been said, just the first bit, don't drain it on the guy), 2) I'd do a compression test, (and spark while you have the plugs out) and 3) (lastly) I'd wanna see it run. Once running I'd look to see how the water pump seems to work, and make sure F/N/R work with no unusual noises. I'd let it warm up an see how it idles and re-starts. I much prefer to see it run with the leg in a barrel or garbage can than on muffs.<br /><br />Other things to note... because I'd warn the guy when I call that I'd wanna see it run, the first thing I do when I get there is make sure the engine is cold. I prefer to see a cold start, if it's hard to start when cold, he might be sneaky enough to warm it up 20 minutes before you said you'll be there. Do 1 & 2 before #3.<br /><br />Biggest thing is being able to ask Q's to feel out how diligent they've been with maintenance. I don't care so much that they've done it themselves or not, but I'd want to find out if they know that the lower unit lube needs to be changed every fall, and the impeller should be replaced occassionally.<br /><br />Good signs: he has receipts for work that he says has been done, he has the owner's manual and a service manual, when you say you'd like to have a peak at the LU oil, he says, "sure, but I just put new stuff in there in the fall"<br /><br />Bad signs: he gives you a blank stare when you ask when he last changed the lower unit lube or if the impeller has ever been changed. Also bad if he seems to know a LOT about outboards and has carcasses of others lying around. Frankensteins might be OK if cheap enough, but I'd much prefer an well maintained original motor.<br /><br />While the outside condition tells you something about the overall TLC... you might get a bargain on a scratched up ugly duckling that could be fine mechanically. In these parts anyway (fresh water & short season) impellers tend to be left in longer so it's not too uncommon for people to be a bit ignorant about their importance. Whether it seems OK or not, I'd put a new one in (and new plugs) before I started actually using the motor. Also, check the LU oil for water after your first time out. For me, it always takes a few outings to have any sort of trust for a new-to-me outboard. (having a kicker isn't a bad thing)<br /><br />hope this helps.<br /><br />Brent
 

BF

Lieutenant
Joined
Apr 8, 2003
Messages
1,489
Re: Signs of a well maintained used outboard

oh, and forgot... check to make sure that the model/serial # plate is still on it (on transom mount usually)... if it's missing it might have been stolen.
 

Nucknoilerfan

Seaman
Joined
Nov 6, 2003
Messages
64
Re: Signs of a well maintained used outboard

Wow great response, this is exactly what I was looking for. I knew that this was the place for advice on this type of purchase. I guess now the search begins for a clean well maintained motor. Thanks for the information it's much appreciated.
 
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