1961 10hp Evinrude

Kobie

Cadet
Joined
Jan 10, 2009
Messages
28
I just recieved a free 1961 10hp Evinrude from a friend and have been having troubles starting it. He had it running all last year. I have checked everything that i can thing of, without removing the carbs, and cannot get this beast to start. I've tried using some ether, just to get a quick spark, but the engine burns it for 2 seconds then quits. I also got a new fuel connector because I thought that the motor might not be getting enough fuel due to a clog (found a leaf in the gas tank). I also put in fresh gas and oil using the 24:1 ratio. Whats the problem here?
 

jbjennings

Captain
Joined
Jul 18, 2007
Messages
3,903
Re: 1961 10hp Evinrude

Those OMC 10hp motors from the 60's are not very reliable and difficult to get running right, so you might want to just junk it.....

I do have a disposal system and would be glad to take care of that for you so email me and I'll give you my address and a time you can bring it by.;)


Really, you need to first pull the flywheel and check the coils and clean the points. Then check to see if the spark will jump a 1/4 inch gap (not just ground the plug and see if it makes a blue spark). Once you get good spark, then take your carb and fuel lines off and rebuild the carb, replacing the lines. Don't be scared of the carb, they're really incredibly simple. Just soak it in some carb cleaner or if you're really in a hurry, take it apart, spray it out with carb. cleaner in a can, use the little red tube to blow out all the passages, and spray some in the idle jet hole while looking in the carb throat to make sure the 5 tiny idle holes in the top/back of the carb throat are letting fuel through (without getting carb cleaner in your eye!!) Then replace the crappy cork float if it has one with a new plastic float (these don't come with a carb kit so be sure you buy it separate, or get the BRP kit that has the float. Be sure and specify this, or they'll send you a kit without a float. Then put the carb back together and put it on.
You might also think of NOT using ether to start it, but use some fuel/oil mix in a spray bottle instead. The ether doesn't give the crank and pistons any lubrication and is especially bad on a motor that hasn't been run in a while.
Then replace all fuel lines and make sure your tank is spotless or you'll suck up some trash and have to rebuild the carb. all over again.
NEXT, and just as important, replace the water pump impeller and change out the lower unit oil. If the old impeller is good, replace it anyway! If it goes your motor is burned up.

Lastly, forget everything I said and look at the "awakening a sleeping outboard" thread in the FAQ section. IT's really good and Joe Reeves has a carb. setting procedure that's ideal to use.

Good luck on your motor. Just from reading your thread, you probably have spark on at least one cylinder and if your carb was clean and the float actually still floats, it would run. You might also take the fuel line from the fuel pump loose and see if the fuel pump pulses fuel when you pull the starting cord. If not, it could be an obstruction in the line or tank, or it's time for a new pump. DOn't try rebuilding it, it's well worth it to just replace the whole thing. Don't overtighten the fuel pump thumb screw either, or you'll break the little cover.:)
Later,
JBJ
 

Kobie

Cadet
Joined
Jan 10, 2009
Messages
28
Re: 1961 10hp Evinrude

Thanks for all the great info, I will try rebuilding the carb next. After I do all of that, is there some way I can attach an air tool to ease in cranking the motor?
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: 1961 10hp Evinrude

If after you fix it up, it does not start by the 3rd pull or so, it still has issues. Once mine are fixed up they usually start on the first pull. They're great engines.
 

Kobie

Cadet
Joined
Jan 10, 2009
Messages
28
Re: 1961 10hp Evinrude

Sounds great, thanks for all the help. I'll post again after I fix everything up.
 

Ksmith0110

Petty Officer 2nd Class
Joined
Jul 18, 2009
Messages
118
Re: 1961 10hp Evinrude

Just a thought, my father-in-law bought a motor from me that always ran great and he couldn't get it to start. He said he tried and tried but it would just burn off the starting fluid he squirted in. Turns out he had the fuel line on backwards. Once he turned it around it started right up. - Just a thought.
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: 1961 10hp Evinrude

Hey... That happened to me once also... Had just launched my small pontoon boat... Was drifting down the river towards the rocks... Dang thing wouldn't start... Had the friggin' hose on backwards! Duh. It happens! But never again! Besides, most of my tanks are dual line now. Impossible to reverse! Idiot proof!
 

nlar

Cadet
Joined
Jul 29, 2009
Messages
13
Re: 1961 10hp Evinrude

Bought a 1963 10hp on an auction. I have very limited mechanical ability. I did some research and ordered a manual and asked some questions on here and a couple of other places. I went ahead and ordered new points, condensers, water pump, new gas line and coils all for about $60.00. Marine mechanic said it would be around $400.00 or so to get it running, four hours later and replacing the parts and it started on the first pull and runs like a champ. From what I have been told they are very reliable motors, I am pretty proud every time I head out onto the lake with it.
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: 1961 10hp Evinrude

Excellent. Way to go. And easy to work on eh. And the '63's are good looking engines...
 

1946Zephyr

Vice Admiral
Joined
Oct 21, 2008
Messages
5,556
Re: 1961 10hp Evinrude

Yea, a major tune up of this degree is always the best way to go and you won't have to mess with it for many years ahead. Just change the lower unit oil, before winter sets in and you're good. Check and make sure it's topped off before the first use and make sure no water gets in it. The only other thing you'll need to do is make sure the point gaps are still good. It only takes a couple little things to keep these motors up, but often times, the previous owners to our motors neglect those things and that's why we get them and have to fix them all up.:cool:

I still think the 57 models are cooler lookin motors:D:D
 

Motor guy

Cadet
Joined
Jun 6, 2010
Messages
20
Re: 1961 10hp Evinrude

Hello i have a 1961 10 hp evinrude sportwin and the gear select handle broke off any idea where i can get a new one. Thanks
 
Top