1970-1972 Johnson OB with no fire

[Wayne Warner]

We recently purchased a boat with a Johnson OB. Not sure of the year but reading other posts, I am guessing 70 or 71. It will turn over but will not fire. We put new plugs in it but they are not getting any fire at all. We took off the flywheel and cleaned the points and contacts, still no fire.

Any thoughts on what it could be? A little idea about the motor: it has an amplifier and one coil. On top of the motor cover, it says "loop charged". Any suggestions would be appreciated. Thanks,

Wayne

 

[wilde1j]

Re: 1970-1972 Johnson OB with no fire

If it's a 70 - 72 motor, it's not "loop charged". Post the model number and we can help you more.

 

[Wayne Warner]

Re: 1970-1972 Johnson OB with no fire

Thanks for your replies. I certainly don't want to waste anyone's time and if I had the shop manual, I probably would be in a world of better knowledge-shape than I'm in. Obviously, we bought the boat used so we have no prior knowledge of the motor or boat. However, I did find the model to the motor and it is 60ESL-71C.

I appreciate your thoughts on what the problem(s) may be.


Wayne

 

[wilde1j]

Re: 1970-1972 Johnson OB with no fire

Wayne, that's part of my signature and a suggestion not directed at anyone in particular. It's way easier to fix these machines with the right info, that's all.

You may find a manual in a public library. You'll be really way ahead with a book. Ebay sometimes has manuals at low cost.

 

[Wayne Warner]

Re: 1970-1972 Johnson OB with no fire

Not a problem, I picked that up in searching through other posts. I also figured out through other posts that my motor most likely is a 71 with the model # being 60ESL 71C. I will definitely try to find a manual; however, a few questions:

1) do you have any ideas on why it isn't getting any fire to the plugs?
2) any idea on how to find out the HP of the motor?

Any suggestions would be helpful until I can track down a manual. Thanks!

Wayne.

 

[wilde1j]

Re: 1970-1972 Johnson OB with no fire

From the model, I would say it's a '71 60 HP

 

[wilde1j]

Re: 1970-1972 Johnson OB with no fire

Ebay is one possible source for a shop manual, also kencook.com and www.outboardbooks.com
www.marineengines.com
which Jonesg suggests as well.

 

[Wayne Warner]

Re: 1970-1972 Johnson OB with no fire

Okay, thanks for the info on the manual. Until I can get one in my hands, do you have ANY ideas on what I can do to find out why the plugs are not getting any fire?

 

[wilde1j]

Re: 1970-1972 Johnson OB with no fire

If memory serves me right, the ignition system on your motor may be an odd ball one that OMC only used for a few model years and I don't have personal experience with it. Maybe F_R or someone else can be helpful here.

 

[fishingdoug]

Re: 1970-1972 Johnson 115 OB with no fire

Re: 1970-1972 Johnson 115 OB with no fire

here is my model#115083--ser# E07955 and the OMC#21355 can this motor be changed over to points..Doug

 

[boobie]

Re: 1970-1972 Johnson 115 OB with no fire

Re: 1970-1972 Johnson 115 OB with no fire

You may want to start a new thread. This one is almost two yrs old.