Possible starter problem

[tinkma]

I have a 1984 70hp Johnson Outboard and broke a rod. It is my first time working on an engine and so far I replaced the rod and put everything back to together. Now, with the spark plugs out, the flywheel spins quickly. It barely spins at all with the plugs in. Ive been told to check the starter but I don't know how to check if it is spinning like it should. Any advice would be great! Thanks.

 

[Barnacle_Bill]

Re: Possible starter problem

Probably 95% of all starter problems is electrical. Is the battery fully charged? Check all your connections. They must be very clean and tight. Check the lugs very closely for any signs of corrosion. They can corrode inside where you can't see it and cause the problem you are having. If you know how to do a voltage drop test you could check them that way. Another way would be to temporally substitute the cables with jumper cables. If all the cables have been confirmed good, try jumping the starter solenoid. Just because it clicks does NOT mean its good. If you are sure the solenoid is good have your battery load tested, regardless of age. This brings you to the starter itself. Remove it and have it tested by your local auto electric shop. They can rebuild it for you if needed and save you some money. Let us know how you make out.

 

[boobie]

Re: Possible starter problem

First thing to do is have your battery load tested. Second is to check the battery cable connections on both the battery and the mtr.

 

[tinkma]

Re: Possible starter problem

Thanks for your help. I will try your suggestions this weekend and let you know. Thanks again!