Start motor problem?

vandy21

Petty Officer 1st Class
Joined
Mar 27, 2007
Messages
375
I have a 1988 140hp Johnson which is not starting. The motor is turning, but the small gear that is supposed to "jump" up and spin the flywheel isn't "jumping". Is the starter motor shot or is there something I can do to fix it? Thanks
 

petryshyn

Commander
Joined
Oct 3, 2001
Messages
2,851
Re: Start motor problem?

Lift the gear up by hand and lube the spline with TCW-3
Other things that will cause this:

-low battery
-reversed battery cables :(
-incorrectly rebuilt starter
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Start motor problem?

Or the far most common cause: Bad connections of the battery cables to the engine.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Start motor problem?

as JB said.

90% of starter problems are bad connections. remove and clean both ends of the battery cables, so that they are shiney, also the cable from the solenoid to starter. check for nicks in the cables. and make sure the connectors are on the wire good. the cable tend to corrode from the inside out, if nicked, corroded wires, and connections, heat up and cause resistance to the follow of electricity, thus the starter doesn't get enough. you can also take jumper cable pos battery post to large post on starter. with a good connection, the engine should spin. then if the starter is good clean everything and retest. then trouble shoot solenoid. starters can be rebuit at a starter/alternator shop, much cheaper than a new one.

also have the battery load tested at the auto parts store, free, i've had new batteries go bad
 

vandy21

Petty Officer 1st Class
Joined
Mar 27, 2007
Messages
375
Re: Start motor problem?

Ok, thanks a lot guys, I'll try those ideas.
 
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