Check/Fix/Replace Starter Motor 1996 50hp

janul15

Petty Officer 3rd Class
Joined
Feb 15, 2020
Messages
95
I was just about to wire up and attach my PTT unit as discussed, Johnson BJ50 BELEDS,when I decided to start my engine. No start. No crank, solenoid clicks. Someone noticed that the 9 spline cog on the starter motor was in the upper (engaged) position when I tried to start it. He thought it should have dropped. ( is that bit, with the spring, the Bendix?). Anyway, put a +ve feed directly from the battery onto the +ve terminal, and the response was very poor. Sometimes nothing, sometimes slow rotation, sometimes a bit more rapid and the Bendix moves up to engage, but won't turn the flywheel. Are there any more tests I should do before I take off the starter motor? If I take it off, should I try and fix it, or replace it?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
39,370
Very important to answer questions here in order to help YOU.--What is the history on this motor, or new to you motor?----Verified that is not bearings in engine locked up ?----Verified that it is not the lower unit binding ?----Load test the battery.-----Inspect battery cables.----Compression , actual values ?-----Take starter apart and take ohm reading from commutator to the lower stub shaft.----Report that value.
 
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