starter does not de-energize

[zenmaster@prodigy.net]

I have replaced the solenoid, so I know it is good on 1971 25 hp johnson. However, my starter will still stay electrically engaged after the switch connection on the start switch is open. Anybody have an idea why?

 

[CATransplant]

Re: starter does not de-energize

Probably a wiring problem somewhere. Check your connections. It could also be a defective ignition switch. <br /><br />Disconnect the wire on the solenoid that goes to the ignition switch. Then, meter the voltage from that wire to ground as you turn the switch to the ON then the START position and return to ON.<br /><br />If it's got 12v in both the ON and START positions, the ignition switch is hosed and needs replacement.<br /><br />A short in the wiring harness could also be doing this so inspect the wiring carefully, tracing the wire from the ignition switch to the solenoid over it's entire length.

 

[zenmaster@prodigy.net]

Re: starter does not de-energize

I have a push button start switch, whih is missing it's cover, so I short across the two contact points to engage the starter. Sometimes it de-energizes the starter when I break the connection, sometimes it don't. I've had the starter off the engine before, could I have left some insulator off or something? Once I saw a spark jump from the bottom of the starter case to the engine below it.

 

[CATransplant]

Re: starter does not de-energize

I don't know. You have a broken start switch there. I'd start with that as the source of the problem. <br /><br />I think what I'd do is disconnect your push button switch altogether and replace it. Where is this switch? According to the parts list diagrams, Johnson didn't offer an electric start 25hp engine in 1971, so this must be a conversion.<br /><br />So, replace the switch and all will probably be well. The starter housing should be grounded to the engine block. If you saw a spark, you have a bad ground, but that shouldn't keep the solenoid energized.<br /><br />If you're having problems with the switch, replace the switch. Seems pretty simple to me. Also, check the wiring to the solenoid. You said you replaced it recently. Did you get the wiring messed up?

 

[zenmaster@prodigy.net]

Re: starter does not de-energize

I think I may have found the short, the wire going to the solenoid was spliced and wrapped with electrical tape that was oily and laying on the cable going to the starter. I replaced the tape and moved the wire. And, it worked (for now at least), I'll see what happens. Thanks.

 

[zenmaster@prodigy.net]

Re: starter does not de-energize

It is a 1971 model, I should replace the switch as occassionaly I get a shock if I use a coin to short across the switch.

 

[CATransplant]

Re: starter does not de-energize

Very good, grasshopper! <br /><br />Now, fix that cruddy wire, replace the switch, and get back on the water. You have reached Nirvana with this problem.