Engine doesn't start until switch is released.

[87MonArk]

I have a 1987 OMC 4.3L Sterndrive that is hard to start after it's warmed-up. The engine will crank, but not start, until just as I release the ignition switch, and then it starts. I can crank the engine for several seconds, increase the throttle, etc., but it won't start until I release the switch.

 

[chiefalen]

Re: Engine doesn't start until switch is released.

Clean the connections on the slav selonoid. Or replace it. Bet it's going bad i would just replace it with a auto one.

 

[jayrodoh]

Re: Engine doesn't start until switch is released.

Check to make sure your coil is getting 12 volts when the key is in the crank position. There is a seperate wire that runs fro mthe starter solenoid/relay to the coil to provide more voltage during cranking. A resistance wire feeds ~9 volts when the key is in the run position only.

 

[mthieme]

Re: Engine doesn't start until switch is released.

Yep. Solenoid.
Went through this not too long ago. Coil was only getting 5V up from the starter solenoid. It always started though.