I left ignition key on 1993 150 hp Johnson?
by Coldfront57 on 18 Jul, 2016 09:24
Will this damage anything on the motor? It obviously was powering something on the motor the starting battery went stone dead. Key was left on for about a week. Thanks Erik
Reply #1
by JackJ on 18 Jul, 2016 13:02
I would not think it would have hurt anything other than discharging your battery.
Reply #2
by bullet20dc on 19 Jul, 2016 05:56
a possibility that a coil was overheated or the regulators were damaged. The motor controller or now we call it a cpu draws current when the key is on if left on long enough it will kill the battery. Probability is youre ok tho just charge the battery and sniff around for unusually smells like a electrical smell. with key on cowl off
Reply #3
by fishon-son on 19 Jul, 2016 19:52
did this to my merc..that was all good after a recharge of the battery...nothing happen to the motor...went two weeks not sure how long it took to run the battery down....