Logo

Ignition issues

Steven38

New member
I'm recently purchased and 1978 Mark Twain Runabout and it has the inline 6 Mercruiser motor and when you turn the key on all of the gauges kick on all of the pumps will work but the motor will not turn over with the ignition I don't even hear anything clicking but I can jump the solenoid over and the motor will turn over but it won't start I really want this boat running this summer so we can go to the lake every weekend if you can help me I would greatly appreciate it
 
Two different problems...

1)Turning key won't cause the motor to crank..

2) When cranking...won't start.

Fix#1 problem first. Start by seeing if there is volts at the solenoid coil terminals when you turn the key to crank. If you do have +12, then solenoid bad, replace it.

A good place to start fixing problem #2 is:
a) fully charged battery
b) make sure fuel shut off valve is open.
 
Back
Top