Reply To: Scott McCulloch 25

[rpsiii]

Good Afternoon Guys!

I have a 1959 Scott McCulloch 25 hp Model 335 2809, Electric Start with Generator.

Hopefully I can help with this topic!

The “Disconnect one wire for hand starting”. When you turn the starter key to “ON”, voltage is sent from the battery to that solenoid (on the port aft area) to activate and “remove” the ground connection of the coils allowing the coils to fire.

Conversely, turning the starter key to the “OFF” position removes the voltage from the solenoid causing to solenoid to “close” and grounds the ignition system and shuts the motor down.

So if you are “hand starting” you need to remove that ground connection to allow the coils to fire.
By disconnecting one of those wires you have removed the ground connection and the coils will no longer be grounded and now be able able to fire.

When you initially turn the start key “ON”, not crank, you should hear that solenoid activate, breaking the ground connection and ready to fire when you go to the crank and start position.

Hope I said that all in an understandable manner and correctly !!

I am going to try to attach an Electrical Harness diagram. (We’ll see how that goes!)

Respectfully,

Bob