Logo
FULL SITE MENU

Black/Yellow stop circuit test question!

N

notyepcars

New member
Testing for spark issues. I made a push button test wires with clips and hook to the red wire to the hot side of starter solenoid and the other to the small post on the starter solenoid. I have spark to 3 cylinders when I disconnect the black/yellow wire from the power pack, and I also have spark to three cylinders when I connect the black/yellow wire. Is this normal?? Thanks
 
notyepcars said:
Testing for spark issues. I made a push button test wires with clips and hook to the red wire to the hot side of starter solenoid and the other to the small post on the starter solenoid. I have spark to 3 cylinders when I disconnect the black/yellow wire from the power pack, and I also have spark to three cylinders when I connect the black/yellow wire. Is this normal?? Thanks
Click to expand...

Yes... IF... the key is ON... OR the key switch is disconnected from the engine. What engine are you speaking of?
 
This is a 76 Evinrude 135hp, sorry. So if the key is in the off position, and I am jumping the engine with my bush button set-up, I should not have spark with the black/yellow wire disconnected from the power pack?
 
Flork said:
1985 60hp Evinrude
Click to expand...

Then yes, you would have spark in either case... IF ... The key is in the ON position... The black/yellow wire is disconnected from the "M" terminal of the switch... the RED electrical plug at the engine is disconnected. Any of these conditions would make any condition of the black/yellow wire at the powerpack nil.
 
This is a 76 Evinrude 135hp, sorry. So if the key is in the off position, and I am jumping the engine with my bush button set-up, I should not have spark with the black/yellow wire disconnected from the power pack?
 
notyepcars said:
This is a 76 Evinrude 135hp, sorry. So if the key is in the off position, and I am jumping the engine with my bush button set-up, I should not have spark with the black/yellow wire disconnected from the power pack?
Click to expand...

Correct.

(Ignition Kill Circuit)
(J. Reeves)

A Black wire (ground) should lead from the powerhead to the powerpack. There will also be a Black/Yellow wire leading from the powerpack to a raised "M" terminal of the ignition switch. To complete the circuit, there will be a Black wire from the other "M" terminal of the ignition switch to ground.

When the key is in the OFF position = The two "M" terminals are connected,. effectively shorting/killing the ignition.

When the key in ON position = The two "M" terminals are not connected and the ignition is engaged.
 
Back
Top