First off the motor is a 1980ish (within about 2 years each way) 70hp Johnson
After trouble shooting my starting problems I had it down to either the key switch or starter solenoid. I put a new solenoid in it and after doing some more trouble shooting I have a new problem, every time I turn the key it blows the 20amp fuse in the engine.
Here are the trouble shooting steps I've gone through before the fuse popping problem:
1) Voltage at battery is 12.37 (dropped a bit now from trying to jump start at solenoid so I need to recharge it)
2) Voltage at solenoid where battery connects is also 12.37.
3) Turn the key and I get a click at the solenoid but starter doesn't go, the output of the solenoid to starter is 0 volts when key is turned. Input from key at S terminal on solenoid is 0 volts when key is turned.
4) Put a wire from battery to starter and it started to go so I know starter is good. Put a new solenoid in at this point. Still didn't work.
5) Opened control box to test key switch. I get a 12.37 reading coming in. When I turn key nothing happens. After some looking I see that the 20 amp fuse in the motor is blown. Replaced fuse couple of times keeps blowing when I turn the key
7) Put wire from power into solenoid to the S terminal and the starter started to go.
8) Back into the control box which is still open, I test to see if it still has voltage and it does. While I have test lead on the incoming wire, it accidentally touches another wire which I am guessing is the outgoing wire at the same time and the starter starts to turn, the fuse doesn't blow. Thinking maybe I corrected the problem somehow I try turning the key, fuse blows.
9) After some playing around with the tester in the control box I find that for some reason I get a small voltage reading from the metal case of the control box.
Is this normal or is my problem a wire touching the case or something?
I have basically narrowed it down from what I know to either being a short somewhere in the box or a bad key switch. Looking for any help I can get, am I on the right track here? Should I be looking at something else being the problem?
Thanks for any help!
After trouble shooting my starting problems I had it down to either the key switch or starter solenoid. I put a new solenoid in it and after doing some more trouble shooting I have a new problem, every time I turn the key it blows the 20amp fuse in the engine.
Here are the trouble shooting steps I've gone through before the fuse popping problem:
1) Voltage at battery is 12.37 (dropped a bit now from trying to jump start at solenoid so I need to recharge it)
2) Voltage at solenoid where battery connects is also 12.37.
3) Turn the key and I get a click at the solenoid but starter doesn't go, the output of the solenoid to starter is 0 volts when key is turned. Input from key at S terminal on solenoid is 0 volts when key is turned.
4) Put a wire from battery to starter and it started to go so I know starter is good. Put a new solenoid in at this point. Still didn't work.
5) Opened control box to test key switch. I get a 12.37 reading coming in. When I turn key nothing happens. After some looking I see that the 20 amp fuse in the motor is blown. Replaced fuse couple of times keeps blowing when I turn the key
7) Put wire from power into solenoid to the S terminal and the starter started to go.
8) Back into the control box which is still open, I test to see if it still has voltage and it does. While I have test lead on the incoming wire, it accidentally touches another wire which I am guessing is the outgoing wire at the same time and the starter starts to turn, the fuse doesn't blow. Thinking maybe I corrected the problem somehow I try turning the key, fuse blows.
9) After some playing around with the tester in the control box I find that for some reason I get a small voltage reading from the metal case of the control box.
Is this normal or is my problem a wire touching the case or something?
I have basically narrowed it down from what I know to either being a short somewhere in the box or a bad key switch. Looking for any help I can get, am I on the right track here? Should I be looking at something else being the problem?
Thanks for any help!
