753 Fuel shut-off solenid fuse blowing

carmelo31 · Aug 29, 2012

Greetings, I have a 753 and the fuel shut-off solenoid fuse is blowing. I replace solenide and timer and continues to do the same. The first time I put a fuse 30 instead of a 25, this caused it to burn the soleniode. selenide place again and change the timer and continues to fuse blows. could help me.

SkidRoe · Aug 29, 2012

Does the fuse blow right away or after a short period of time? Not that I am an expert, but if it is after a short period of time, could it be that your pull and hold coils are being energised continously when the key is on? The pull wire should only be energised when the starter is running.
I am less likely inclined to say that it is a harness short but it may be worth looking into anyway. These can be hard to find. Flip the ROPS and start tracing the harness from the key all the way to the engine, paying particular attention to any and all points where the harness contacts other components.
Hope this helps,
SR

carmelo31 · Aug 30, 2012

SkidRoe said:
Does the fuse blow right away or after a short period of time? Not that I am an expert, but if it is after a short period of time, could it be that your pull and hold coils are being energised continously when the key is on? The pull wire should only be energised when the starter is running.
I am less likely inclined to say that it is a harness short but it may be worth looking into anyway. These can be hard to find. Flip the ROPS and start tracing the harness from the key all the way to the engine, paying particular attention to any and all points where the harness contacts other components.
Hope this helps,
SR

I put the fuse and when you turn the key its blow inmediate.

SkidRoe · Aug 30, 2012

carmelo31 said:
I put the fuse and when you turn the key its blow inmediate.

That definitely sounds like a short. When you have the solenoid and timer disconnected from the harness, does the fuse still blow when you turn the ignition on?
A repair manual and a multimeter may also help you in diagnosing the issue.
HTH,
SR

carmelo31 · Aug 30, 2012

SkidRoe said:
That definitely sounds like a short. When you have the solenoid and timer disconnected from the harness, does the fuse still blow when you turn the ignition on?
A repair manual and a multimeter may also help you in diagnosing the issue.
HTH,
SR

Nop when I disconect the solenoid the fuse does not blow.