Johnson 40 won't start Warning horn shot?

[Maverick49]

My 40 hp johnson was running fine, started up fine, had no problems with the electrical what so ever, but my warning horn was unplugged cause it buzzed constantly, I suspected my vro was plugged but that was not the case, my vro works fine, so I checked my temperature sensor like my OMC manual said to do and it checked out ok also. So I was told that the warning horn could be defective, so this morning I ran the motor and while it was running, I hooked the wire up that was unplugged to the horn and it kinda buzzed a bit then quit, but when I touched it to the side of the boat it buzzed and only when I was touching it like it was grounding out on the aluminum? does this make sense? It made me think that the horn is defective so I unplugged both wires and plugged them back in again but to the opposite terminals and I couldn't get it to buzz again, it just wouldn't buzz for nothing. But then my motor wouldn't start, when I turn on the key the voltage meter on the dash does nothing. I tested my solenoid like the OMC manual says but my voltage meter was acting weird so I don't know if I got an accurate test, I checked and double checked all of my fuses and all were good, But I can cross the terminals on the solenoid and it will start. I'm lost can anyone help me?

 

[rickdb1boat]

Re: Johnson 40 won't start Warning horn shot?

Did you check the fuse in the motor compartment? It will be in a red bullet connector...

 

[Maverick49]

Re: Johnson 40 won't start Warning horn shot?

No I was checking the connections and seen that piece you show in your photo, I did take the other big red plug apart and put it back, I'll go try that right now.
Rick.

 

[Maverick49]

Re: Johnson 40 won't start Warning horn shot?

I checked and my 1990 40 hp does not have that small red bullet connector like the one in the photo it does have one but it's black with a black,tan,gray wire going in and out, am I looking in the wrong place or does mine not have a fuse as you describe?

 

[rickdb1boat]

Re: Johnson 40 won't start Warning horn shot?

There will be a separate 20 amp. fuse in the engine compartment. It may not be in a red connector, but it will be there. Check around some more..

 

[Maverick49]

Re: Johnson 40 won't start Warning horn shot?

I looked, I looked with my flashlight, I moved fuel lines and wiring harness's still I couldn't see anything that resembled a fuse holder, I didn't take off my starter to look behind it, but I can't imagine one being there. I've noticed that the bolts on the motor looked like they've had a wrench on them like the motor has been apart, could it be that it was deleted after a rebuild?

 

[Maverick49]

Re: Johnson 40 won't start Warning horn shot?

In my OMC service manual engines 40 thru 55 in the "Warning Horn Test" section page 1-30 the top right of page it shows a picture of my motor and there's the bullet connector there, my motor does not have this.
Rick

 

[Maverick49]

Re: Johnson 40 won't start Warning horn shot?

I took off my starter, and moved all of the wiring and hoses below and about the starter solenoid area and do not see this bullet connector with a fuse in it.

 

[Maverick49]

Re: Johnson 40 won't start Warning horn shot?

Hey rickdb1boat I see why you are a Supreme Mariner you were absolutely right, there was a fuse plug with a 20 amp fuse and it was fried! I found it behind a panel/cover next to the ignition coil. Thankyou thankyou thankyou!
Now I just need a new warning horn and I'll be set. once again Thankyou.
Rick.