In need of electrical help

[Tres333]

I just bought a used 2007 supposedly BF50 an and I’m having trouble getting the hook up done correctly. This is all new to me so hopefully I can explain the problem where y’all can understand. The harness was removed from the motor when I got it, we jumped straight to the starter in order to do a compression test, around 100 psi on all 3 cylinders. It is missing the lanyard safety switch so I put a jumper in the plug to try and get it to fire on the stand but when I hook up the battery I can’t get any power anywhere on the engine. I think it is probably a simple overlook, but I don’t know where to start. Any suggestions or help would be greatly appreciated.

 

[flashback]

I can't help you with the electrics but you don't want to start it out of water. The rubber impeller will disintegrate if it starts.

 

[Tres333]

Flashback, thank you, I plan on replacing the impeller before I put it in use, just wanted to make sure that the motor is good before I get too far along.

 

[cyclops222]

No harness. You are lost. I sure would be. Where are you going to find all the missing parts ?

 

[Tres333]

Sorry if I was not clear, I have the harness, it was just not connected. I think I have it connected properly now but I can’t find power to anything testing with my multi meter. When I move the shifter lever, I can’t feel a neutral detent, only seems to have two positions. The shifter and throttle cables are not hooked up, but I have them.

 

[Tres333]

Update, with the harness unhooked OR hooked with the key on, I can jump to the starter and it will fire/run with a shot of ether. With the key off, harness hooked, it will not fire, but there is still no power to the harness. Would a bad solenoid be the culprit?

 

[Tres333]

Update addition, I still have no power to either tilt/trim switch.

 

[MattFL]

Start with the fuses.

 

[Tres333]

Ok. After taking a break, I have found that if I run a jumper from the positive post on the solenoid to the wire that comes out of the solenoid I have power to the tilt / trim and the ignition switch will crank and start the motor. I think that indicates that the solenoid is bad, just unsure if the wire coming out is supposed to be hot at all times. Also, there’s no beep when I turn the key on. Any suggestions?

 

[cyclops222]

How do you know the harness is good and the right type for the motor ?

 

[Ptr.Torch]

Wiring issues are often fairly easy fixes, but there are too many what-if's right now. Start, always start with checking for a good ground. Then follow the lead from the batteries positive connection and look for power where ever it is attached to. If there is a relay in line, one side is hot/high power, the other side is switched/low power. Switch off, power off on the high side. Switch on, power on, on the high side. But if the switch has no power, the relay never will... so trace that back and ensure all connection are good.

Have you looked for a wiring diagram? Having the right diagram will answer a thousand questions.