Logo
FULL SITE MENU

85' Evinrude 300 Primer Solinoid circuit issues (not solenoid itself)

F

fastback180

New member
Hey guys, new to the Forum. Name is Kyle, Phoenix AZ.

I just acquired a 1986 Eliminator 21' that the previous owner gave up on trying to fix due to multiple hydraulic failures and parked it. Anyways, I started the engine for the first time and let it run for a min or two at idle and shut it down. Sounded good and mechanically sound so I moved on to fixing all of the trim/tilt and jack plate issues.

Went back to see the primer solenoid dumping fuel with the ignition on and the fuel pump running. OK, took it off and saw it was totally melted. No biggie, bought a brand new one....

Figured I would test the circuit before I put the new one in and found that it had a constant 6 volts with out pressing the key.. Damnit!! Its shorted....:mad: Also note: Even pressing key in with ignition on, voltage did not change. Constant 6 volts at all times.

So I test the circuit at the key and it works fine at the terminals on the back of the key...

Anyone familiar with these engines?
 
faztbullet said:
Does it have a electrical fuel pump? It should not...
Click to expand...

Yes, it does. I have it disconnected at the moment for diag purposes. What should it have to feed fuel to the engine?

The last two boats ive had with outboards had the same low psi universal electric fuel pump with no issues?
 
The electric primer valve should only have 12 volts on it when key is pushed in.-------That primer valve eliminates choke flappers.------It works very well for near instant starts.----Sort out the wiring before you launch this boat.-----Safety is first.
 
racerone said:
The electric primer valve should only have 12 volts on it when key is pushed in.-------That primer valve eliminates choke flappers.------It works very well for near instant starts.----Sort out the wiring before you launch this boat.-----Safety is first.
Click to expand...

Absolutely, I am going through entire boat top to bottom. Shes been sleeping in a climate controlled garage for the better part of 4 years. Tons of new parts on the way. Lots to fix/update.

Would a bad rectifier cause these engines to have weird readings across the pins and short 12v to ground? I took some ohm readings on the engine side main red connector to ground (engine block) and I am getting various resistance values when I think most should be O.L. (off line).
 
Checking wiring like that will result in weird readings due to you reading thru a component windings. That motor originally came with 2 VRO pumps and if it has been converted to a electric fuel pump it needs to be wired to a relay. Also will need a regulator..
 
Back
Top