Logo
FULL SITE MENU

1989 25 Evinrude wonbt rev in gear

B

bucket

New member
"I picked up a 1989 25 hp Evin

"I picked up a 1989 25 hp Evinrude that hasn't been run in over a year. Afer a couple of small fixes and a cleaning of the carb, it runs, but not well. First, it seems to be running real rich. Puts off a more smoke than I'm used to and leaves a lot of oil in the tub of water I'm running it in (air screw set to about 1 3/4 turns out). It starts rather easily if you have the throttle lever up but doesn't idle well. It revs fine if it isn't in gear and sounds smooth. When I put it in gear it won't wind out. After a quick search, I see that the schrader valve(?) is the answer to one of my questions...but I have it pointing straight out. Is that correct?

I'm going to call today to see about getting it into the shop, but I'm guessing it will be awhile before they can look at it. If there is anything I can try in the mean time, I'm willing."
 
"(Fuel Primer Solenoid Fun

"(Fuel Primer Solenoid Function)
(J. Reeves)

The RED lever...... The normal operating/running position is to have that red lever positioned over top of the solenoid and aimed at the other end of the solenoid, gently turned to its stop. This is the normal/automatic mode position. Pushing the key in opens the valve within the solenoid allowing fuel to pass thru it in order to prime and start the engine. Looking upon this solenoid as a electric choke results in a better understanding of it.

Having that red lever turned in the opposite direction, facing away from the solenoid, allows fuel to flow thru it to the crankcase area. One would only turn the red lever to this position in a case where the battery might go dead and the engine had to be started via the rope pull method. Look upon putting the red lever in this position as moving a choke lever on a choke equipped engine to the full closed position. Either one would supply fuel to the crankcase/engine for starting purposes BUT if left in that position while running would flood the engine.

The later model primer solenoids are equipped with a schrader valve, used for attaching a pressurized can of fogging oil etc, available at your local dealership with complete instructions.

Pumping the fuel primer bulb up hard fills the carburetor float chambers of course, but that process also applies fuel pressure to the primer solenoid.

The two small hoses leading from the primer solenoid branch off via tees to each fuel manifold section that would feed fuel to the individual cylinders.

Pushing the key in activates the primer solenoid to allow fuel to flow thru it to the intake manifold passageways. Cranking the engine over causes the fuel pump to engage which in turn sends fuel pulses to the primer solenoid via the 3/8" fuel hose.

Some engines incorporates the "Fast Start" feature which automatically advances the spark electronically so no advance of the throttle is required for starting.
Engines that do not have the "Fast Start" feature will be required to have the throttle advanced slightly.

Starting procedure: pump fuel bulb up hard, crank engine and push the key in at the same time. When the engine fires/starts, release the key so that it falls back to the run position.

Bottom line..... Look upon the primer solenoid as an electric choke.

Thousands of parts in my remaining stock. Not able to list them all. Let me know what you need and I'll look it up for you. Visit my eBay store at:

http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"
 
Back
Top