97 90 HP Evinrude Primer Solenoid ?

[jamiechipper]

I am unable cold start without removing hood, turning the red primer solenoid lever to the manual position and pumping the fuel line bulb. I really do not want to pull the hood off everytime I start.

Items to note:
1. I am able to hear an audible sound when I push the primer in and have the key turned

Trouble shooting done this far:
1. There is power to the solenoid coming from the switch

I am unsure what and where to clean. I seen in previous posts, that this maybe a way to fix the problem.

Any thoughts. Thanks in advance.

 

[jamiechipper]

Re: 97 90 HP Evinrude Primer Solenoid ?

Trouble shooting done this far:
1. There is power to the solenoid coming from the switch
2. Removed gas line to solenoid to the card

- When in manual position and priming via key, NO gas flows​

- When in auto position and priming via key, NO gas flows​

- When in auto position and priming via gas bulb, NO gas flows​

- When in manual position and priming via gas bulb, gas DOES flows​

This may help answer some questions...

 

[Backlash]

Re: 97 90 HP Evinrude Primer Solenoid ?

Do you hear a "click" or any sound when you activate the solenoid? From all you've said, it sounds like a bad solenoid.

 

[jamiechipper]

Re: 97 90 HP Evinrude Primer Solenoid ?

I do hear a click when the solenoid is activated.

 

[ezeke]

Re: 97 90 HP Evinrude Primer Solenoid ?

The primer solenoid is just a valve; it creates no pressure on the fuel by itself and relies on you to provide the pressure either by squeezing the bulb or by activating the fuel pump while cranking the engine.

If the fuel pump is not working, the primer solenoid will not help.

 

[jamiechipper]

Re: 97 90 HP Evinrude Primer Solenoid ?

The fuel pump seems to be working because the motor runs with no problem once it is warm. I have problems only from a cold start. See first entry. Thanks!

 

[jamiechipper]

Re: 97 90 HP Evinrude Primer Solenoid ?

If I take apart theprimer solenoid, does the gasket need to be replaced?

 

[tashasdaddy]

Re: 97 90 HP Evinrude Primer Solenoid ?

- When in manual position and priming via key, NO gas flows

manual position, pushing key does nothing as valve in wrong location.

- When in auto position and priming via key, NO gas flows

bad ground, clogged primer ports, they are very small.

- When in auto position and priming via gas bulb, NO gas flows

correct, you are not activating the primer, just building pressure.

- When in manual position and priming via gas bulb, gas DOES flows

correct, that is what it is suppose to do.


try having someone pump bulb. key on, pushed in, you should get gas.

disconnecting primer line at top carb, primer fuel line, now turn
push key in and turn to start, you should get pulses of fuel.

 

[Faztbullet]

Re: 97 90 HP Evinrude Primer Solenoid ?

There is also a filter inside primer that may be stopped up due to degraded fuel line or debris over the years.

 

[jamiechipper]

Re: 97 90 HP Evinrude Primer Solenoid ?

Thanks Fellas -

I ended up taking apart the solenoid and cleaning... it wasnt bad, but it has seemed to do the trick.

However, now when in auto position and pumping the gas bulb I am getting a very little gas flow - must have a leak somewhere. Any thoughts... do I need to worry about this?

Thanks!