87' evinrude 30hp hard to start

N1NE1

Petty Officer 1st Class
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Sep 21, 2008
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My 87' evinrude 30hp outboard is hard to start,it will fire right up if i pump the choke/primer knob then stall when that fuel is out.if i do this for about 5 minutes it will eventually start and run just fine with no problems. Once its starts and warms it will fire right up again and again without any issues. Took off carb and cleaned but that didnt help. Motor says mixture 100/1 but i run it at 50/1 anyways. Any idea what could be wrong. Its definetly a fuel issue but which one
 

bktheking

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Jul 29, 2008
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5,057
Re: 87' evinrude 30hp hard to start

Have you checked compression readings?
 

N1NE1

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Sep 21, 2008
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Re: 87' evinrude 30hp hard to start

Yes compression is over 100 on each
 

bktheking

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Re: 87' evinrude 30hp hard to start

This is how the system works:

Manual Primer

The manual primer operates as both a fuel injector and an enriching device. The fuel injector operates w/o air being drawn through the motor. The enriching device is an alternate path from the carburetor to draw fuel through the primer and add more fuel during cold-start.

Put motor in neutral
Place the throttle in the start position.
Cycle through one or two full pull-push operations on the primer knob. This will squirts fuel into the intake manifold.
Pull out primer knob one half-to full out. This will engage the cold-start enricher circuit.
Pull the starter rope, or press start button until the engine starts.
As the engine begins to run, slowly slide the primer knob in. The rate of choke disengagement will vary greatly with each individual outboard. Some require immediate disengagement, others require slow disengagement. Know your outboard.
Visually inspect tell-tale for solid stream indicating proper cooling.
As the choke is disengaged and the motor warms up, slowly back the throttle off from start to the shift position.

Are you starting it this way?
 

N1NE1

Petty Officer 1st Class
Joined
Sep 21, 2008
Messages
242
Re: 87' evinrude 30hp hard to start

I havent tried doing this, just thought i was supposed to pull it out a few times to get it started at first... I will try this way tomorrow and get back to you.just bought this nmotor, it was in someones basement for close to 15yrs without use. Very very clean motor, looks new.thankyou
 

bktheking

Vice Admiral
Joined
Jul 29, 2008
Messages
5,057
Re: 87' evinrude 30hp hard to start

Sounds like your procedure is factoring out the "cold start part" , I wouldn't have known either unless i found it in another thread. Good luck!
 
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