1984 Evinrude 15hp. floods

[cyber2bob]

I have a 1984 15hp evinrude. It floods every time it is tillted up even momentarily, then needs much cranking to clear and restart. This happens even if I only tilt it to change angle pin then drop back in like less than 1 minute. Plugs get wet etc. What can I change or do. Not a mechanic just a bit of a handy man type. Thanks in advance for your posts. Bob

 

[SparkieBoat]

Re: 1984 Evinrude 15hp. floods

sounds like you may have a float/needle valve issue..that would be my first thing to check.

 

[Chinewalker]

Re: 1984 Evinrude 15hp. floods

Flooding when tilted is a new one. If the carb is running gas through when tilted, it would drain out the front. Even with the carb cover in place it shouldn't puddle that much.

 

[cyber2bob]

Re: 1984 Evinrude 15hp. floods

sounds like you may have a float/needle valve issue..that would be my first thing to check.

Thanks, can't find a sediment bowl so no float, after filter screen fuel line appears to go right to carb. I think I will buy a book so I know what parts I'm talking about. I'll be back. Bob

 

[SparkieBoat]

Re: 1984 Evinrude 15hp. floods

never heard of a carburetor without a float and needle valve...even my 5 hp lawn mower has one. But I do not know everything.
Good luck
Sparkie

 

[Chinewalker]

Re: 1984 Evinrude 15hp. floods

The bowl is the bottom half of the carb casting...

 

[crxess]

Re: 1984 Evinrude 15hp. floods

Not logical!

Does the motor run properly in use? if so, the needle valve is working.
The float could be set to high causing fuel to spill when tilted. However the fuel would run out the front of the carb. this should not effect starting.

More likely, low fuel level. Tilting breaks flow, air entering fuel path. Low vacuum causes slow recovery and start.

Test this by - tilt motor - return to down position - PULL CHOKE - attempt start.

Check for loose carb or leaking carb to manifold gasket.

 

[kenmyfam]

Re: 1984 Evinrude 15hp. floods

When were the carbs last rebuilt ??

 

[Rick.]

Re: 1984 Evinrude 15hp. floods

Follow this link to see the parts break down for your specific motor.
http://shop2.evinrude.com/ext/index.aspx?s1=bf6ad09c53cead335fcfd8a6471c0f7f

And here is an excellent read for all us 9.9 and 15 owners. Packed full of information.
http://www.sschapterpsa.com/ramblings/OMC/OMC info.htm

Best of luck. Rick.

 

[cyber2bob]

Re: 1984 Evinrude 15hp. floods

never heard of a carburetor without a float and needle valve...even my 5 hp lawn mower has one. But I do not know everything.
Good luck
Sparkie

Found it and now have rebuilt but no ignition even tho spark shows and sediment bowl has fuel, I started another post on this issue. appreciate all replies.