Evinrude 15032 starting problems

[Fastwin18]

Hi Guys,

I was wondering if I could borrow your expertise for my first rebuild.
I recently got my hands on a Fastwin 18 HP to fit a small runabout that I’m currently building. It’s an Evinrude 15032 from 1960, and these are pretty rare over here. So I consider myself lucky.
When I bought it I made sure it ran (jest a few seconds), but it looked as if it had been sitting idle for decades. This was confirmed once I started working on it.
By now I did a complete rebuild it, including new piston rings, crankshaft bearings, new gaskets throughout etc. and new paint job.
I just pieced it together and I’m very pleased with the results, considering this is my first attempt at doing this.

But…… It won’t start!
When trying to start it occasionally gives a loud bang from the exhaust, but that’s about it.

Good thing it it now has very good compression.
I triple checked the timing, both using the feeler gauge method as well as using the timing marks on the armature plate, both plugs have a good spark.
The front coil is connected to the top spark plug.
High speed plug is turned 1 turn, the low speed plug one and a half.

The strange thing is that after a couple of attempts at starting there is fuel leaking from the front side of the carburator along the choke valve, and I can’t figure out why.
I took the carburator apart, all seems fine. The needle is seated properly and also closes down fuel entry when the float is horizontal. I also confirmed it is closed by blowing on the fuel line to the carburator. The spark plugs seem to be dry after a couple pulls.

All in all I suspect it to be fuel problem, but until now I cannot find the culprit and I’m hoping anyone of you might have some pointers.

Any help is greatly appreaciated.

[Matthew Pieklik]

Swap your plug wires. Make sure the correct coil to the correct plug. Been there before.

[Fastwin18]

Thanks for your prompt response!

The front coil is supposed to go the top cylinder right?
I’ll try it anyway tomorrow morning.
Any idea why there is fuel leaking from the carburetor?

[frankr]

Plug wires on wrong plugs naturally is first thing to come to mind. But yes, front coil goes to top cylinder.

“Good” spark will jump 1/4″ open air gap. Will it?

It is possible it is getting too much gas (flooded). That also might explain the fuel dribble. Close the HS needle down to 5/8 to 3/4 turn and try choking it less. Is the motor sitting reasonably level when attempting to start?

[Fastwin18]

Hi Frankr,

Plug wires on wrong plugs naturally is first thing to come to mind.

Plugs are brand new Champignon J4C, also tried the slightly hotter NGK B6S
The ignition is completely new, including spark plug caps and wires

I didn’t test whether the spark jumps the 1/4″gap as I haven’t got an apropriate tester. My tester only gives a spark, I cannot set the distance. I will try to order one tonight.

As for your other suggestions, I will try these tomorrow and let you know how it turned out.
And yes, motor is reasonably level. Slightly tilted forward hence the dribble I guess.

[johnny]

If gas is running out the front of the carb the float chamber valve is not closing. Make sure the cork float is set properly and that it is not rubbing against the inside of the float chamber anywhere.

[Fastwin18]

Johnny,

Thanks for your help.
That was initial guess, already checked that. The needle valve cuts of the gas when the float is horizontal.

[frankr]

You wrote: “And yes, motor is reasonably level. Slightly tilted forward hence the dribble I guess.”. There ya go,.thats the reason combined with choking more than necessary (?) You are seeing symptoms, not necessarily faults.

[jimk]

You can make a spark tester at home ! Google home made spark tester and set you gap on it for 1/4 inch

[wedgie]

I know you say you have good spark. Even so I would check under the flywheel for rubbed wires. Very easy for this to happen unless you take great care to route the wires away from the moving flywheel. I have acquired a few that have brand new ignition damaged this way and then given up on . I repair with heat shrink and away they go.

The backfire through the carb usually indicates reversed wires and that too was my first guess.

• This reply was modified 4 years ago by wedgie.

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