15 evinrude ignition problem

[knobby]

Here's my latest problem guys, I tuned up my 1986 electric start, 15hp evinrude, ran it about 30 mins on the boat, it ran great. Then next time (couple days later) I started it and ran it about 1/4 throttle for 5 mins and it died as if the kill switch was pressed, which it was not. It would not restart, I got it home and there's no fire to the spark plugs. Where do I start to figure this one out. Thanks in advance for your advice and help.<br />Knobby

 

[rickdb1boat]

Re: 15 evinrude ignition problem

knobby <br />I would bypass the kill switch first and see if it fires.

 

[knobby]

Re: 15 evinrude ignition problem

Ok, how do I do that. Yeah, this guy is dumb.

 

[OBJ]

Re: 15 evinrude ignition problem

Knobby, is this an electric start at the tiller or a remote? Look for a single amphenol connector on the motor and separate it. It should have a black or black/yellow wire going to and from it. If the engine starts, then the kill circuit is at fault. If the engine does not start, then it may be the power pack at fault or the power coil under the flywheel.

 

[rickdb1boat]

Re: 15 evinrude ignition problem

What Jim said!!

 

[knobby]

Re: 15 evinrude ignition problem

Electric start push button on the lift bracket with the kill switch on the end of the tiller.

 

[OBJ]

Re: 15 evinrude ignition problem

Knobby...dumb is an ugly word here. Try "unfamiliar" with the outboard. Let us know what you find.

 

[knobby]

Re: 15 evinrude ignition problem

Thanks Jim. I'm more familiar with the word dumb, which comes from leaving the plug out during launch more than once while duck hunting at about 20 degrees. I'll try your advice in the morning and will get back to you. Thanks for the help.

 

[OBJ]

Re: 15 evinrude ignition problem

Knooby...if ya' ain't never forgot to put the plug in....then ya' ain't never been on the water!

 

[knobby]

Re: 15 evinrude ignition problem

Well, maybe I ain't as umfamiliar as I thought.

 

[OBJ]

Re: 15 evinrude ignition problem

LOL!! You got it dude!!

 

[knobby]

Re: 15 evinrude ignition problem

Ok, day 2, I bypassed the kill switch, still no fire in either plug, what's next? Powerpack or coils or both? Thanks Knob

 

[OBJ]

Re: 15 evinrude ignition problem

I would go with a power pack. I don't believe both ignition coils to go at the same time. The pack is the most likely part that's bad. Have you ever had to change it in the past knobby?

 

[knobby]

Re: 15 evinrude ignition problem

Hi Jim, no I just bought the motor a couple months ago from an old retiree. Looks like it has never had a bolt twisted on it. I changed the LU oil and cleaned the carb, put new plugs in it and it ran fine first time out. This happened second time out. I'll get a powerpack and see if that's it. What's the chance of it being something else, say under the flywheel pickup coil or something? thanks pal for your help.Knob

 

[knobby]

Re: 15 evinrude ignition problem

Jim, I also have a buddy who has some extra powerpacks that are not the same part number as mine, but look the same. I posted those on another list asking about interchange, what do you think about one of those. I rather get a new one if that's the real problem, but wish there was a way to test if that's where my problem is before I pay that for one I might not need. But I don't want to screw up something worse trying to swap out on a test. any Ideas? Knob

 

[OBJ]

Re: 15 evinrude ignition problem

If the packs are from other 9.9's or 15's I would try one. Sometimes the part numbers are different because of the way the the wires from the pack are terminated or the length may be different. Other parts that may be bad is the power coil under the flywheel or the timing coil also under the flywheel. An OEM manual would tell you how to test these parts without pulling the flywheel. The timing coil hardly puts out 5 volts at best. The power coil puts out (if I remember right) a voltage in excess of 150 volts. The ignition coil does the rest for voltage build up. The power pack is generally the bad guy 90% of the time. Keep us posted on what you find. By the by...if your not sure of when the last time the water pump impeller was changed out, this may be a good thing to look at. If you plan on keeping the motor and doing the maint and upkeep yourself, I highly suggest getting an OEM service manual. Tons of good stuff in there.

 

[knobby]

Re: 15 evinrude ignition problem

thanks Jim. I'll just get a new one anyways. Also, I'll pickup a OEM manual so I won't appear so "unfamiliar" with the 15 hp. Do they make wone that says "outboards for dummies" Many thanks and if you ever find yourself in Arkansas I owe you lunch. Knobby

 

[OBJ]

Re: 15 evinrude ignition problem

LOL!!! I been tinkerin' with the darn things since I can't remember when and I still don't know it all. Learn something new every time I read the posts on iboats. Get the manual and take good care of her and she'll get ya' home every time. Good Luck Knobby. Keep us posted.

 

[Boatist]

Re: 15 evinrude ignition problem

Knobby<br />I do not know your year but my 1975 just has a coil under the flywheel used for both plugs and a kill switch.<br /><br />One thing I would check on your motor before you buy a power pack is the flywheel KEYWAY. If this keyway breaks you will get no spark on either plug. The keyway makes sure the magnet comes by the pickup coil at time the points open so can fire both your spark plug coils. Not uncommon for this keyway to sear after someone has had flywheel off. If someone oiled the tapered flywheel mounting surface or did not get tight enough will break key. also if motor hit something or prop breaks out of water and drops back in. Anyway check it first it is cheap.