When to quit?

bktheking

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Jul 29, 2008
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5,057
Re: When to quit?

Pure copper core is probably the worst to use in outboard sparkplug wires. Used in salt water, they turn to green dust before the sun goes down!
Buy a reel of the original OMC plug wires.

I don't think they are copper core, I F'UP in saying that, they are the proper wires sold by Sierra. Maybe they are copper, maybe steel, I just know they work on outboards and it is the correct stuff.
 

Haffiman

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Dec 17, 2009
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Re: When to quit?

I don't think they are copper core, I F'UP in saying that, they are the proper wires sold by Sierra. Maybe they are copper, maybe steel, I just know they work on outboards and it is the correct stuff.

Sounds much better!!!

My present address as stated may look salty, humid and warm, however my main experience, roughly 40 yrs, is from quite a different environment:
 

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bktheking

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Re: When to quit?

Hey that looks like my part of the world in about 2 months, isn't snow fun!
 

Haffiman

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Re: When to quit?

Same boat, both taken in January, just 20.000Nm apart!
I think I prefer the last.
 

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1946Zephyr

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Oct 21, 2008
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Re: When to quit?

No, the reeds are fine. 80 PSI on an old QD like this, is decent. The compression is dead even with the two. So count the reeds out for being the problem.

If the carb is nice and clean inside, I highly doubt if this is the problem too.

Back to the ignition system:

Did you replace the spark plug leads when you rebuilt the ignition system? A lot of people will replace the coils without replacing the spark plug leads. Even if they do, often times the connection from the coil to the spark plug lead is not very good. The faces of the coils also have to be lined up with the machined face perfectly or you're spark will not be perfect. Those who run the old spark plug leads after changing the coils will often overlook the spark plug boot connections too.

I still think your issue may be in the ignition system.:cool:


As stated in my first post. :D:D:D
 

Steve A W

Petty Officer 1st Class
Joined
Jun 23, 2009
Messages
267
Re: When to quit?

Have You checked that the correct wire is going to the correct plug?
Been there , Done that. It about drove Me crazy[er]!
Good Luck
Steve A W
 

1946Zephyr

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5,556
Re: When to quit?

So, it looks as though the plug wires may not have been mated to the "new coils" properly?

If you plan on using your old spark plug leads with a new coil install, you still need to remove them from the mag plate. Once you remove them, trim off 3/8" off the end and insert it to the coil. Spray some WD-40 on the end of the lead and twist it into the connection on the coil. If airlock is preventing you from seating the spark plug lead into the coil all the way, then you need to insert a pin along side of the spark plug lead to relieve the air. The spark plug lead needs to be fully seated in the coil, or your connection may not work.

Once you see the spark plug lead is seated in the coil connection, then install the coils and spark plug leads correctly back into the mag plate.

Many people go through the expense of replacing the coils, but don't go through the proceedure of making sure the connections from the spark plug lead and coil is 100% true. Connections here and the boot assembly often times fail.:cool:
 

FHB

Seaman
Joined
Aug 22, 2010
Messages
64
Re: When to quit?

Folks,

I put a spark tester on and noted great spark from one plug and none from the other. I firmly screwed the plug wires into the coils with no change. I changed the spark plug wire to this side with no change. I then looked at the inside of the flywheel and noted a scored area. A small iron washer had stuck to the magnet and rubbed between the flywheel and magnets. Part of the post on the magneto plate that the magnets sit on were eroded. The permanent magnets on the coil which is producing no spark is notably deformed. So at last I am certain that a big part of my problem is no spark on one cylinder because of a damaged coil.

I am getting lovely spark on the other plug so I hope the flywheel is not damaged beyond use. I will buy a new coil and hopefully get spark on both cylinders.

I will report back after that.

Frank

Frank
 

samo_ott

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5,125
Re: When to quit?

Do you have any pics of the damage? I'd be interested to see it.
 

wilde1j

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Joined
Apr 15, 2002
Messages
5,964
Re: When to quit?

Once you get spark on both cylinders consistently, try varying the mixture adjustments a little until you get the motor to run, then adjust them both properly. The numbers in the shop manual are only starting points.

BTW, in spite of all the stuff here about reed valves, they only rarely fail.
 

FHB

Seaman
Joined
Aug 22, 2010
Messages
64
Re: When to quit?

Folks,

I got it running! One of the new coils I installed when somehow I picked up a little washer that stuck against the magnet on the flywheel. It ruined one of the coils.. I replaced it and got good spark. The motor got really hot and I turned it off. MNo water was comming out and I suspect the pump is gone.

The motor ran only at wot at about 1/2 of the rpm's I'd expect. It ran really smoothly. I think it needs a sychronization and I have the manual and wil do so. Thanks to everyone for the guidance and support!
 

FHB

Seaman
Joined
Aug 22, 2010
Messages
64
Re: When to quit?

The synchronization was easy wit the manual in hand. There was however an intolerable amount of slop in the tiller-throttle-magneto linkage.It looked a little complicated for a newbie but I dismanteled the tiller handle and took out and cleaned everything.

The teeth on the vetricle throttle gear were worn. Instead of replacing it I put a washer on the brass rod which pushed the horizontal gear a hair further onto the verticle gear and it worked great and saved me $30 for a new gear.

The plastic pin that ran through the base of the verticle throttle rod was sheared off and there was alot of slop in the linkage. I think now that the linkage has no play, I can have better, co-ordinated movement of the magneto, throttle linkage and the engine aught to run better.

The last step is the water pump . I hope to take it to the lake for a shake down cruise and maybe a decarborization this weekend comming up. I have a 14 foot jon boat and I hope to go into the shallower waters of the Roanoke River to fish Stripped bass which start running soon.

[COLOR="DarkRed"]I would like to thank everyone who has helped me through this project.[/COLOR] It was frustrating at times but in the end lots of fun.It was also a great father-son project.

Thanks

Frank
 
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