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#1 bread320i OFFLINE  

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Posted December 28, 2013 - 07:35 PM

I recently acquired a 1968 Evinrude Skeeter 16. This is my first sled project. I got a few problems. It runs, idles great but has bad throttle response and top end. I have cleaned the tank, carburetor, added fresh gas at suggested 50:1 mix, and installed new Champion J6C plugs.

I believe it is running on both cylinders as both plugs come out dry after running. I have to have the main jet out as far as possible just to get enough rpm to drive.

2nd problem is the track. It is splitting at the seam. I really do not want to replace the track. I am hopping somebody has a repair method?

Any help is greatly appreciated


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#2 toomanytoys84 ONLINE  

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Posted December 28, 2013 - 07:48 PM

I'm no sledding expert. But here are some questions I have

What color are the plugs after running.

does it die at wot or when you give it any gas

is this a 2 into 1 carb

Does this model have a fuel pump?

Edited by toomanytoys84, December 28, 2013 - 07:52 PM.


#3 Talntedmrgreen ONLINE  

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Posted December 28, 2013 - 07:49 PM

I know of no good method for repairing a track, and you do not want it detonating under your arse, at any kind of speed.  You will be replaing more than just the track when she goes, and it never happens near a road for easy recovery.

 

You're not going to get great throttle response, but I'm guessing it just bogs when you hit the gas?  2-cycles are usually pretty easily tuned by reading the pugs.  I'm not familiar with the adjustable jet you have...mine always required different size jets be installed for changes.  I'm betting it's getting too much gas. 


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#4 bread320i OFFLINE  

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Posted December 28, 2013 - 08:00 PM

The plugs are a dry and white / brown residue.

The carburetor is Bendix Zenith single venturi.



#5 bread320i OFFLINE  

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Posted December 28, 2013 - 08:10 PM

My plugs look very similar to these shown.

Attached Thumbnails

  • sparkplug.jpg


#6 Appalachian OFFLINE  

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Posted December 28, 2013 - 08:17 PM

http://www.hardcores...4-vintage-sled/


There's some good guys on this site.
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#7 superaben OFFLINE  

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Posted December 28, 2013 - 08:21 PM

If the engine hesitates while accelerating, you need to enrich the mixture.

 

Ben W.



#8 bread320i OFFLINE  

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Posted December 28, 2013 - 09:01 PM

If the engine hesitates while accelerating, you need to enrich the mixture.

 

Ben W.

 

Anymore fuel the main jet will pop out of the carburetor. The fuel pump is pumping good. I checked it while pulling the recoil and pulling it while running. Pumping plenty of fuel.

I cleaned the carburetor the best I can twice. It is acting like it is plugged somewhere.



#9 toomanytoys84 ONLINE  

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Posted December 28, 2013 - 09:13 PM

Gotta be a plug in the main jet circuit. You should be able to drown that thing with the screw wide open

Does this carb look like a Tecumseh throttle adjustment screw?

Edited by toomanytoys84, December 28, 2013 - 09:13 PM.

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#10 bread320i OFFLINE  

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Posted December 28, 2013 - 09:22 PM

Here is the carburetor that is on the sled.

 

http://www.ebay.com/...xp=mtr&x=24&y=4

 

721196762_tp.jpg

721196646_tp.jpg



#11 superaben OFFLINE  

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Posted December 28, 2013 - 09:44 PM

Adam, that sucker is plugged bad if you can turn it out that far.  Did you replace the needle and seat?  Sometimes that hangs up and causes a "lean" action.

 

Ben W.



#12 bread320i OFFLINE  

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Posted December 28, 2013 - 10:01 PM

I cleaned it, and hand cut new gaskets. Cleaned everything with an aerosol can of carb cleaner. All passages big and small seemed clean. Last time I removed the carburetor the bowl was full of fuel.


Edited by bread320i, December 28, 2013 - 10:05 PM.


#13 toomanytoys84 ONLINE  

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Posted December 28, 2013 - 10:07 PM

Get it running and spray starting fluid around the carb and see what happens. I'm not doubting your work or skills but you have something causing it to starve for fuel.

#14 tractorgarden OFFLINE  

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Posted December 29, 2013 - 12:29 AM

Adam,If you have access to a ultrasonic cleaning washer,remove the bowl,adjustable jets, float,etc. put water and some simple green in it let her clean for 4-5 hours and blow out with air. hope this helps. There are a lot of vintage sled salvage yards,find a good used track or buy a new one. Shawn



#15 tractorgarden OFFLINE  

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Posted December 29, 2013 - 12:34 AM

Oh yeah,that sled should probably have points and mechanical timing. Check that it is in spec.and beware of crank case seals.....may cause lean burn....and melt down.


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