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Dean1956

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Discussion starter · #1 ·
awhile back I posted something about my 1655 running rough and then quitting completely. Many suggestions where given from points to vacume leak to carb problems. I ended up pulling the intake off and found a small leak by plugging off where the carb sits and filling the manifold with water, I plugged that with RTV then replaced plugs, points and condensor, I also replace plug wires and put a carb kit in that included a new adjustment screw for the high mixture. After this was done I turned the key and it started instantly and basically ran perfect. About 3 days ago it started all over again, it start right up but runs terrible, it smells like it running rich and as I look down the carb while running I see plenty of gas spraying out the small tube at the top of the throat of the carb. No adjustment on the high end screw helps. I did check the ohms on the coil which read 4.6 but don't know if that means a thing since I cant find a spec. The plug wires I bought were from auto zone which I just cut to length, then did my best to push them down on the pins in the coil. I have a spark tester that clamps on the plugs and then into the plug wire and you can watch the spark through the small window on it, I thought the spark looked very week, but that was compared to looking a the points while running. Could my coil be week, are my plug wires not putting enough power or did my carb get a piece of junk sucked up in it again if that was part of the problem in the beginning?
 
Pull the plugs and inspect for carbon fouling, the gap, and the quality of spark at the tip of the plug.
 
Dean, a good spark is blue/white, a yellow/red spark is weak. I had more trouble with the points than anything else on my ole 1855 which is why I converted it to electronic ignition. The carbs are fairly simple and (at least mine didn't) give much trouble. One thing to check is if you still have the metal float in the carb take it out and shake it a little, if you hear gas sloshing around you've found your problem--float has a hole in it and that will make it run rich as heck!!
 
Discussion starter · #8 ·
I fiddled with it tonight again at my grandsons request, he loves papas tractor. I pulled the plugs and found that they were very black, cleaned them up and pulled the intake and carb and put a spare on I have laying around. Fired it up and same exact thing, barely would run at idle and die upon giving it more gas. After dinner put the original manifold/carb back on and started it up again, same thing so I thought to spray starting fluid around intake and carb, low and behold the engine picked right up and ran smooth for a bit, did it again, same thing. I just sealed that manifold up a few weeks back, guess if either sucked through or came out of the small area where it was leaking. The original time I resealed it with JB Weld at the request of something I read on this forum. Is JB Weld the way to go to seal the two halves?
 
Discussion starter · #11 ·
Yamabond 5 is what I used, seems a little on the runny side but, after you wait 1 minute like directed, it tacks up. I'll wait till morning before starting it up. Hope this last longer than JB Weld, infact I would not recommend JB, it was soft when I pulled the 2 halves apart and I know it was hard when I sealed it before.No good for gasoline
 
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