1996 johnson 200 running Rough.

[Chuck4741444]

Motor new to me, it running rough, I have rebuild carbs, clean the holes in the throttle plate, stars and runs easy. I have sprayed carb cleaner on the carbs, throttle plate and the intake manifold.
Crank case seal, check for loss fuel lines, I cant find an air leak, I pulled the plugs and they ate all wet, could this be a bad coils ? 1 or more?

 

[Chuck4741444]

I have a 1/8 vacuum line coming fron the crank case, I plugged it, I dont know where it should go. Could the electric primer be letting fuel through it? The did have the purple white wire disconnected, i added a plug and reconnected it, it doest can the rough running either connected or disconnected.

 

[jimmbo]

On the Video, it sounds okay, granted 3 of the 6 could be not firing and it would still sound not too bad. It is a Looper, and they are a bit more jumpy than a Crossfire
First things first, What are the Compression Numbers? Saying they are fine means nothing...
Can the Spark jump a 3/8" Gap at all Cylinders?
Where is this line/hose on the Crankcase coming from, and what is its Size?
Did you set the Floats correctly?
Once you reinstalled the Carbs, did you do what is called a Link and Sync?

 

[Chuck4741444]

The hoes is an1/8 from the front lower of the crankcase.
The floats were set, the carburetor comes off without disturbing the linkage , its all connected on the throttle plate.the throttle,
Ill check the spark gap,
And make sure coils are firing, the one thing I may have done is i used the nylon washer under the needle set,

 

[jimmbo]

That Hose, is likely part of the Oil Recirculation System, and needs to be connected to where it is supposed to go.
You will need a Spark Gap Tester to test if the Spark is Strong enough