B missing on #2

[VER]

Had carb rebuilt for my 44 B, put it back on yesterday and now she won"t hit on #2. Checked spark plugs and they were good and hot. She"ll start and just putt away on #1... Here"s the odd thing - I was playing with the adjustment needles on the carb, and I could open the idle needle practically the whole way (5 turns or so) and it wouldn"t act any differently then it did when it was only open 1 1/4 turn. Does it sound like I"m sucking in air somewhere past the carb? What"s the easiest way to check the manifold? Any thoughts?

Thanks for the help!

 

[John T]

Its common on those single barrell carb 2 banger Deeres that at a slow idle if you kill the left No 1 cylinder plug she almost dies yet if you kill the No 2 right it dont seem to make near as much difference. THATS NOT TO SAY at fast RPM and/or under load she dont need to fire and does fire on BOTH cylinders.

You need to be adjusting that idle needle at a slow idle RPM, I start with it out about 2 turns then move it in lean till she sputters or out to where she richens up maybe a lil black smoke then split the difference.

The way I look for air vacuum leaks is to have it at slow idle then spry WD 40 or Carb Cleaner etc all around the manifold base and carb to manifold and the carb and if she speeds up and/or smoothes out you found the leak.

If its a Mag use wire core NOT carbon core suppressor plug wires and maybe try new plugs and/or plug or wire swaps to see if you find a faulty component.

John T

 

[Pete in MD]

You said..."now" she won't hit on #2.

Are you implying that before you had the carb "rebuilt" that it did hit on #2 ?

 

[VER]

Last summer it would hit on #2 some of the time, but it mostly just hit on #1. Granted, I only had it out for maybe a total of 3 hours.

When it is running on #1, with the #2 petcock open it doesn't feel like much air is being compressed in the cylinder. I had the head off last winter and the head and cylinders/rings/pistons all looked OK. Valves looked like they were seating nice. It has the high compression pistons in, not the flat heads. Not sure if that makes any difference.

 

[FWB in SK]

Your carb has the pasage in the botom of the stem blocked.

 

[BushogPapa]

You cannot tell if the valves are sealing in any way..just by looking at them..
I worked on a JD 50 a couple of years ago that had "Just had the Valves done by JD"...

They had Never re-cut the valve Seats and had installed new valves over the rough, badly out-of angle seats..!!
I did them myself and they SEAL..!

Idling, they will miss more often than not, on the Rt (#2) cylinder...
The Left Cylinder is the "Lead" cylinder and gets most of the incoming fuel/air and the other gets zilch...
Once you put a load on the engine, the carb opens and feed Both Cylinders...
Ron.

 

[Pete in MD]

Have you done a compresion test on both cylinders? Results?

Do you have a strong spark at #2 when it's running?