[SEL] Witte crash course.

[Curt]

Witte experts,
Was helping an engine buddy last night trying to get his new Witte 
(4HP?) running. Did manage to get it chugging along for a while but it 
needs some mixer help. Here's several questions I hoping the experts may 
have answers to.

-The mixer screws in the side of the head with NPT threads. The mixer 
body is loose yet not so loose that it can be turned another full turn 
to tighten. Is there a missing  locking ring? We were thinking about 
adding a conduit locking ring. The looseness really screws up the 
TG/butterfly rod.

-It looks like the mixer is a kero run, gasoline start. The gasoline 
start is on the front side. He is going to run it on gasoline only. 
There is a little cup just in front of the throttle plate. Is this for 
priming the engine?

-The round plate about 2" in diameter that has a bunch of holes in it. 
Is this a compensator valve like on FM's and IHC M's? If I screwed this 
all the way in it floods in one suction stroke. I had to unscrew it so 
there was a 1/8" gap between the plate and the mixer body to get it to 
run. There is a VERY stiff spring behind this plate. That doesn't seem 
right. I'm thinking this should be a soft spring to allow the valve to 
unseat. Does anyone know what the correct spring for this is?

I sure will appreciate any input the experts have on this engine.
Curt Holland
Gastonia, NC