The big Wright reciprocating saws also used the Carter ND, Joe Salve (Sugarcreek Supply) has kits available for them.
The 3400 is now a runner, I may get a chance to use it a bit this coming weekend. Photos will come in a day or two.
Mark
This is not my first go around with the Carter carbs, done 2 before and so far I'm batting .500 on them. The big Wrights like my C70G has a Carter and its a NRD version. I like it better then the ND version on the Remington Super 75GB that I have.
The NRD was something to get going, you have to get it set just perfect for it to start, low needle 3/4 out and high needle like 1 3/4 out.
The ND on the Remington I never did get it figured out. It has a odd fuel pump system in it, has a checkvalve in the inlet pipe and the other in the bottom of the needle and seat assembly. I could get it to run great and would idle for a week, it just never would cut wood without running lean/out of fuel. Finally put a HL on it.
This Poulan FD with the Carter ND is a bit different then the ND on the Remington, H needle on the other side of the carb even. I have the manual for the FD and it gives the carb settings which are completly different then the Remington's.
According to the manual, once setup to begin with, if you have to make a adjustment, you have to adjust both screws together. We will see when I get the Poulan running and mess around with it a bit. Maybe I was just not adjusting the ND on the Remington properly? If I get the Poulan running right, I might have to go revisit the Remy again.
I did get a Sugar Creek diaphragm kit for this like before and even found a NOS Carter ND needle and seat assy with the built in check valve for it.
After taking that carb picture, I dug a bit deeper and found someone had installed the carb gasket upside down, blocking the impulse hole, and then I found one of the 4 reed valves broken completly off. Probably why it got parked years ago.
I have another reed valve and will put the carb gasket on correctly and see what happens.