GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
You may need to clean the carburetor . They are easy to service and quite often no parts are needed if you are careful taking it apart. The idle mix screw should be 1.5 turns from seat.
Alright, i plan on running it this weekend in a 55gal drum to tune the carb, i just rebuilt it when i started having the problems. its been difficult to get this thing tuned. if it helps any i am in Arizona, would the altitude have any effect on the idle mix screw?
The idle mixture screw will end up 1/4 either way of the 1.5 setting. Are you sure the points are good and adjusted along with the timing ? Is the compression even on all 4 cylinders ? The exhaust manifolds did have a problem with the #4 cylinder getting some water when they started to get rusted and had an internal leak.
