no fuel cold

[eriew]

I had old style carb. Threads corroded at adjustable jet. Was planning heil-coil solution to fix leak.

Instead, I came across a used new-style aluminum Zenith. Bought Moyer flame arrestor conversion kit and scavenger tube flange so no tap was required.

Worked well first time but now it is difficult to start. Heavy hand-choking and throttle open or putting gas in the spark plug holes before starting is necessary when cold.

Then it will start put for about 30 seconds it tries to stall and I give it more throttle and it runs. Then it runs fine when warm.

Seems like only the main jet is working. Is the scavenger tube needed for cold starts. Mine is too long so I bent it. I could cut it to so there is no loop. I noticed that the intake is very dry when cold and it doesn't get wet even after cranking. Normally, with the old iron carb it would get wet when cranked and heavily choked. The old style had the internal tube which was short and straight.

Any thoughts on why she won't prime?