put a new, long piece of fuel line on the carb nipple
make sure the disk adjustment for idle is at it's midpoint mark
open the throttle barrel such that a standard straight pin will just tightly pass through the opening.
set the main needle at 3 turns open from closed
blow through the long tube,

you should be able to move just a little air through at moderate resistance
while still blowing, open the throttle to full in a smooth consistent manner
you should feel mot of the resistance to airflow deplete.

if all that works out ok,
then you have good starting points for your initial start up points.

DO NOT try to start it with the throttle barrel completely closed, it has to have a 1/32 in. so opening to run.

this has worked for 60 years or so for me, when trying to get new, used, rebuilt, or whatever motors to run well enough that they could be fine tuned for flight..


your fuel choice is ok for most model engines.