Hi I am new here and i have a few well a lot of questions

I have a car i have not used in about 6 yrs i am not quite sure what the engine is as the car is a combo of 2 cars.
the only problem i found of it being in storage is the carb at locked its self which i got loose again.

but here are my questions

how do i know if i am still getting compression

how to you know how tight to tighten the glow plug

the only way i can seem to start it is to pore a little bit of fuel into the carb to get the engine running then it stops after i do that a few times it gets fuel from the tank and i can keep it running but if i let it cut out "my idle is not set right so it cuts out quick if i turn down the throttle" after that i can not get it to start again even if i pore fuel into the carb after a bit and messing with the needle i can get it going again but its a pain. I am not sure why this is happening and i am not sure if i have it tuned right.

on the tuning where is a good place to start with the needle to tune it.

my arm is still hurting after a few hours of trying to start it and i was wondering if anyone can help i know a lot of these are noob questions but its been awhile