Hi All,

I have had a case where I think I was trying to run an engine too lean previously. It was running ok, idling fine and throttling up to about 1/3 but then would die. I would try to adjust the HS valve but never by enough to make a solid difference. Finally someone mentioned that I was probably way too lean, so I should try to find the factiory settings or go 1 to 1 and 1/2 turns out richer. The next time I tried it, it seemed as though the setting was better at mid - full throttle but the engine died relatively fast

I says to turn needle CW full in, and then open 2 and 1/2 turns. Does 1 turn mean 360 degree (12 oclock to 12 oclock) or does 1 turn mean 12 to 6 in R/C world ? I ask because on some Nitro truck you tube video's they refer to 1 turn and it is actually 1/2 a turn (?)

I always had the habit (maybe bad habit) of priming the carb manually with a few drops directly in the carb mouth. Also from the truck video's I see where a thumb on the muffler hole (when cold) aids to get the fuel in teh line right up to the carb.

Today I tried to get it going and as usual it starts easily BUT doesn't keep. I almost seems as though it was not getting enough fuel and after it burnt the primer fuel in the carb it stops.

What should be my trouble shooting steps ?

Thanks