I have an old McCoy red head .19 engine and it's very hard to start. The fuel tube was taken out once and I don't know if it was put back in the right way. It has a very small hole in it and I don't know if the hole is supposed to face downward or straight backward toward the crank case or somewhere in between. I think the position of that small hole in the fuel tube has a lot to do with how it starts and runs. How do I adjust that?

That's a control line engine. If memory serves me, the hole in the spray bar goes back toward the cylinder.

Bill, Waco Brother #1

actually it should point straight down the throat,just make sure your fuel is at least 25% oil preferably castor oil whe you run it .

Actually, if you cannot see the hole, it will work fine. I've flown the redhead, front intake McCoy 19 in CL stunt a good bit and really like them. Mine have Super Tigre NVA's in them, because they came (used) without any NVA. I fly them on Sig Champion 10% nitro, 20% oil, half castor, half synthetic, with an APC 9 x 5 prop.

Thanks for the reply folks. Next time I'm in the basement I'l get that adjusted where it ought to be. ONE more question. Can I reverse it to put the fuel hose connection on the other side?

yes but if the needle valve is on the exhaust side you could get burned from the exhaust gases depending on how you have to reach the needle valve