Never, ever, use a starter, even on a new engine. Before you start the engine the first time for a day of flying, AND BEFORE YOU CONNECT THE GLOW PLUG CLIP, open the throttle fully, choke the engine with your finger over the carb for three pull thrus. Fuel WILL dump out on the ground, so have a rag handy. Now close the throttle to your normal low throttle flying setting, attach the glow plug clip, and flip the prop backwards. Will usually start in 1 to 3 back flips. After the initial run of the day, start it at low throttle, backflipping once, and it will almost always start on the first flip

and: Idle mixture adjustment. Screw the idle mixture screw IN (lean) 2 FULL turns from the factory setting, in addition to the main needle 1 1/4 turns from closed. This willl get you very close to the optimum setup.

I took this from http://www.rcaerobats.net/OS160_Setup.htm

Seems like you really have to lean the engine on idle from the factory setup to get it running right; Then, for that first flight of the day it has to start wet, then after you can prime normally. I always prime, but then I don't have a Perry on my 160.

I do take care after priming it like that; sometimes you don't even need to flip the propellor, just touching it already makes it start...watch the meat grinder!!!