People hate noise, people hate unpleasant smell. Well, I hate engine noise and its exhaust cause i had a damn problem tuning and starting my LPG engine.
Me and my friend tune and crank the engine for few days and it seems about to start but loses momentum a few a couple of cycles.
At last, Prof came into play. He diagnose step by step, testing parameters, finding out the possible problem and uses some tricks and voila. Engine starts really easy and operating strong. I like the strength of combustion.
Get more tuning, massage the engine out and let it run lean.