I have the same exact problem, it takes anywhere from 3-6 turns of the key to get the engine to start and continue running on the first start of the day. I have a 2007 115 e-tec, notified the dealer and their checking with BRP on causes. Did you ever get it resolved with your motor? I also get some hesitation and the occasion stall when the engine is not warmed up yet, but the issues are only from idle to 2000 rpm. I've read some tech specs on the engines and they have several features that save gas and reduce noise at idle. Instead of pulling air through the main intake they use a smaller intake hose/pathway at idle to reduce noise and also run most of the exaust out of the lower unit during idle, also to reduce noise at idle or very low rpms. Once you get close to 1800-2000 rpms these things change and my theory is that a valve(s) from these variations may stick at startup or while throttling up past 2000K. Once warmed up my engine starts first time and runs flawlesssly. I've also noticed the"pressurized fuel system" needs to be primed sometimes. Can't tell if this helps make the first startup easier or not as I've not gotten consistent results after priming. Maybe the fuel system has developed a small leak somewhere that makes it difficult for the fuel lift pump to pressurize properly??? I'd be really gratefull to know if you've found the cause of your issue. I'm in Maryland and the problem seems much more apparent when the weather gets cool/cold.