I just baught the boat used with this motor 2001 Johnson 115 4 cylinder. The motor runs great once I get it started, hence the help. The motor is very hard to start when cold, even on warm to hot days. It takes a really long time to get started. I always pump the priming bulb, Push the choke in when initially trying to start it, fresh fuel, changed spark plugs, it seems as if it is not firing at all, then after a couple long minutes it will act like it is trying to start then it finally starts and runs like a champ. I am at a lost I've never seen a motor that runs this good that is so hard to start. Any suggestions?