I have 08 5hp Tohatsue 4 Stroke, with very little use. I have developed a issue where the engine will stall after about 10 seconds on idle. I'm also experience difficulties staring once the engine is hot. As soon as the choke is in it wants to stall unless you keep the RPM's up. I'll be honest nothing has been done to this motor since it came out of the box. Where should I start? Thanks