model #j150exeis serial# Q 02987277 . i got this motor and boat 3 months ago with 10 hours on total rebuild . it starts hard , sometimes 1 minute of spinning over before starting .lately it will start alot better within 30secs , after warmup 3 secs . it seems to run good , but later it will not stay running .it will run for 20 - 30 secs and skip and stall . it will start right up again immediately and repeat . last time out i took it home and flushed it with fresh water and when it started it ran for 10 secs sped up 1000 rpm by itself and stalled . it took right off running again off the key but repeated the problem . its a bummer having a boat you cannot trust to fish out of . if you can help i would really be appreciative . thanks