4 HP Johnson

Hey yall;I'm back. Got the lower end all put back together on the 4hp I asked about last fall,gear case cover ,drive balls ect. went togehter good. Started it up today for the first time, every thing went great for 15 min. started easy idled good went in and out of the gears good.after aprox 10 mins of running it started idleing rough I give it some throttle and it reves up ok back to idle and it quits. Now it wont start again I got a good spark and it seems to be gettin gas.any ideas where to start? j4rdhleod thanks six gun

Thanks fellas I got it running all by myself.Maiden voyage is set for Sunday morning Bon Voiage Sixgun