Ok Im stumped. I got an 88 Indy trail 488 fan. Starts fine when cold but after driving for a while and stopping even for 5 minutes it is hard to start. I have already jetted down and it still does this. I can pull it over and over fast and it will start up. Runs fine when started. Do I have a choke issue or another idea was the fuel pump cycling (have to shut them off on the trailer). Not sure what?