Has anyone put a manual choke on a carbed 650 Prowler. I have one with big bore kit 700cc plus head work from Speedwerx and exhaust. This unit will start when cold and when hot but will not start when warm like sitting for 30 mins to 1 hour after a run without cracking the air box lid. I think the ele choke is open and making it to rich to start the warm motor. Any ideas??