I have a 96 Tigershark that is stalling after riding for a few minutes. It runs ok at both idle and higher rpm at first, but after a few minutes riding, it stalls out at the high rpms unless I let off the throttle. It does idle fine, but the higher rpm's are giving me a problem. To note, I changed the carb recently because the old one had a bunch of corrosion inside the carb. The new one has been torn apart and cleaned. Any ideas? Thanks for your help.