starting to have an issue once its hot and shut off for say 15 minutes I have to turn the throttled and crank before it starts. Then runs rough for a couple minutes. I tried putting new OEM NGK plugs in, didn't change. Been through a couple tanks of gas so it not bad fuel. When cold or cooled down all the way its fine. Have Hindle and K&N air filter. Saw something about running some fuel injection, have not tried that yet. Anyone else having this issue ??