Tried out my 55T sprocket and front fender mud flap,they both worked great. But going up a long hill I got to the top and throttle was bogging. Would give it gas and did not want to open up and go. Turned around went back down and on the flat heading back to truck. Tried opening it up and just didn’t want to do much pass just a little throttle. After about 400 ft I hit the throttle again and it worked fine.I’m thinking it’s a fuel issue. Any suggestions. Thanks in advance. It’s a 2005 TW.