I have a 2014 Honda Rancher trx420FA with a snorkel. Big Bore kit. Big Gun Exhaust. Power Commander 5.

I have a loud ticking noise and every time I go over 50% throttle. The wheeler bogs down. Rod isn’t bent and the push rods look good. I have no what it could be. I missing out on great riding weather. Any ideas? I want to have this fixed this week! Please help!