So I have a 2014 Honda Rancher trx420FA

so before I explain my issue. I have a Big Bore kit. Big Gun Exhaust and Power Commander 5.

I have a loud ticking from my motor. It’s very noticable. I don’t have a bent rod. Push rods look good. On top of that noise if i doing anymore then 50% on the throttle the wheeler bogs down it does not like it at all! Any ideas!? Please help! Have a whole week of sunshine and I can’t ride! :