I have a 2009 yzfr1 it's having a issue while I'm giving it Throttle it seems like it wanna bog out like the tps is not working properly it saty running fine at neutral with out given any throttle but as soon i give it a lil it lags then shoots up as you rideing it you can get to 3 quarters of throttle once you open fully it bogs like the throttle bodies are shutting close starts backfiring a lil my gas mileage is poor now to any one know what it can be