i have a 06 rmk 600 h.o. it is a carbbed sled, it is jetted and clutched for iowa which is were i live. it runs and idels perfect going forward. when i push the reverse button it idels down and back up like it suposed to, but idels like its flooded and when i give it gas it bogs and then back fires. it wont move in reverse, any ideas whats wrong would be awesome. thanks