I have a fairly new 450 foreman (700 Miles). It started to miss a little then it just bogged down. It will still start up and run but when i give it gas it wants to bogg down. I thought the air filter may have been clogged but we checked it and there was a great deal of air flow coming back through the carb where it should be taking air in. Could it be out of time or do i have bigger problems? Any help is greatly appreciated.