O.S. 90 FSR Absolutely mint and new in box with all papers and instructions as from the factory. These engines are very underrated for stump pulling power and are fitted with the famous O.S. 7D carb for excellent throttle and transition. I also have the correct MACS #1290 muffled tuned pipe and the correct 3 bolt MACS #2940 standard header for extra if interested. See my other add for O.S. 1.08 BX-1 for pictures of pipe and header Both header and pipe are absolutely new and unused.