markles

hi everyone, i'm wondering if anyone can give me any advice regarding my fantic 240 special. I've run the bike for approx 1 hour and discovered the woodruff key had sheared. up until that point the bike was running well. now , having fixed that problem , the bike starts but will not idle and just wants to cut out and sounds rough. The only thing i had done prior to that was take the carb off to make sure it was clean. This is a 245 engine with mikuni carb. Any advice or help would be greatly appreciated.