You guys have helped me before so here goes: I have an 80' Jag 3000 F/C. I just rebuilt the engine over the summer and cleaned the carb out. I keep it in a heated shop and it starts up right away, however, if I leave it sit out overnight I cannot get it started. If I pour a little gas in each cylinder she fires right up and runs great. So, it's definetly a fuel problem. Could the choke not be functioning correctly? Is it possible to add a primer pump to the carb and does anyone have info on how to do this? Thanks for your help. Happy sledding!