Soooo..... i've been at this sled for 2 weeks now, replaced almost everything i can think of and the only way i can keep it running is by pumping the primer. From what i can see visually theres gotta be a problem with my fuel system. Im gettin fuel from the tank to the pump no problem and the impulse line is brand new and working correctly. From the pump to the carbs im only gettin abit of fuel....which would lead a man to think the pump is bad but heres the thing...when the lines are dry and empty fuel fills the lines from the pump out to the carbs when i turn the motor over but then outta no where appears a huge air bubble in both lines to the carbs follwed by gas just sputtering outta the pump. It almost seems to me that something is blocking fuel from getting in and through the carbs. My thinking this is because if fuel was flowing into the carbs properly then while the sled idles those air bubbles would eventually go away. Well there not! So if someone can give me a starting point on where to look i would greatly appreciate it. Oh, one more thing. When the sled does run for a few seconds theres an enormous amount of oil dripping from the exaust. Is that because it sat for so long before and its just blowin out that standing oil? Any info would be awesome!! Im so close to getting this thing running!