i have a 1977 ds185 and the carb had 3 lines that were cut and plugged on the bike when i got it it ran fine and made decent power but wouldn't idle worth a crap and fowl out so i take the carb apart and theres no needle valve so i replaced it and now will idle all day long but dies out unless its running on the choke then it runs rich, so my question is since i didnt see a diaphram or pump in the carb diagram but there are the 3 lines that were cut and plugged are they vacume lines secondary fuel lines or vents ? i cant really tell what lines go to from the carb diagram. and cant find any info on what they go. any idea were i can get this info?