i just got a yamaha 175 bike from my mail lady for free.. it was a (field bike)as they say. it had been siting ina field forlike 5 years she had a title so i said id take it and the box of parts encluding the carb. i fixed tha carb but im geting no spark. it could b the coil,ignition,battery,? the wiring is ok and the fuse on the +side of the batt is good. do u know what it could be? and do you have a digrahm or pic. that shows where the tube on the oil tank goes on the motor? or do u have a shop manual for the bike? thank you... my email is www.stevok.vwrocks@yahoo.com... and cell is 509-216-5528 thank you