daren1093251

FIrst post here, so my apologizes if i'm posting in the wrong section. Anyways, getting to my point. I purchased a 1978 Yamaha GT80 for a great price, 40$ and the guy is the first owner so I got the ownerships. Bike is in pretty rough shape, but for the price I coudn'lt turn it down. The thing is, their is no spark. First thing I did was check the coil, it was finished so I ordered a new one off of Ebay for 17$, then changed the plug, still no luck. Then I proceeded in cleaning the points, still no go. Finally, I went and took apart the fly wheel, the magnetic plates (?) were quite rusted, so I lightly cleaned them using sand paper (Yes, I know this will create future rust) then cleaned it off with some brake cleaner to take off the debris. I cranked it up, it did spark! Excited, I put it back together and then went to crank it, no spark. If I keep cranking, once in a while I get spark. 1 out of 10 cranks. Did I not clean it properly? Does it need a more thorough cleaning? Looking for your help. P.S.: I got a spare GT100 motor for parts, is the flywheel the same as the GT80? If so i'll just take that one. Thanks!