Hello all. I pulled a 80cc 26" mountain bike out of my apartments dumpster. i have no idea what happened to it but i tried to get it running. I got new spark plug, drained tank, new fuel mix, new fuel filter and line, checked all the wiring and nothing. so i tore down the whole kit and everything looks fine. re-assembled the whole thing and got 2 or 3 pops out of it (after riding around for 15 minutes) and nothing since. cylinder moves freely, has compression, getting fuel, spark is very weak ( light purple to white). i tested the CDI and got really weird ranges. i cant test Magneto since i have a the 2 wire model ( black wire is soldered to coil and to frame). i don't want to dump a bunch into it. any help will be great.