Three things:
1. Never buy Champion spark plugs for anything (run NGK)
2. Those Champion plugs you bought on e-bay are 99% likely to be fake anyway (so even worse than Champion plugs). Buy your plugs at the car parts store, they really aren't that expensive
3. Check out this thread regarding the CDI: http://www.3wheelerworld.com/showthr...ent-MythBusted . Is this the CDI you replaced it with, or did you use a used original?
- Frank
1984 200ES Big Red
1985 350X (x2)
1986 350X
1986 250SX
1984 Auto-X
1984 ATC70
1985 ATC70