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  1. N

    Melted boot?

    Just built a 49cc kit (chinese cheap). Apon riding for around 10 minutes, the spark plug is ridiculously hot, burned my hand and melted the spark boot. Should I use a different plug? Currently using NGK B-4L.
  2. N

    Wont start, to much fuel?

    Hi, couldnt figure out this issue so this is my first experience with this fourm. Just finished building a 49cc chinese bike kit, and wont start. Pops a couple times here and there but nothing lasting. After riding for 50ft spark plug is totally blackened. Figured it was running to rich, even...