jetting

  1. JR3434KTM

    2 Stroke KTM 250 MXC 1983 Jetting Issues

    Earlier this month I replaced the air filter on my 1983 KTM 250 MXC. It ran great before i replaced the air filter, after installing the new, oiled air filter, the bike had trouble starting, idling, and started creating black sludge coming out of the muffler. Any suggestions?
    • JR3434KTM
    • Thread
    • 2 stroke jetting ktm
    • Replies: 5
    • Forum: KTM
  2. nbolls

    250 1999 YZ250 Jetting

    So I want to put an FMF Turbine Core 2 (Item# 020361) and FMF Fatty 2-stroke pipe (Item# 024053) on my 1999 YZ250. Previously it had a Pro Circuit Nature Friendly S.A. Silencer (Item# SY99250-SA) and stock header pipes. I am 366 feet above sea level currently. I believe the jetting is stock...
    • nbolls
    • Thread
    • 2smoke 2stroke dirtbike help howto jetting maintenance motocross yamaha yz250
    • Replies: 5
    • Forum: Yamaha
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