Piston arrow

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    • June 20, 2015 at 11:54 am #50201
      Tom Petalino
      Participant

      Should the arrow on a Burris piston always face toward the exhaust or intake? Yamaha kt 100 .

    • June 21, 2015 at 7:53 am #50256
      Greg Wright
      Participant

      Exhaust

      Greg Wright
      Rapid Racing Inc.
      Vintage B-Stock Pilot
      "When in doubt Gas it, It won't help but it ends the suspense."

    • June 23, 2015 at 11:41 am #50361
      Walt Gifford
      Participant

      LOL, you poppin’ in one of those 54mm jobs? The anti rotation pin on the ring goes to the carb side. Arrow points to exhaust.

      Gif

      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

    • June 23, 2015 at 5:09 pm #50373
      Tom Petalino
      Participant

      Thanks for the response guys. I bought a cheap ebay motor for practice. Honed the cylinder and put a piston ring and bearing.  Cylinder looked good, no scratches or grooves.  Set the ring gap but did not check squish. I used the same spacers over again. I have no idea about bottom end hours on it.  I’ll see how long it runs next week.

    • July 7, 2015 at 9:24 am #51109
      Walt Gifford
      Participant

      I’ve bought allot of old KT100’s from various places and the main thing is carry a spare ignition coil with you.

      Gif

      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

    • July 7, 2015 at 5:28 pm #51146
      Tom Petalino
      Participant

      Thanks Walt, that is one spare part I don’t not have in the trailer.  Ordering one tonight. Running senior pipe and lo 206 this year. Hard to keep all the spares stocked.

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