SAMPLEX INTRODUCES COLORTUNE - Motocross Action Magazine

  Samplex introduces that tool here in North America and it is called Colortune.   Colortune is a test sparkplug with a high temperature glass window that allows the user to actually look into the engine as it is running and observe the combustion flame in any gas burning engine.   Colortune takes advantage of the principle that different air/fuel mixtures burn different colors, orange is too rich, white is too lean and   blue is chemically correct, a 14.7 to 1 ratio. This principle
The worlds leading publication about motocross and supercross.
  Samplex introduces that tool here in North America and it is called Colortune.   Colortune is a test sparkplug with a high temperature glass window that allows the user to actually look into the engine as it is running and observe the combustion flame in any gas burning engine.   Colortune takes advantage of the principle that different air/fuel mixtures burn different colors, orange is too rich, white is too lean and   blue is chemically correct, a 14.7 to 1 ratio. This principle

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MOTOCROSS ACTION MID-WEEK REPORT - Motocross Action Magazine

The nations #1 motocross magazine. MOTOCROSS ACTION written by and for the motocross racing enthusiast, with articles of interest to both the

Motocross Action Magazine

MOTOCROSS ACTION MID-WEEK REPORT - Motocross Action Magazine

MOTOCROSS ACTION MID-WEEK REPORT - Motocross Action Magazine

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SAMPLEX INTRODUCES COLORTUNE - Motocross Action Magazine

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Motocross Action Magazine