Colortune--long reach adapter really necessary?

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  • Forden
    Forum Mentor
    Past Site Supporter
    • Jun 2021
    • 106
    • Ipswich MA

    #1

    Colortune--long reach adapter really necessary?

    What I'm really wondering is how the long reach adapter makes a difference, since it wouldn't appear to get the actual spark any closer to the combustion chamber (or is that assumption wrong?). Any comments on using a Colortune with vs. without the adapter on a bike with long reach plugs?
    thanks
    mike
    1978 GS 750 E
    1979 XS11 Standard
    1973 CB450
    1999 VFR800
  • Cipher
    Forum Sage
    • Mar 2016
    • 3129
    • Toronto Ontario

    #2
    They give no explanation man what a crap website
    I assume it is to prevent coking up the threads on the spark plug hole.
    1983 GS 550 LD
    2009 BMW K1300s

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