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  1. BonScott46

    Autotune / M-tronic sparkplug color

    I don't own either of these types of saws but I was curious as to how the plugs look on these saws since they are supposed to be running on the verge of too lean. Pics would be great if anybody has some.
    • BonScott46
    • Thread
    • autotune husqvarna lean m-tronic plug sparkplug stihl
    • Replies: 6
    • Forum: Chainsaw
  2. djlozar

    Want to Sell Stihl MS 661 R C-M

    Everyone knows what this saw is so not alot of explnation. Recent tune-up by Stihl master mechanic included spark plug, fuel filter, HD air filter and computer re-calibration. Computer readout had 20 hrs of run time, total! 25" bar with near new Oregon full skip chain. $900 plus shipping will...
    • djlozar
    • Thread
    • 661 m-tronic new chain recent tune-up stihl
    • Replies: 4
    • Forum: Chainsaws
  3. Michaelmj11

    M-tronic's & ported/modded, muffler/carb mods, etc.

    How does M-tronic's affect porting/modding, AND How does porting/modding affect M-tronic's?? #1.) If the muffler is the only thing modded? #2.) If the only thing done was removing catheters? #3.) If the carb is the only thing modded? #4.) If the whole sha-Bang is ported?
    • Michaelmj11
    • Thread
    • m-tronic m-tronic's mod modded modding muffler port ported porting tronic
    • Replies: 14
    • Forum: Chainsaw
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