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770 SBT Engine specs use stock carb settings?

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  • 770 SBT Engine specs use stock carb settings?

    Are TS 770 SBT engines bored 1.0mm over or standard? If bored over, what is the expected hp over stock? Top speed gain?

    And lastly, what carb settings should be used if bored over? I saw that for stock low speed, 1-1/8 t.o. was on Tech Articles, but Arctic Cat recommended 1 turn. H.S. setting was 5/8 t.o., but I thought 770s had fixed hs.

    Can you help clear things up?

  • #2
    Re: 770 SBT Engine specs use stock carb settings?

    They are 1mm oversize, and you will not feel any power increase from such a small overbore.

    Carb settings are always +/- 1/4 turn. Some units have no HS adjustment, some do.
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