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D15SII carburetor adjustment, using D17 venturi?
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Dean (West MI) View Drop Down
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Joined: 12 Sep 2009
Location: West Michigan
Points: 1282 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dean (West MI) Quote  Post ReplyReply Direct Link To This Post Topic: D15SII carburetor adjustment, using D17 venturi?
    Posted: 22 Feb 2023 at 9:30pm
What are the baseline settings for a MS TSX 869 carburetor on a D15 SII? 1.5 idle and 2 for main jet?

Also, has anyone run one with the larger D17 venturi? Any difference in performance or basline carburetor settings?

Thanks!
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21725 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2023 at 5:25am
D-17 Marvel Schebler carb has a 7/8" venturi. The last D-15 S2 I had apart had the same 7/8" venturi.  Main jet adjustment...wide open throttle with a warm engine. Turn in L-screw until engine just begins to falter. Back out 1 full turn. If it stumbles on acceleration, give it another 1/4 turn at a time until it doesn't stumble any more.
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