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  1. #1
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    Carb identity !!!

    I have a 1993 Merc 245 WMH carb hi po motor , and im trying to identify it the number on the top carb is 3311-8216870
    im having trouble finding any info on them. there are so many carb versions i cant seem to find any info on the ones i have.
    Thanks
    Last edited by crazy cajun 2; 02-21-2008 at 01:52 PM.

  2. #2
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    I don't think any info goes back to 1933! Did they make outboards then?

  3. #3
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    i have the same mota...i think you meant 1993,,,mine has the wmh pumper carbs on it. merc made several versions of this carb, some with and without the pumper. mine is jetted with 72's i think. what are you askin exactly?
    Matt
    aka boilerdawg

    Boatless for the first time in 20 years.

  4. #4
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    yes it is a 93, my carbs are the non pumpers, and yes came stock with 72's, i run 68's for drag racing and trying to get more mid range punch, wondering about the progression jets, they have 50's in them now, EGT's on top end run at 1200 deg. looking to find a little more mid. trying to find any info i can on tuning these carbs, idle adjustments are set 1 1/4 turns out launches good trying to figure out how to get more mid. thanks

    anyone have diagrams on this particular carb ??
    and the logistics of tuning for it??

  5. #5
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    Tuning a WHM series carb can be a real pain in the a$$ - Do yourself a favor- if your looking to get every last thing out of your motor for the drags, find a nice set of WH carbs (prefer wh22 or wh20). JMHO


    '95 STV "The Blue Goose"


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