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Old 04-15-2021, 11:47 AM
dobrodan dobrodan is offline
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Join Date: Sep 2004
Location: Chapel Hill, NC
Posts: 184
Have you used a Unisyn to check the draw on both carbs? You can't get these carbs right without proper synching. The front carb cover is different from the rear, so swapping them front to back would mean taking them somewhat apart. It sounds like there is no fuel going into the front carb - no accelerator pump squirts and no firing in the front 3 cylinders. It is common on these carbs for the needle to stick, or for the fuel not to make it there because of a clogged path. Remove the cover of the front carb after you've had it running to see if there is adequate fuel in the bowl. It's a five minute job and will tell you a lot. Check the obvious things first before going for the exotic.
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