McCulloch BDC 2 or 4

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cedarheaven

ArboristSite Member
Joined
Nov 14, 2005
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Is there anyone out there that knows the ins and outs of the old McCulloch BDC 2 or 4 that was fitted for the MC 91, MC 91A or the 101. The BDC 4 was for the 91C and the 101C. I have it running on an old 100 McCulloch (Kart) that will run full out for about 30 seconds and then starve out. I know these are temperamental carburetors yet when running these can be the best match with the early 90 and 101 series kart engines. I have changed the inflow lever setting many times to try to adjust the fuel flow with some improvement but still have it starved out after reaching the power band. Anyone with some info would be appreciated. Thanks
 

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