Aisan D40 Carburetor, This one features a custom replacement sight glass with the Aisan logo script etched into the glass. I need to find a rebuild kit for a D40 single barrel Asian carburetor. With over 20 years of experience in carburetor technology, Aisan continues to lead the industry with innovative and reliable products. I paid to have a batch of these made as an affordable alternative to service my Order your Aisan Carburetor D40 today and start enjoying a smoother, more powerful ride. May 19, 2009 · I'd like to rebuild my single barrel Aisan Carb. Precision Carburetors Uremco Aisan Series Remanufactured Carburetors are crucial engine components, regulating air-fuel mixture for optimal combustion. . How-to's & troubleshooting ideas. Upgrade to a reliable carburetor for improved engine responsiveness and overall driving experience. I'm having trouble finding the right kit for this carburetor because every online catalog i've looked at doesn't specify if its single or double barrel. g44, mq1l, 8n7q, qhat, newgwv, spqc4, zpvp9y, ekq, 24, kphg,