Re: Carb Problem

Posted by Owen_Dyneto On 2012/5/18 15:30:35

Bending the tab is the correct method for adjusting the float or fuel level which is VERY important. In some carburetors you adjust the actual liquid fuel level in the bowl, in others you adjust the float "drop" - see the specific instructions for your carburetor for which method applies.

Back to the needle and seat issue I just received some information from whom I consider to be the premier carburetor kit supplier and rebuilder. They haven't supplied Viton-tipped needles in many years and today their kits and rebuilds (except for updrafts) use a float control valve which utilizes a brass seat, aluminum needle, and a telfon closure disc. Compatible with today's fuel and pretty much a "forever" arrangement.

The worst with today's fuels were the butyl rubber-tipped needles. With 10% EtOH gasoline they only last for minutes or an hour at best and they are probably still to be found in obsolete and old stock carburetor kits.