Re: 1966 3 hp lightwin Carb problem

[frankr]

quote mercuryman:

I have a 1966 lightwin 3 hp with the fixed jet , main jet. The motor is hard to start then will die after running a few seconds. Acts like running lean. Tried every thing no help, then I switched carb bowl for one with adjustable main jet. Now it runs perfect. Why is this happening has gas changed over the years. Also over the years I have had two 66 lightwins and both had slung a rod, have they been too lean all the time. Has anyone drilled out the high speed jet ?

Drilling it out is probably the best way to ruin the orifice.