hi every one i have purchased a walbro wb3a carb from rocksolid australia , i have made my own intake manifold to suit , i have put in a pulse line to the exhaust transfer case , had to strip engine to do this , it is jetted to suit the 66cc engine though its not cheap at $185.00 , but it is good , i have a ceramic coated piston in it , i am just running it in and wow the power is tops , he bore of this carb is around 28mm , so you can get a big carb to work on a small engine as long as its jetted wright , i have had 3 engines off ebay this is the best engine i have had , from rocksolid nothing has been close , any questions videos will be on youtube this week , under juderoberts1of .
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