Surging is lack of fuel or too much air after the fuel was added.
Take the blower housing off & check that the manifold tube is tight ( don't usually come loose ) and has no cracks in it ( very common ) .
Also check that the O rings that seal the carb to the engine are in good condition .
Surging is lack of fuel or too much air after the fuel was added.
Take the blower housing off & check that the manifold tube is tight ( don't usually come loose ) and has no cracks in it ( very common ) .
Also check that the O rings that seal the carb to the engine are in good condition .