Hi Razor,
Well I just weighed my Webra 50 to compare to the spec on the Webra site and to see if it includes - or not - the muffler. Hmm, my motor weighs more than specified [sm=confused.gif] so I don't know what to tell you. For sure that weight Webra give is without muffler and probably without the carb aswell!

FWIW my 50 weighs 12&3/8oz without and 16&1/8oz with muffler.

HTH,
Steve