Originally Posted by
Old Fart
Dave's talking about the carb barrel spring.They are totally necessary if you don't want to chase the idle around all day,all mine have them.
OF, I share this opinion of yours. I actually wonder why on earth the Saito FA-125a is the only engine in range without the carb spring! But like said earlier it seems the engines released after FA-125a are going to have the carb barrel spring again. (i.e. FA-115)