the engine also ticks.. sounds like valves.. some ppl say its normal cause of the big valves but it scares me.
Probably a good idea to send them to Wiredgeorge for rebuild. You will be happy with the result.when i had it apart the air screw in #4 carb was whrong and fabricated to work. and one of the floats was different then the others... the main jet was a 140. dont know what the other is... dont know what to turn the air screws out to.