I HAVE A MOKI 180 IN MY DAVE PATRICK ULTY MUST SAY IT IS TOTALLY UNLIMITED.
IT IS SWINGING A 18X8 ZINGER BISSON MUFFLER, LARGE FUEL LINE TO AND FROM ENGINE AND INSIDE THE TANK.I AM RUNNING 5% RITCHS' BREW STARTS ON 2 TO 3 BACK FLIPS EVERY TIME.MUST LET IT WARM UP AND THEN SET IDLE FOR AT LEAST ONE MINUTE.NEVER DEADSTICKS UNLESS OUT OF FUEL.
DAVE SAY 9.5 TO 10.5LBS BUT THAT IS A DREAM MINE WEIGHS 12.06 LBS. FLIES GREAT LANDINGS ARE VERY PREDICTABLE WILL DO ANYTHING AT HAVE OR LESS THROTTLE.
NO WEIGHT ADDED TO PLANE EVERY THING IN THE RECOMMENDED LOCATIONS BALANCED PERFECTLY.
DAVE RECOMMENDS A YS 140 BUT WOULD HAVE TO ADD WEIGHT TO BALANCE OUT.