ronmar - forgot - on the issue of flywheel, honda also uses this same engine in a RV generator they sell, the EV4010 & the EV6010 - the 2nd is a 6K gen
flywheel is the same one they use when installed in my tractor - i keep meaning to weigh it as it's heavy and keep forgetting - but it's in the 12 lb range
flywheel is the same one they use when installed in my tractor - i keep meaning to weigh it as it's heavy and keep forgetting - but it's in the 12 lb range