good find I think that jd used zenoah motors on alot of there blowers, I have a 40 cc blower I think it is a z motor but they are sometimes quiet about there motors but they have '' real steel" rods 2 ring piston bearings rollers everywhere!!!!! found an add on strato engines in short it uses 2 barrel carb, 1 barrel for fuel and air mix the other for normal air pressure to force the unburned waste back through carb in through intake number 1 ect EPA !!!!!! I think it will run real lean