Mar 232024
With the help of an old Aermacchi friend I found the reason why the bike spit oil out of the exhaust. The fitting (oil inlet) on the cylinder was defective and over time 2- Stroke oil flooded the crankcase simply by beeing parked in the garage. The fitting has an integrated back pressure valve. I replaced the oil-line fitting and removed the excessive oil from the crankcase and from the exhaust and since then the bike runs good again after spreading the remaining oil everywhere in my driveway out of the exhaust.
