If anyone needs the complete english Workshop manual for this engine i have it and am happy to share it with you, in pdf form.
Cooling system https://ufile.io/7b31q
Engine control https://ufile.io/ltv1r
Engine Mechanical https://ufile.io/8ygvm
Exhaust https://ufile.io/fny97
Lubrication https://ufile.io/ao98k
Starting system https://ufile.io/znhl7
says it will expire in 30days let me know if you need it reuploaded.
please keep it on the dl as not sure about the legalities behind sharing it.