Parts manual: YANMAR YM1610DGR PARTS MANUAL NPC-1114
I believe the closest repair manual would be the 226 manual. I do not believe it is free on line at this time.
There is a service manual for the 3T75 engine, it's in English too.
The manual is for the Yanmar gensets, yet the engine info will be spot on for nearly everything involved for the tractor engine. Look for the,
YANMAR T-LE ENGINE SERVICE MANUAL 2T72HLE 2T75HLE 2T90LE 3T72HLE 3T75HLE 3T80LE 3T90LE.pdf
*Yanmar Tractor Owners Group.* **US models, Gray market models, Cub Cadet models, RK models, even our green siblings known as Deere's. ** *A valuable source for owners of Yanmar tractors.* * * *If you would like to join our group, then click on the +Join This Group button below left. *NOTE: A...
1610 16Hp. 1.0L 3Cyl. 169 16Hp. 0.9L 3Cyl. Same Rod and Bearings. Pistons size? Both powershift. I have a 169 Manuel But it's to big for TBN. PM me on here a E-mail address your welcome to it. I've sent it before doing it that way. No doubt useful to you!