2006 Honda TRX680 Rincon Factory Service Manual, Page 217Get this manual
Quality of the image is intentionally reduced!
CYLINDER HEADVALVECAMSHAFT Using 32 flat cutter, remove 14 of the existing valve seat materialTOOLS: Flat cutter, 38.5 mm (IN) Flat cutter, 35 mm (EX) Cutter holder, 5.5 mm
OLD SEAT WIDTH