Specifications

2
TVS TVXL HSK HXL
TC200 TC300
AV520/600 TVS600 AH/HSK600 AH520
TCH200/ 300
Note: Torque specifications listed should not be confused with the torque value observed on
engines which have been run.
The Torque specifications take relaxation into account so sufficient clamping force exists
after an engine has reached operating temperature.
Torques listed are intended to cover highly critical areas. More extensive torques are found
in the respective repair manual.
Torque Specifications
TWO-CYCLE ENGINE SERIES
840 - 850 TWO-CYCLE ENGINE SERIES
Location Inch lbs. Torque Nm Engine Designation
Crankcase to Cylinder 120-204 13.5-23 • • • •
Flywheel Nut 360-420 41-47.5 • • • •
Adapter Plate to Cylinder 160-220 18-25 • •
TC TWO-CYCLE ENGINE SERIES
Location Inch lbs. Torque Nm Engine Designation
Cylinder to Crankcase 80-95 9-11 • • •
Crankcase Cover to Crankcase 70-100 8-11 • • •
Flywheel Nut 190-250 21.5-28.5 • • •
TWO-CYCLE ENGINE SERIES (AV520/600, TVS600, AH520, AH/HSK600)
Location Inch lbs. Torque Nm Engine Designation
Connecting Rod 40-50 4.5-5.5 • • • •
Housing Base to Cylinder 80-120 9-13.5 • • • •
Cylinder Head to Cylinder 100-140 11-16 • • • •
Flywheel Nut AV Industrial (Point Ignition) 216-300 24.5-34 • •
(670 Series AV 520 and All AV 600)
Flywheel Nut (C.D. Ignition) 264-324 30-36.5 • • • •