Fantic XEF 250 - Component Tightening Torque Specifications

13 Motore1. General information
USE AND MAINTENANCE MANUAL CHAPTER 1
GENERAL INFORMATIONXEF 250 - Rev01 / 2020
18
1.9 TIGHTENING TORQUES
Engine tightening torques
“◊” = marked portion shall be checked for torque tightening after break-in or before each race.
Item
Thread size
Quantity Tightening torque Remarks
Camshaft cap bolt M6 8 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Spark plug M10 1 13 Nm (1.3 kgf•m, 9.6 lb•ft)
Cylinder head stud bolt (exhaust pipe) M6 2 7 Nm (0.7 kgf•m, 5.2 lb•ft)
Oil passage plug (cylinder head) M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Cylinder head bolt M9 4
See tip
at page 20.
Cylinder head nut M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Cylinder head cover bolt M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Cylinder bolt M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Oil pressure check bolt M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Balancer weight plate screw M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Balancer weight gear nut M14 1 50 Nm (5.0 kgf•m, 37 lb•ft)
Balancer nut M10 1 38 Nm (3.8 kgf•m, 28 lb•ft)
Timing chain guide stopper plate (exhaust
side)
M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Timing chain tensioner cap bolt M6 1 6 Nm (0.6 kgf•m, 4.4 lb•ft)
Timing chain tensioner bolt M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Coolant drain bolt M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Radiator hose clamp screw M6 8 1.5 Nm (0.15 kgf•m, 1.1 lb•ft)
Radiator bolt M6 4 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Radiator pipe joint bolt M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Radiator fan bolt M6 3 8 Nm (0.8 kgf•m, 5.9 lb•ft)
Water pump housing cover bolt M6 4 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Water pump impeller M8 1 14 Nm (1.4 kgf•m, 10 lb•ft)
Oil pump bolt M5 2 5 Nm (0.5 kgf•m, 3.7 lb•ft)
Oil pump cover screw M4 1 2.0 Nm (0.20 kgf•m, 1.5 lb•ft)
Oil strainer bolt M6 1 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Throttle cable cover bolt M5 1 3.5 Nm (0.35 kgf•m, 2.6 lb•ft)
Throttle body joint bolt M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Throttle body joint clamp screw M5 1 3.0 Nm (0.30 kgf•m, 2.2 lb•ft)
Air filter case joint clamp screw M5 1 3.0 Nm (0.30 kgf•m, 2.2 lb•ft)
Air filter case bolt M6 3 7 Nm (0.7 kgf•m, 5.2 lb•ft)
Clutch cable locknut (clutch cable adjuster) M6 1 4.3 Nm (0.43 kgf•m, 3.2 lb•ft)
Clutch cable locknut (engine side) M8 1 7 Nm (0.7 kgf•m, 5.2 lb•ft)
Exhaust pipe nut M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Exhaust pipe protector screw M6 2 10 Nm (1.0 kgf•m, 7.4 lb•ft)
Exhaust pipe bracket bolt M8 1 20 Nm (2.0 kgf•m, 15 lb•ft)
Silencer bolt (front) M8 1 30 Nm (3.0 kgf•m, 22 lb•ft)
Silencer bolt (rear) M8 1 30 Nm (3.0 kgf•m, 22 lb•ft)
Exhaust pipe clamp bolt M8 2 12 Nm (1.2 kgf•m, 8.9 lb•ft)
Spark arrester bolt M5 4 9 Nm (0.9 kgf•m, 6.6 lb•ft)
Silencer cap screw M5 6 5 Nm (0.5 kgf•m, 3.7 lb•ft)