Yamaha Torque Specs

TR1 Engine

Cylinder head bolt

1st: 25 N-m (2.5 kgf-m, 18.4 lb-ft)

2nd: 25 N-m (2.5 kgf-m, 18.4 lb-ft)

3rd: 180°

Camshaft cap bolt –

10 N-m.     (1 .0 kgf-m, 7.4 lb-ft)

Connecting Rod-

1st: 20 N-m (2.0 kgf-m, 14.8 lb-ft) 2nd: 120°

Inner crankcase bolts

1st: 15 N-m (1 .5 kgf-m, 11 .1 lb-ft) 2nd: 15 N-m (1.5 kgf-m, 11.1 lb-ft).  3rd: 70°

Crankcase outer bolts

Crankcase bolt (M6 x 52 mm) “1” 12 N-m (1 .2 kgf-m, 8.9 lb-ft)

Crankcase bolt (M6 x 45 mm) “2” 12 N-m (1 .2 kgf-m, 8.9 lb-ft)

Crankcase bolt (M6 x 85 mm) “3” 12 N-m (1 .2 kgf-m, 8.9 lb-ft)

Crankcase bolt (M6 x 55 mm) “4” 12 N-m (1 .2 kgf-m, 8.9 lb-ft)

Crankcase bolt (M8 x 70 mm) “5” 24 N-m (2.4 kgf-m, 17.7 lb-ft)

Balancer weight bolt   35 N-m (3.5 kgf-m, 25.8 lb-ft)