Yamaha F90D - Page 26

6D81G11
2-12
1
2
3
4
5
6
7
8
9
Cylinder head bolt
1st
M8
14 1.4 10.3
2nd 28 2.8 20.7
1st
M10
15 1.5 11.1
2nd 30 3.0 22.1
3rd 90°
Spark plug — 25 2.5 18.4
Cylinder block plug M14 23 2.3 17.0
Oil filter joint — 49 4.9 36.1
Oil filter — 18 1.8 13.3
Exhaust cover bolt
1st
M6
60.64.4
2nd 12 1.2 8.9
Anode screw M4 2 0.2 1.5
Exhaust cover plug M18 55 5.5 40.6
Crankcase bolt
1st
M8
14 1.4 10.3
2nd 28 2.8 20.7
1st
M10
19 1.9 14.0
2nd 60°
Connecting rod cap bolt
1st
M8
18 1.8 13.3
2nd 80°
Lower unit
Gear oil drain screw — 90.96.6
Gear oil check screw — 90.96.6
Lower case mounting bolt (L-transom model) M10 39 3.9 28.8
Lower case mounting nut (X-transom model) — 39 3.9 28.8
Propeller nut M16 34 3.4 25.1
Ring nut — 103 10.3 76.0
Cooling water inlet cover screw — 50.53.7
Pinion nut M16 93 9.3 68.6
Bracket unit
Shift rod detent bolt — 18 1.8 13.3
Shift position switch screw M4 1 0.1 0.7
Flushing hose adapter screw M6 2 0.2 1.5
Oil pump bolt M6 10 1.0 7.4
Upper mounting nut — 51 5.1 37.6
Lower mounting nut — 51 5.1 37.6
Grease nipple — 30.32.2
Oil pump cover screw M6 4 0.4 3.0
Oil seal housing screw M6 4 0.4 3.0
Upper mount bolt M8 28 2.8 20.7
Muffler assembly bolt M8 20 2.0 14.8
Engine oil drain bolt M14 27 2.7 20.0
Oil strainer bolt M6 10 1.0 7.4
Oil pan bolt M6 11 1.1 8.1
Exhaust manifold bolt M6 11 1.1 8.1
Part to be tightened Thread size
Tightening torques
N·mkgf·mft·lb
Tightening torques