The VX800 FAQ: Torque Specifications
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11. Torque Specifications

Specifications taken from pages 9-29 through 9-31 of the Service Manual.

11.1 Chassis


                                              N-m         lb-ft

    Steering stem head nut                    50 - 80     36.0 - 58.0

    Front fork upper clamp bolt               18 - 28     13.0 - 20.0

    Front fork lower clamp bolt               18 - 28     13.0 - 20.0

    Front fork tube cap bolt                  15 - 30     11.0 - 21.5

    Front axle shaft                          36 - 52     26.0 - 37.5

    Front axle pinch bolt                     18 - 28     13.0 - 20.0

    Handlebar clamp bolt                      18 - 28     13.0 - 20.0

    Handlebar holder mounting nut             20 - 30     14.5 - 21.5

    Front brake master cyl. mounting bolt     5 - 8       3.5 - 6.0

    Front brake caliper mounting bolt         30 - 48     21.5 - 34.5

    Brake hose union bolt                     15 - 20     11.0 - 14.5

    Air bleeder valve                         6 - 9       4.5 - 6.5

    Front and rear disc bolt                  18 - 28     13.0 - 20.0

    Front footrest bracket mounting bolt      27 - 43     19.5 - 31.0

    Swingarm pivot nut                        100 - 130   72.5 - 94.0

    Rear shock absorber upper/lower           22 - 35     16.0 - 25.5

                mounting nut

    Rear brake pedal boss bolt                18 - 28     13.0 - 20.0

    Rear brake caliper mounting bolt          20 - 31     14.5 - 22.5

    Rear brake caliper housing bolt           30 - 36     21.5 - 26.0

    Torque link nut (Front & Rear)            22 - 35     16.0 - 25.5

    Rear brake master cyl. mounting bolt      8 - 12      6.0 - 8.5

    Rear brake rod lock nut                   15 - 20     11.0 - 14.5

    Rear axle nut                             60 - 96     43.5 - 69.5

    Final bevel gear case joint nut           35 - 45     25.5 - 32.5

11.2 Engine


                                              N-m         lb-ft

    Cylinder head cover bolt    M6            9 - 11      6.5 - 8.0

                                M8            21 - 25     15.0 - 18.0

    Cylinder head bolt and nut  M10           35 - 40     25.5 - 29.0

                                M8            8 - 12      6.0 - 8.5

                                              9 - 11      6.5 - 8.0

    Primary drive gear bolt                   80 - 110    58.0 - 79.5

    Clutch sleeve hub nut                     50 - 70     36.0 - 50.5

    Rocker arm bolt                           25 - 30     18.0 - 21.5

    Chain guide bolt                          8 - 12      6.0 - 8.5

    Chain tensioner bolt                      8 - 12      6.0 - 8.5

    Cam chain sprocket bolt                   14 - 16     10.0 - 11.5

    Tappet adjuster lock nut                  13 - 16     9.5 - 11.5

    Crankcase bolt              M6            9 - 13      6.5 - 9.5

                                M8            20 - 24     14.5 - 17.5

    Secondary gear case bolt                  20 - 24     14.5 - 17.5

    Oil gallery plug            M6            4 - 7       3.0 - 5.0

                                M8            8 - 12      6.0 - 8.5

                                M10           12 - 18     8.5 - 13.0

                                M14           20 - 25     14.5 - 18.0

                                M16           20 - 25     14.5 - 18.0

    Oil pipe clamp bolt                       8 - 12      6.0 - 8.5

    Magneto cover hole plug                   12 - 18     8.5 - 13.0

    T.D.C. Inspection plug                    20 - 25     14.5 - 18.0

    Oil drain plug                            18 - 23     13.0 - 16.5

    Oil pump bolt                             9 - 13      6.5 - 9.5

    Oil relief valve                          25 - 30     18.0 - 21.5

    Oil filter union bolt                     12 - 18     8.5 - 13.0

    Engine mounting bolt

                                M8, L135      37 - 45     50.5 - 63.5

                                M8, L150      37 - 45     50.5 - 63.5

                                M10,L13O      70 - 88     50.5 - 63.5

                                M10,L17O      70 - 88     50.5 - 63.5

    Driveshaft bolt                           60 - 70     43.5 - 50.5

    Secondary drive bevel gear shaft nut      80 - 110    58.0 - 79.5

    Magneto rotor bolt                        140 - 160   101.5 - 115.5

    Frame mounting bolt                       40 - 60     29.0 - 43.5

    Engine mounting bracket bolt    M8        18 - 28     13.0 - 20.0

                                    M6        8 - 12      6.0 - 8.5

    Con-rod nut                               49 - 53     35.5 - 38.5

11.3 Cooling Components


                                              N-m         lb-ft

    Radiator mounting bolt      M10           50 - 65     36.0 - 47.0

    Fan switch                                9 - 14      6.5 - 10.0

    Temperature gauge                         10 - 15     7.0 - 11.0

11.4 Shaft Drive


                                              N-m         lb-ft

    Secondary drive bevel gear housing bolt   18 - 28     13.0 - 20.0

    Secondary driven bevel gear housing bolt  18 - 28     13.0 - 20.0

    Final drive bevel gear shaft nut          90 - 110    65.0 - 79.5

    Final drive bevel gear bearing stopper    90 - 120    65.0 - 87.0

    Final driven gear bearing retainer screw  8 - 10      6.0 - 7.0

    Final gear bearing case bolt              20 - 26     14.5 - 19.0

11.5 Other

For other bolts and nuts not listed above, refer to this chart. (Bolt diameter refers to shaft diameter, not head size, and "4" and "7" refer to markings on the head of the bolt.)


    Bolt Diam.       Conventional or "4" marked bolt

    (mm)             N-m              lb-ft

    4                1.0 - 2.0        0.7 - 1.5

    5                2.0 - 4.0        1.5 - 3.0

    6                4.0 - 7.0        3.0 - 5.0

    8                10.0 - 16.0      7.0 - 11.5

    10               22.0 - 35.0      16.0 - 25.5

    12               35.0 - 55.0      25.5 - 40.0

    14               50.0 - 80.0      36.0 - 58.0

    16               80.0 - 130.0     58.0 - 94.0

    18               130.0 - 190.0    94.0 - 137.5



    Bolt Diam.       "7" marked bolt

    (mm)             N-m              lb-ft

    4                1.5 - 3.0        1.0 - 2.0

    5                3.0 - 6.0        2.0 - 4.5

    6                8.0 - 12.0       6.0 - 8.5

    8                18.0 - 28.0      13.0 - 20.0

    10               40.0 - 60.0      29.0 - 43.5

    12               70.0 - 100.0     50.5 - 72.5

    14               110.0 - 160.0    79.5 - 115.5

    16               170.0 - 2        123.0 - 181.0

    18               200.0 - 2        144.5 - 202.5

And not a torque spec, but certainly useful, are the minimum serviceable brake rotor specs:


    Front 

        new should be 5.5mm +/- 0.2mm

        min allowable thickness = 5.0 mm

    Rear

        new should be 6.0mm +/- 0.2mm

        min thickness = 5.5 mm.



    Maximum runout (wobble) = 0.3mm


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