Don't use the torque figure you find in a 650 manual.From '69 the torque figure should be 22 ft-lb for UNF bolts.This change was not listed in 650 manuals,they still gave 28 ft-lb for the previous bolts.22 ft-lb is given in the T140 manual.
Its more accurate to measure bolt-stretch (0.004"-0.005") than rely on a torque wrench.
The bolts should be lubricated and then tightened and released 4 or 5 times,before final torque up.
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