I'm 99% sure the torque setting is 120NM. Its always alittle off though due to the fact your never lucky enough to torque the nut up and have the pin holes line up so they always have to be under torqued or over torqued just to get the nut in the right postion.

There is however a HRC mod to over come this trouble but thats another story.
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If I have to take the carbs off once more...