Question about 1991 Yamaha TDM 850
Hi,i am guessing you have a gs850g,if so the diff housing has two holes,one for draining,and one for filling,the lower of the two is for draining ,the upper of the two is for filling,to drain the diff oil simply undo the bottom of the two plugs and let the oil drain out,to refill simply replace the drain plug,undo the upper of the two plugs(this should be a relatively large one)refill with a good quality (normally 80-90w)gear oil,(the diff should hold about 400-700mls depending on model)simply fill the diff housing with oil untill it starts to dribble out of the filler hole(this is the correct lubricant level),then replace the plug,thats it ,very simple,i normally do the one in my 650 katana about every 30000km,to my knowledge there are no other lubrication points in the driveline,except the axle spline shaft which slides into the universal joint at the back of the gearbox,but this is normally fairly maintanence free as it is sealed from the environment by a fairly substantial rubber boot and shouldnt need looking at unless the rubber boot has been split or has perished,,hope this helps
Posted on Jul 19, 2009
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Posted on Jan 02, 2017
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