Another photo of a swingarm grease nipple. It doesn't look as accessible as yours Les!
To the very best of my knowledge no TTRs were fitted with a grease nipple on the headstock from the factory. Any found will be retrofitted by the owner. A good idea to keep the head races/bearings in good shape although it takes a lot of grease to fill up the space! It is surprising what comes out when you give a couple of pumps after a power wash
hi brian is the headstock blocked off to the frame so that your not filling the frame
It must be John - but I haven't got a frame here to double check.
I have seen enough done to assume it is blocked off.
One thing to check is that the rubber plug is fitted to the centre shaft of the yokes under the bars. Made a right mess with my brothers TTR until we realised why it was taking so much grease
many thanks steve time for a grease nipple ill look for robber cant understand how grease can get to inside of hollow tube where the nut tightens on to top yoke