'71 swingarm...how do I grease?

[angus67]

How do I grease this swingarm? my grease gun doesnt fit this fitting. what is it?

 

[5twins]

It's an old style nipple. Replace it with a new style, available in metric and assortment packs at the auto parts store. I think they take the M6 size.

 

[angus67]

ok thanks