I also have a 79 yz250.
Yamaha wanted $75 for each thrust bearing!!! I said screw that.
This last winter I replaced my swing arm bearings and lower chain roller with the allballs kit.
I drilled and installed grease nipples in the swingarm so I wont have to touch it again in along time.
Make sure to get the swing arm protector (so the chain doesn't chew the metal casing and the rubber seal)
My bike does not have an upper chain roller and I cant seem to picture where it would be. Any chance you can get a close up picture for me so I can see it???
If you get in a jam and cant find parts on ebay or through yamaha then just message me (I have collected some spare parts over the years)
Yamaha wanted $75 for each thrust bearing!!! I said screw that.
This last winter I replaced my swing arm bearings and lower chain roller with the allballs kit.
I drilled and installed grease nipples in the swingarm so I wont have to touch it again in along time.
Make sure to get the swing arm protector (so the chain doesn't chew the metal casing and the rubber seal)
My bike does not have an upper chain roller and I cant seem to picture where it would be. Any chance you can get a close up picture for me so I can see it???
If you get in a jam and cant find parts on ebay or through yamaha then just message me (I have collected some spare parts over the years)