84 1150 front forks

[Guest]

Quick question for those in the know, I'd like to change out the fork oil as I have no idea how old or what weight was used last.
Can I simply remove the drain screw and "pump" the front up and down a few times and refill as per the specs in the service manual, or do the forks need to be removed and turned upside down to fully drain them?
I picked up some 15wt lucas synthetic fork oil over the weekend, its one of those things I figured I'd do while there's still snow and ice on the road.

BTW, went for a good burn dec 28 and 29, then we got a major snowstorm here. Hence, I figured I better stay busy in the garage so I don't get handed a honey-do list. First yr in 4 we haven't ridden new yrs day.

[rapidray]

To be honest, the BEST way to do it is with a complete disassembly, cleaning of all parts & reassembly with new fork seals. This way you know what is inside & that the fork seals won't go 2 weeks after you change the oil. That's how I do tjem. Progressive springs will help too. Ray.

[derwood]

yes, those screws allow you to change oil with out removing the forks. they have little soft washers that act as seals, don't lose them.

[bluewool]

If you don't do the complete disassembly you can rinse the old fork oil(and associated weird ****) out with mineral spirits or methyl hydrate just make sure it is all out before you add your new oil.