r/Throwers • u/stone_crazy • 1h ago
MAINTENANCE Resurrecting some yoyos
I have a couple of yoyos I bought in 2010, and some accessories. The yoyos are a Duncan Pulse and a Duncan Freehand Zero. They've say around getting light occasional use. I decided it was time to overhaul the Pulse and figure out why one side was not lighting up. When I got it apart I saw the friction stickers were real worn. After I fixed a terminal corrosion issue and reassembled the halves with fresh batteries, I decided to replace the pads and string and lube the bearing.
The "some accessories" include Duncan friction stickers, silicone stickers, and a shitload of strings. I've got 100 50/50 cotton/poly #6 ones for example. I decided to lube the bearing with some 3 in 1 PTFE dry lube. I put it back together and messed with it a bit, and then went to read about lubricating yo-yo bearings.
To cut to the chase, I've been conversing with Google AI and it suggests my optimal course is
Take the Pulse back apart
Remove the bearing. Remove the metal guards from the sides of the bearing.
Clean the bearing by immersing it in light mineral spirit, soaking for 10 min, then swishing it around a bit. Remove from solvent.
Wipe bearing with paper towel and put on end of pencil. Spin bearing until dry.
Apply tiny specks of diving-gear-grade silicone grease to the bearings.
Discard the metal shields and their retaining clips. Reassemble the yoyo with bearings exposed.
But first, remove one silicone sticker and replace it with a friction sticker.
Does all this pass a sanity check? I know, there are purpose-formulated thick yo-yo lubes I should be using, but the AI thinks my moderately exotic silicone is a reasonable stand-in.
If all that passes the smell test, there's a suggestion to take apart the Freehand Zero, expose and clean its bearing, lubricate with light sewing machine oil (yes again I know, there's a product for that, but I already own a collection of lubricants), and rebuilding with silicone stickers in place of the worn-out friction stickers it has from the factory. I'd use another 50/50 #6 string on that.
Do these seem like reasonable maintenance/upgrade steps?