Yo Response Systems
and How To Make
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The whole idea of denaturing alcohol is to make you
ill if you drink it. If enough is ingested it can kill.
Don't use Rubbing Alcohol, contains water will rust.
A petroleum distillate. The flash point of
mineral spirits is around 100°F, 38°C.
Duratrax Powershot, NAPA Brake & Parts
various kinds available. Some not harmful to
plastics. Maybe used with Bearing in place.
Lighter fluid (petrolum base products) will
damage plastics after prolonged exposure. All of the above solvents can be used with the
Cleaning Process described for bearings. Please
be careful! Parental supervision maybe required.
Avoid using any flammable material near flames. Dispose
of used solvent properly and store in a suitable container.
Oil slows a bearing down making it more responsive.
example: Place a few ball bearings in glass, move it around.
The balls move about freely. Put some oil in and the balls
movement slows. This action allows one to tune a bearing
for return to the hand Yo response.
Use a glass jar to soak the bearing in.
The time may vary. A plastic jar will melt.
Gently swirl bearing and than let soak.
Place the soaked bearing on the end of a
pencil and spin it. Wear Saftey glasses.
Repeat soak and spin. The number of times
will vary according to the condition of the
bearing. Bearing should spin freely when done!
Place bearing on paper towel after soaking
& spinning, allow time to dry before oiling.
For applying oil in measured amounts use
a Needle Oilier. The amount of oil or no oil
(Dry), will affect sleep time and response.
Response is referring to the Yo's ability to
return to the hand. More response the Yo
will return easier, less response it would
hardly return if not at all. A dry bearing will be
less responsive, but will increase sleep time.
Noise maybe present when a bearing is dry.
This is caused by the balls of the bearing
skidding along and not rolling. One drop of
light oil is recommended, coating the inner
metal surfaces to prevent rusting. Yo On!
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YoYo bearing cross section
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