Adjusting Front/Rear Power Ratio; Front Camber Adjustment; Rear Differential - Kyosho Optima Pro 4WD Manual

[Adjusting Front/Rear Power Ratio]
By changing the front and rear sprockets,
you can change the power ratio.
A
19T
/
/
Screw
Front
Differential
19T
I
I
B
18T ·· 18T
I /
~
18T
)
c
Place the car on a flat surface with the
chassis raised as high as possible and
adjust the length of the front and rear
upper rods in a way so that the tires stand
at a right angle to the ground.
Upper Rod Negative
..c;=
Camber
Negative camber results when you make the
upper rods shorter .
. With negative comber at front, you can get
better steering. In case of rear, you can
get higher grip of rear tire.
Rear Differential
A. Nomal: Front and rear furn at same rate.
B. Rear wheels have slightly more power.
C. Front wheels have slightly more power.
[Keeping the Chain Clean]
Be careful not to let sand and dust in through
the chain cover and chain guide. Seal the
openings around the chain cover and guide with
cellophane tape or silicone sealer. Remove
the gearbox hatch cover and hold the car
upside down to remove any dirt.
[Replacing the Chain]
To replace the chain, remove the chain cover
(B); and holding the model vertically with
the front upward, feed the chain from the
front sprocket to the rear. It may require
a few tries to get it right.
Upper rods
Lengthened
Positive
Camber
Positive camber results when you make the
upper rods longer
With positive comber at front, you can get
tendency of under stair. In case of rear,
you can get tendency of over stair.
*
Too much positive camber will be cause of
· coming off swing shaft.
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