THE FINEST RADIO CONTROL MODELS
R
INSTRUCTION MANUAL
1 : 10 SCALE RADIO CONTROLLED .15 ENGINE POWERED 4WD RACING BUGGY
No. 31091
REQUIRED FOR OPERATION
RADIO PREPARATION
BEFORE YOU BEGIN
ASSEMBLY
OPERATING YOUR MODEL SAFELY
EXPLODED VIEW
SPARE PARTS & OPTIONAL PARTS
2 3
3
4 5
6 22
23
24 25
26 27
INDEX
UNDER SAFETY PRECAUTIONS
This radio control model is not a toy!
First-time builders should seek the advice of experienced modellers before
beginning assembly and if they do not fully understand any part of the
construction.
Assemble this kit only in places out of childrenÕs reach!
Take enough safety precautions prior to operating this model. You are responsible
for this modelÕs assembly and safe operation!
Always keep this instruction manual ready at hand for quick reference, even after
completing the assembly.
*SPECIFICATIONS ARE SUBJECT TO BE CHANGED WITHOUT NOTICE.
© 2002 KYOSHO CORPORATION
Before beginning assembly, please read these instructions thoroughly.
This kit is half assembled.
Please start assembling from page 10 .7 9 1 8 9
1
Minimum 2 channel radio with 2 servos, and battery box.
Stick-type
2ch radio.
Wheel-type
2ch radio.
Battery Box
If already included with the
radio, no battery box needs
to be pur-chased separately.
AA-size Batteries
AAAA
AAAA AAAA
Servo Receiver
Required for engine starting:
REQUIRED FOR OPERATION (1)
Suitable servos & receiver
Engines for R/C models require glow fuel.
Be careful not to purchase gasoline or
kerosene by mistake; both cannot be
used! Also, be very careful when han--
dling glow fuel which is hi-ghly inflamma--
ble and high-explosive!
Besides glow fuel, engines also require
engine starting equipment. This compri-
ses a glow plug heater and a plug
wrench for remov-ing and installing the
glow plug.
2
PAINT BRUSH
3
Paint and Brush
POLYCA COLOR
No.2230
Mi
cr
on
Li
ne
T
a
pe
KYOSHO
MICRON LINE TAPE
No.1841
1842
1843
1859
1860
(1mm x 5m)
(1.5mm x 5m)
(2.5mm x 5m)
(0.4mm x 8m)
(0.7mm x 8m)
Super-flexible tape for masking and detail
designing jobs.
D-
D FLEX COLOR DECAL
No.96701 96703
Self-adhesive super-flexible sheets that
bond to polycarbonate even when
applied to curved surfaces.
MASKING SHEET
No.1947
For safe masking jobs, use this plastic masking
sheet featuring one self-adhesive edge.
KYOSHO SPRAY COLOR
No.76301 76711
For painting the body, use Kyosho
paints for models!
CAUTION: Only use a surface radio with 2 channels and 2 servos!
CAUTION: Before
using spray colors,
always read their
explanations!
S
P
R
A
Y
C
O
L
O
R
R
K
Y
O
S
H
O
2
Spark Booster AC Adapter
Glow Fuel Plug Wrench
No.73201
WARNING: Gasoline
or kerosene cannot
be used.
Because there are stick-type and
wheel-type transmitters, use
which ever fits your convenience
best.
Use a transmitter with reverse
function.
For more information on the radio,
refer to its instruction manual.
4
Tools required
TOOLS INCLUDED
Sharp Hobby Knife
Hex Wrench
Phillips Screwdriver (L.M.S)
Needle Nose Pliers
Awl
Wire Cutters
Cross Wrench
RADIO PREPARATION
Set up the radio control system as indicated below.
GREASE
Grease
Screw Cement
1.5mm
2mm
SCREW
CEMENT
1
2
3
4
5
6
7
8
9
10
11
12
Insert AA-size dry batteries. (Battery Box)
1
Extend the antenna. (Transmitter)
2
3
4
Extend the antenna. (Receiver)
5
Center the trims.
6
Switch on the transmitter.
7
Switch on the receiver.
8
Make sure the servos move according to
your transmitter inputs.
9
Switch off the receiver.
10
Switch off the transmitter.
Retract the antenna. (Transmitter)
11
12
Insert AA-size dry batteries. (Transmitter)
Connect the battery box.
START
FINISH
5
4
3
8
ON
OFF
10
Receiver
Switch
Battery Box
Servo
CAUTION: Handle tools carefully!
No need to pre-drill!
Drills neat 1mm to 15mm holes directly!
ROUND CUTTER & SANDER
No.1829
For trimming bodies. Cutting along curved
lines never was so easy!
3
REQUIRED FOR OPERATION (2)
Switch the reverse switch for both the steering
and the throttle.
LOCTITE Medium Strength
No.94402
To prevent the screws
from becoming loose.
1
1
2
12
2
12
Transmitter
6
ON
OFF
ON
OFF
11
7
11
7
9
9
6
KNIFE EDGE REAMER
No.695101
KYOSHO Special Glue
No.96154
Instant Glue
Special Glue
1
Read through the manual before you begin, so you will have an overall idea of what to do.
BEFORE YOU BEGIN (1)
R
L
Check all parts. If you find any defective or missing parts, contact your local dealer or our Kyosho Distributor.
2
How to read the instruction manual:
3
No.4, No.5, No.6
5 x 10mm
Metal Bushing
4
King Pin
4
5.8mm
Pillow Ball (Black)
2
3
6
Key Number, Part Name, True-to-scale
Diagram, Quantity Used
This instruction manual uses seve-
ral symbols. Please note them
during the entire assembly.
All parts except screws are identified by
key numbers. For purchasing spare parts,
find the key no. of the part needed in the
spare part list and refer to the left column
to look up the corresponding order no.
Symbols used throughout the instruction manual, comprise:
4
Apply epoxy glue.
Apply instant glue (CA glue, super glue).
Apply grease.
Apply threadlocker (screw cement).
Assemble as many times as
specified (here: twice).
x2
Assemble left and right sides
the same way.
True-to-scale diagram.
Must be purchased separately!
Temporarily tighten.
Cut off excess.
Drill holes with the specified
diameter (here: 2mm).
Ensure smooth non-binding
movement while assembling.
Pay close attention here!
4
5
6
4
5
1
7
5
8
2
Part bags used.
Assemble in the specified
order.
Front Suspension
1
2mm
Apply rubber cement.
BRG001
No.BRG001
Ball bearings are optional!
(with optional part no.)
Cut off shaded portion.
4
Self-tapping (TP) screws cut threads into the parts when being tightened. Excessive force may
permanently damage parts when tightening TP screws. It is recommended to stop tightening when
the part is attached or when some resistance is felt after the threaded portion enters the plastic.
6
The threads are stripped.Overtightened.
Correct
Wrong
This kit contains screws and hardware in different metric sizes and shapes.
Before using them, check the screws on the true-to-scale diagrams on the left side in each assembly step. Some screws are extras.
5
SCREWS
Screw
Cap Screw
F/H Screw
Self-tapping (TP) Screw
TP F/H Screw
Set Screw
OTHER HARDWARE
Screw
3mm
12mm
3mm
12mm
Flat Head (F/H) Screw
Washer Nut
3mm
Metal Bushing Bearing
5mm
10mm
3mm
E-ring
Pillow Ball
6.8mm
5
BEFORE YOU BEGIN (2)
MEMO
Included engine has no screws to adjust Air/Fuel Mixture at slow engine speed.
6
Part bags used.
No.5
A B C
23
24
25
27 26
Shaded Parts are not used.
Shaded Parts are not used.
No.3
16
20
11
12
No.6
42 42 42
66B
67
62
41
41
41
Shaded Parts are not used.
ARRANGEMENT OF PLASTIC PARTS ON RUNNERS
/
7
1
Differential Gear
2
Gearbox
8
2 x 8mm
TP Screw
2
104
3 x 20mm
Shaft
2x8mm
2x8mm
x2
Firmly tighten the set screws onto
the flat spots.
Firmly tighten the set screws onto
the flat spots.
Differential Gear
102
105
102
103
104
103
101
Apply threadlocker
(screw cement).
x2
Assemble as many
times as specified.
Apply grease.
12
3 x 10mm
TP Screw
6
4 x 4mm
Set Screw
4
5mm
Washer
2
112
E4
E-ring
3 5 x 10mm
Metal Bushing
4
109
10 x 14mm
Metal Bushing
4
4
110
8 x 10mm
Metal Collar
107
108
109
110
3
111
112
108
110
109
108
106
4x4mm
5mm
4x4mm
4x4mm
4x4mm
5mm
4x4mm
BRG004
BRG004
BRG001
BRG001
Ball bearings are optional !
(with optional part no.)
x2
TP
TP
E
8
2
3 x 10mm
TP Screw (Silver)
1
104
3 x 20mm
Shaft
2
4 x 4mm
Set Screw
3 x 8mm
Screw
1
Brake Piston
125
1
122
18mm
Aluminium Spacer
5
Center Gearbox
4
Center Gearbox
104
109
109
119
118
117
120
121
122
110
110
3x10mm
3x30mm
Front
Firmly tighten the set screws onto the flat spots.
Top
Note the direction for .
128
Apply threadlocker
(screw cement).
3x8mm
123
108
124
125
126
128
128
4x4mm
4x4mm
Note the direction.
approx. 4.5mm
Ensure smooth non-binding
movement while assembling.
109
10 x 14mm
Metal Bushing
4
1
3 x 30mm
TP Screw
2
3
Front Suspension
3x10mm
3x10mm
Note the direction.
Front
Pay close attention
here!
114
115
113
Apply grease.
BRG004
BRG004
BRG004
Ball bearings are optional !
(with optional part no.)
4
3 x 10mm
TP F/H Screw
TP
128
4.5mm
TP
TP
9
Part bags used.
Rear Gearbox
7
8
2
3 x 10mm
TP Screw
6
Center Gearbox
1
2
3
129
3x10mm
3x10mm
Note the direction.
Front
Assemble in the specified order.
132
133
130
131
3x10mm
3x10mm
(F/H) (F/H)
3x10mm
3x10mm
1
2
3
3x10mm
3x10mm
1
Front Suspension
4
3 x 10mm
TP F/H Screw
4
3 x 10mm
TP F/H Screw
4
3 x 10mm
TP F/H Screw
TP
TP
TP
TP
( ) ( )
No.2,
No.3
No.2,
No.3
10
Part bags used.
3x15mm
(F/H)
3x15mm
3x8mm
7
4
4
5.8mm
Pillow Ball
13
4
7.8mm
Ball
8
4
3 x 15mm
F/H Screw
Right
Right
Left
Left
6.8mm
Ball End
Take care balls from
any damage when
assemble.
4mm
"A" marked
OutsideInside
9
Front Suspension
10
Front Suspension
4
9 6.8mm
Ball
2
4mm
Flanged Nylon Nut
2
3 x 15mm
TP Screw
3 5 x 10mm
Metal Bushing
4
Pay close attention here!
Ensure smooth non-binding
movement while assembling.
Assemble left and right
sides the same way.
Note the direction.
7
1
2
3
3
5
11
"B" marked
2
4
BRG001
BRG001
15
16
7
13
13
14
8
9
8
9
12
10
3x15mm
3x10mm
3x15mm
Note the
direction.
Do not
overtighten.
Do not
overtighten.
Apply grease. Apply threadlocker
(screw cement).
BRG001
Ball bearings are optional !
(with optional part no.)
6
2
3 x 10mm
TP Screw
4
15
7.8mm
Flange Ball
START
4
3 x 8mm
F/H Screw
3 x 15mm
F/H Screw
2
1
134
O-ring
Onry on left.
134
1mm
TP
A
B
TP
O
( )
No.2,
No.3,
No.4
No.2
11
19
11
Rear Suspension
12
Rear Suspension
3x15mm
3x8mm
7
2
4
5.8mm
Pillow Ball
8
Left
Right
Right
Left
Left
6.8mm
Ball End
Take care balls from any
damage when
assemble.
4mm
OutsideInside
4
9 6.8mm
Ball
2
4mm
Flanged Nylon Nut
2
3 x 15mm
TP Screw
3 5 x 10mm
Metal Bushing
4
Note the direction.
1
17
3
3
4
BRG001
BRG001
3x15mm
18
2
3 x 15mm
TP Screw
approx. 10mm
Part bags used. Pay close attention here!
Ensure smooth non-binding
movement while assembling.
Assemble left and right
sides the same way.
Apply grease. Apply threadlocker
(screw cement).
BRG001
Ball bearings are optional !
(with optional part no.)
15
15
7
14
9
8
9
8
20
21
Holes for
mounting.
4
15
7.8mm
Flange Ball
2
21
Screw Hub Pin
4
3 x 8mm
F/H Screw
1mm
TP
10mm
TP
100
No.2, No.5
No.5
No.2, No.5
12
Part bags used.
1
3mm
Nylon Nut
5x8x2.5mm
Plastic Bushing
4
23
13
Steering
14
Steering
15
Bumper
2
2.6 x 6mm
Screw
7
2
5.8mm
Pillow Ball
approx. 19mm
29
30
29
x2
3x30mm
23
23
24
23
23
22
25
26
27
28
7
7
31
31
32
3mm
2.6x6mm
3x8mm
3x10mm
3x10mm
Hex Wrench (small)
ÒCÓ marked
BRG002
BRG002
BRG002
BRG002
4
29
5.8mm
Ball End
x2
Assemble as many
times as specified.
Ensure smooth non-binding
movement while assembling.
BRG002
Ball bearings are optional !
(with optional part no.)
4
3 x 10mm
TP Screw
2
3 x 8mm
Screw
Widen the slit with
a screwdriver and
fit in the snap.
20100
19mm
C
TP
No.1
No.1
No.1
13
Part bags used.
16
Shock
17
Shock
18
Shock
x4
x4
x4
x4
Assemble as many times as specified.
4
29
5.8mm
Ball End
Cover the shaft with cloth before
gripping it with pliers.
Pull down the piston and slowly pour in oil.
Confirm that each piston moves
up and down smoothly.
Move the piston up and down
to get rid of air bubbles.
Center
Keep the piston pulled down and screw on
causing excessive oil to overflow.
Piston
Oil
Becomes softer. Becomes harder.
33
34
29
approx. 18mm
38
39
40
38
35
36
37
37
18mm
No.2, No.6
No.2, No.6
No.2, No.6
14
Part bags used.
3x15mm
3x8mm
3x8mm
3x8mm
21
Side Guard
19
Front Shock
20
Rear Shock
2
41
Shock Bushing
2
3 x 15mm
TP Screw
2
41
Shock Bushing
2
3 x 15mm
TP Screw
41
3x15mm
41
43
44
42
42
42
Holes for mounting.
42
6
3mm
Plastic Nut
6
3 x 8mm
Screw
Pay close attention here!
Assemble left and right sides the same way.
TP
TP
No.2, No.7
No.2
15
Part bags used.
22
Fuel Tank
23
Engine
3
3 x 8mm
Screw
46
Silicone Tube
Cut to one 215mm piece.
46
Silicone Tube
Cut to one 110mm piece.
Included engine has no screws
to adjust Air/Fuel Mixture at
slow engine speed.
120 130 140 150 160 170 180110100
9080706050403020100
Tighten the screws with
one sheet of paper inserted
between both gears.
Engine Assembly
3x8mm
3x8mm
45
3x10mm
Use in .
31
Cut off excess.
215mm 110mm
5mm
46
2
3 x 10mm
TP F/H Screw
215mm
110mm
1
31
TP
No.2, No.7
No.2, No.6
16
Part bags used.
54
54
3x10mm
3x10mm
3x10mm
(F/H)
3x10mm
(F/H)
3x10mm
3x10mm
2
3mm
Nut
47
48
50
49
49
51
46
46
52
53
4x4mm
4x4mm
3x8mm
3x30mm
3mm
Muffler
24
Assemble muffler hke picture.
Front View
10
3 x 10mm
TP Screw
2
3 x 30mm
Screw
2
4 x 4mm
Set Screw
Throttle Servo
Steering Servo
x2
25
Radio
Cut off excess.
x2
Assemble as many
times as specified.
True-to-scale diagram.
Must be purchased separately!
45
51
43
1
3 x 8mm
F/H Screw
2
3 x 10mm
TP F/H Screw
TP
,
45 43
51
TP
( )
( )
No.6
No.2
No.2, No.6
17
Part bags used.
55
Make sure to place
the cord inside of
the box.
26
Radio
27
Radio
28
Radio
Switch
Switch
Switch
Antenna
Antenna
Receiver
Receiver Battery Box
Connect as per radio instruction manual.
1
57
Hook Pin
Pay close attention here!Must be purchased separately!
3x10mm
2x8mm
3x10mm
2x8mm
58
57
56
2
3 x 10mm
TP F/H Screw
3
2 x 8mm
TP Screw
TP
TP
No.2, No.6
No.2, No.6
18
Part bags used.
62
60
63
64
60
61
3x3mm
29
Radio
30
Radio
No.2, No.6
31
Radio
Assemble in the specified order.
Pay close attention here! Temporarily tighten.
Ensure smooth non-binding movement while assembling.
Cut off shaded portion. Drill holes with the specified diameter.
2mm
True-to-scale diagram.
Must be purchased separately!
2
60
2mm
Stopper
1
61
Spring
Brake Rod
1
64
Servo Horn
Note the top
and bottom.
2mm
Holes used.
Holes used.
approx.
16mm
approx.10mm
approx.14mm
Supplied with the servo.
Supplied with the servo.
Neutral
6mm
65
1
Tapered Washer
66B
1
65
Brake Lever
1
3 x 3mm
Set Screw
46
Silicone Tube (5mm)
2
3 x 3mm
Set Screw
1
3 x 3mm
Set Screw
1
63
Throttle Rod
Bend.
1
59
Steering Rod
90¡
90¡
2mm
90¡
66B
Note the direction.
65
66B
67
2
1
4
3
5
3x3mm
1
2
3
59
3x3mm
2x8mm
3x3mm
20mm
1
2 x 8mm
TP Screw
Link to the
bottom hole.
2mm
5mm
16mm
10mm
14mm
TP
No.6
No.2, No.7
19
Part bags used.
Set up a and b screws as shown.
32
Throttle Linkage Adjustment
68
69
79
Confirm the setting
before installation.
Position where brake starts working.
Throttle Stop Screw
Adjust with throttle
stop screw.
Contracted.
( )
( Brake )
( )
( High )
( )
( Neutral )
approx.1mm
approx.1mm
34
Wheels
After fitting wheels to tyres, apply instant glue as shown.
Fit wheels inside tyres as shown. Twist the tyre onto the wheel.
74
(thin : for front)
75
(thick : for rear)
72
(thin : for front)
73
(thick : for rear)
x2
x2
For Front
For Rear
4
3 x 15mm
TP Screw
7
2
5.8mm
Pillow Ball
2
29
5.8mm
Ball End
1
70
3 x 73mm
Rod
33
Rear Wing Stay
Cut off excess.
x2
Assemble as many
times as specified.
Pay close attention here!Apply instant glue
(CA glue, super glue).
a
b
approx. 60mm
29
70
29
3x73mm
71
71
7
7
77
3x15mm
3x15mm
Carburetor open fully ?
Brake works properly ?
a,b
1mm
TP
1mm
60mm
6050403020100
No.2, No.7
20
Part bags used.
35
Wheels
< Front >
< Rear >
Cross Wrench
Cross Wrench
36
Rear Wing
37
Body Shell
Assemble left and right sides the same way.
Remove this nut from the chassis
and fasten the tire with it.
2
3 x 10mm
TP Screw
3x10mm
4mm
4mm
For Front
For Rear
Hold the shaft tight
with a hex wrench
to tighten the nut.
Cut off shaded portion. Drill holes with the specified diameter.
6mm
6mm
6mm
6mm
76
78
Hole for antenna pipe.
TP
6mm
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