No. 31191
REQUIRED FOR OPERATION
RADIO PREPARATION
BEFORE YOU BEGIN
ARRANGEMENT OF PLASTIC PARTS ON RUNNERS
ASSEMBLY
ADJUSTMENT
OPERATING YOUR MODEL SAFELY
EXPLODED VIEW
SPARE PARTS & OPTIONAL PARTS
2 3
3
4 5
6 7
8 27
27 28
29
30 32
33 36
INDEX
Before commencing assembly, please read these instructions thoroughly.
SAFETY PRECAUTIONS
This radio control model is not a toy!
First-time builders should seek the advice of experienced modellers before
commencing assembly and if they do not fully understand any part of the
construction.
Assemble this kit only in places out of children's reach!
Take enough safety precautions prior to operating this model.
You are responsible for this model's assembly and safe operation!
Always keep this instruction manual ready at hand for quick
reference, even after completing the assembly.
*SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.*SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
© 2001 KYOSHO
INFERNO MP
-
7.5 Yuichi Kanai Edition
THE FINEST RADIO CONTROL MODELS
R
INSTRUCTION MANUAL
1
2ch radio control set with 2 servos.
Stick-type
2ch radio set.
Wheel-type
2ch radio set.
Battery for Receiver
AA-size Batteries (For Transmitter)
AAAA
AAAA
Servo Receiver
REQUIRED FOR OPERATION (1)
Suitable servos & receiver
2
Engine / Muffler / Tire
This kit requires a .21 class engine.
This kit requires a 2 channel radio con-
trol set with 2 servos.
Because there are stick-type and wheel-
type transmitters, use which ever fits
your convenience best.
Switch the reverse (transmitter) for the
throttle control.
For more information on the radio con-trol
set, refer to its instruction manual.
3
Required for engine starting:
No.71312
6V-600mAh
RX
RX Ni-Cd Battery
No.71641
6V-1000mAh
Ni-Cd Battery
Engine for .21-class cars
Only using a type of .21
class engine, which is made
crank shaft and pilot shaft
as one part (SG shaft only).
Muffler
Manifold
Plug
Tire
No.96422
Quick Fill Fuel Bottle
No.IFW-37
SP
(FEMCA)
SP Silencer (FEMCA)
No.39514
Manifold (O.S.21RZ, Picco, Nova Rossi)
No.39516
Manifold (
O.S.21RG)
No.W-5651
Super Multi Pin Tire
No.96411
One-touch Plug Heater Set
No.80312
Locking Jig & Wrench
No.1793
Starter Box
Glow Fuel Fuel Pump Plug Heater
Plug Wrench Starter Battery
4
Paint
5
Other equipment required.
S
I
L
O
C
N
E
O
I
L
I
Shock Oil
M
Strap (M)
For painting the body, use Kyosho
paints for models!
No.1701KP / KY
Fluorescent Strap
KYOSHO SPRAY COLOR
No.76501 76711
No.2230
POLYCA COLOR
Joining Pipe
No.92515
Muffler Joining Pipe
No.73802
RC
RC Model Fuel
PRO Spec Fuel (Buggy)
S
P
R
A
Y
C
O
L
O
R
R
K
Y
O
S
H
O
S
P
R
A
Y
C
O
L
O
R
R
K
Y
O
S
H
O
2
6
Tools required
REQUIRED FOR OPERATION (2)
SPECIAL TAPER REAMER
No.80311
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!
TOOLS INCLUDED
Sharp Hobby Knife
Phillips Screwdriver (L.M.S)
Needle Nose Pliers
Box Wrench
RADIO PREPARATION
Instant Glue
Cross Wrench
Grease
Wire Cutters
Grease
Awl
Set up the radio control system as indicated below.
1
2
3
5
6
7
8
9
10
11
4
1
START
FINISH
2
3
4
5
6
7
8
Install batteries. (Transmitter)
Extend the antenna. (Transmitter)
Connect the charged Ni-Cd battery to
the receiver.
Extend the antenna. (Receiver)
Center the trims.
Switch on. (Transmitter)
Switch on. (Receiver)
Make sure the servos are in command.
Switch off. (Receiver)
Switch off. (Transmitter)
Retract the antenna. (Transmitter)
1
2
3
4
5
6
7
8
9
10
11
Screw Cement
Rubber Cement
Hex Wrench (1.5mm, 2mm, 2.5mm, 3mm)
3
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!
Tentatively 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.
1901
No.1901
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
No.1
No.4
No.5
6
ARRANGEMENT OF PLASTIC PARTS ON RUNNERS (1)
158 158
164164
166
166
166 166
163
166 166
17
49
49
70
74
41
41
72
191
21
192
62
189
190
61
29
29
25
24
30
28
37
16
36
34
35
36
Use the parts within the dotted lines as tunning options.
Shaded parts are not used.
Shaded parts are not used.
1
No.6
No.9
7
ARRANGEMENT OF PLASTIC PARTS ON RUNNERS (2)
49
16
65
146
142
141
147
143
144 145
92
134
122
123
133
126
149
149
125 129
127
133
101
128
91
64
49
17
Shaded parts are not used.
2
No.2
8
Part bags used.
1
Gear Differential
Assemble in the specified order.
Apply grease.
8
3 x 10mm
TP F/H Screw
4
3 x 12mm
TP F/H Screw
6
5 8 x 16mm
Ball Bearing
3
4 x 4mm
Set Screw
4
11
4 x 10mm
Shim
6
6 6mm
O-ring
2
4
2.6 x 14mm
Shaft (Black)
201
2.6 x 12.8mm
Shaft (Black)
18 T (Black)
18 T (Black)
7
Flat surface
10
10
9
11
11
11
18 T (Black)
203
203
202
205
203
12 T
(Black)
Step
202
205
12 T (Black)
Step
202
205
12 T (Black)
Step
Silicone Oil #700
20 T (Silver)
20 T (Silver)
10 T
(Silver)
10 T (Silver)
204
206
TCD Gear Oil
Fill up to 80%.
Fill up to 80%.
Fill up to 80%.
206
TCD Gear Oil
207
8
201
6
1
204
4x4mm
5
15
8
5
12
6
201
3x10mm
2
8
4
6
1
2
4x4mm
5
15
8
5
12
6
4
3x10mm
18 T (Black)
203
202
205
203
12 T
(Black)
Step
204
201
6
1
204
4x4mm
5
15
7
5
13
6
201
3x12mm
< >
< >
< >
For Front
For Rear
For Center
Pay close attention here!
4
4
202
Differential Shaft (A)
2
9
Differential Shaft (B)
2
2
2
1
1
1
3
3
3
1
1
1
2
2
2
4
4
4
3
3
3
TP
TP
O
< >
< >
< >
18 T
18 T
18 T
12 T
12 T
12 T
#700
20 T
20 T
10 T
10 T
LSD
LSD
18 T
12 T
A
B
No.4, No.5,
No.10
No.4, No.5, No.10
9
Part bags used. Apply threadlocker
(screw cement).
Pay close attention
here!
3
Rear Gearbox
4
Rear Shock Stay
Tighten the set screw to the flat spot.
24
208
22
25
26
27
5x4mm
4x10mm
4x15mm
3x20mm
3x10mm
3x12mm
4x10mm
Holes for
mounting.
1
5 x 4mm
Set Screw
2
4 x 10mm
Screw
2
4 x 15mm
TP Screw
2
3 x 20mm
Cap Screw
1
3 x 10mm
TP Screw
2
4 x 10mm
Screw
2
3 x 12mm
TP Screw
Assemble left and right
sides the same way.
No.2, No.4,
No.5, No.10
2
Rear Gearbox
Adjust the backlash
with the shims.
2
4 x 20mm
TP Screw
5
5
16
19
,
20
19 20
17
1
3
2
21
4x25mm
4x20mm
18
2
2
4 x 25mm
TP F/H Screw
19
20
13 x 16mm
Shim
2
5 8 x 16mm
Ball Bearing
Assemble in the
specified order.
Apply grease.
(Silver)
TP
TP
TP
TP
TP
Thick
Thin
No.4, No.5
No.5,
No.10
10
Part bags used.
6
Rear Suspension
7
Rear Suspension
x2
Assemble as many times
as specified.
Assemble in the
specified order.
Pay close attention here!
Assemble left and right
sides the same way.
For adjusting the
ground clearance.
Top
Bottom
1mm
Ò R Ó marked.
approx. 14.5mm
2
54
2.6 x 17mm
Shaft
2
5 x 4mm
Set Screw
2
3 x 8 x 5mm
Plastic Collar
36
35
211
5
34
36
5
2
1
3
54
33
39
38
39
37
4x12mm
5x4mm
41
212
41
Ò L Ó marked.
x2
True-to-scale diagram.
2
4 x 12mm
Set Screw
4
39
E-ring (Silver)
4
5 8 x 16mm
Ball Bearing
2
38
3 x 48mm
Shaft (Black)
41
7.8mm
Ball End
Adjust the wheel base by using the other
spacer instead of .
4
36
No.5, No.10
5
Wing Stay
Note the types
of screws !
28
29
209
209
30
210
210
29
210
210
3x15mm
3x15mm
4x20mm
4x20mm
4x15mm
4x15mm
2
4 x 15mm
TP Screw
2
4 x 20mm
Screw
4
3 x 15mm
Cap Screw
4
210
3mm
Head Washer
Reverse screw
2
212
Rear Upper Rod
< >
< >
For left side.
For right side.
Ò R Ó
Ò L Ó
14.5mm
E
36
TP
< >
< >
No.4, No.10
No.4,
No.10
11
Part bags used.
9
Rear Suspension
10
Rear Suspension
2
3 x 12mm
Screw
4
2.6 x 5mm
F/H Screw
2
3 x 4mm
Set Screw
Assemble in the
specified order.
Pay close attention here! Ensure smooth non-binding
movement while assembling.
Assemble left and right
sides the same way.
Holes for mounting.
46
48
210
49
49
50
1
2
4
3
1
2
3mm
3x4mm
3x4mm
3x4mm
3x3mm
3x3mm
3x12mm
2.6x5mm
2.6x5mm
51
53
52
51
3x10mm
3mm
Nylon Nut
2
46
2
26mm
Suspension Bolt
2
48
7.8mm
Ball
2
3 x 10mm
Set Screw
2
3 x 3mm
Set Screw
2
5.8mm
Ball
53
2
52
4
51
5.8mm
Ball End (S)
No.4, No.10
8
Rear Suspension
For left side.
For right side.
43
44
44
45
3x10mm
Holes for
mounting.
4
44
E-ring (Black)
2
43
4 x 74mm
Shaft
2
3 x 10mm
Cap Screw
2
45
7.8mm
Flange Ball (Black)
Stabilizer Ball (Black)
2
210
3mm
Head Washer
2
3 x 4mm
Cap Screw
Diameter 2.8mm
S
E
2.8mm
No.4,
No.9,
No.10
12
Part bags used.
12
Chassis
13
Front Gearbox
Assemble in the specified order.
Apply grease.
1
3 x 18mm
Cap Screw
1
76
6.8mm
Ball
No.6, No.10
5
5
16
18
19
,
20
19 20
17
60
1
2
3
2
4x20mm
4x20mm
76
57
58
56
3x18mm
3x10mm
1
56
Torque Rod Ball
2
58
6.8mm
Ball End (L)
4
4 x 20mm
TP Screw
2
5 8 x 16mm
Ball Bearing
19
20
13 x 16mm
Shim
Adjust the backlash with the shims.
1
3 x 10mm
F/H Screw
No.9, No.10
11
Chassis
55
4x20mm
4x20mm
4 x 20mm
TP F/H Screw
4
Long
L
TP
Thick
Thin
TP
No.6, No.10
No.6, No.10
13
Part bags used.
15
Front Shock Stay
16
Front Suspension
2
3 x 12mm
TP Screw
2
2.6 x 17mm
Shaft
Apply threadlocker
(screw cement).
Assemble in the
specified order.
Assemble left and right
sides the same way.
27
214
3x20mm
4x10mm
4x10mm
3x12mm
3x12mm
64
68
69
69
33
5
5
66
54
67
65
4x10mm
4x10mm
5x4mm
1
2
3
4
4 x 10mm
Screw
2
3 x 20mm
Cap Screw
4
4 x 10mm
Cap Screw
4
5
54
8 x 16mm
Ball Bearing
2
5 x 4mm
Set Screw
69
Knuckle Collar
4
ÒLÓ marked.
ÒRÓ marked.
Holes for mounting.
Pay close attention here!
No.5, No.6, No.10
Tighten the set screw to
the flat spot.
14
Front Gearbox
62
213
61
4x15mm
4x20mm
5x4mm
1
5 x 4mm
Set Screw
4 x 15mm
TP F/H Screw
2
4 x 20mm
TP F/H Screw
2
< >
< >
For left side.
For right side.
TP
ÒLÓ
ÒRÓ
TP
TP
< >
< >
No.5, No.6, No.10
14
Part bags used. Assemble in the specified order. Pay close attention here!
Assemble left and right sides the same way.
18
Front Suspension
2
76
6.8mm
Ball
74
76
72
215
39
75
46
39
3mm
1
2
3
4
4
39
E-ring (Silver)
2
75
3 x 40mm
Shaft (Black)
46
2
26mm
Suspension Bolt
2
2
72
6.8mm
Ball End
3mm
Nylon Nut
approx. 6mm
No.5, No.6, No.10
17
Front Suspension
71
43
39
39
44
44
70
4x12mm
1
2
3
1
2
3
For right side.
For left side.
2
4 x 12mm
Set Screw
4
39
E-ring (Silver)
4
44
E-ring (Black)
2
43
4 x 74mm
Shaft
2
71
3 x 38mm
Shaft
For adjusting the ground clearance.
Top
Bottom
1mm
Reverse screw
2
215
Front Upper Rod
6mm
E
E
E
15
Part bags used.
No.6, No.10
20
Chassis
4 x 20mm
TP F/H Screw
4
77
4x20mm
4x20mm
3x10mm
1
2
2
1
3 x 10mm
TP Screw
TP
TP
Assemble in the
specified order.
Assemble left and right
sides the same way.
Ensure smooth non-binding
movement while assembling.
No.6
No.10
2
3 x 12mm
Screw
4
2.6 x 5mm
F/H Screw
2
3 x 4mm
Set Screw
49
49
217
1
2
3x4mm
3x4mm
3x3mm
3x3mm
3x12mm
2.6x5mm
2.6x5mm
51
53
216
51
3x10mm
2
3 x 10mm
Set Screw
2
3 x 3mm
Set Screw
2
5.8mm
Ball
53
2
216
4
51
5.8mm
Ball End (S)
Stabilizer Ball (Silver)
Diameter 2.3mm
19
Front Suspension
S
2.3mm
16
No.8, No.9, No.10
No.8, No.9, No.10
23
Center Gearbox
22
Center Gearbox
4
3 x 6mm
F/H Screw
87
88
89
89
220
220
90
91
92
219
220
149
149
3x6mm
3x6mm
4x15mm
4x15mm
3x15mm
3x10mm
(F/H)
3x10mm(F/H)
3x3mm
3x3mm
Use thick one.
4 x 15mm
TP F/H Screw
4
2
3 x 3mm
Set Screw
91
88
87
Bend the rods
if they contact
the plate.
7mm14mm
Part bags used. Pay close attention here!
No.8
21
Center Gearbox
79
218
79
79
79
80
80
80
78
80
78
78
78
82
218
83
78
78
Center Differential
218
20mm
Disk Plate Bolt
8
79
Brake Pad (Black)
6
78
Brake Caliper
approx. 13mm
Apply rubber type glue.
4
1
3 x 15mm
TP Screw
3
3 x 10mm
TP F/H Screw
3
220
3mm
F/H Washer
TP
13mm
TP
TP
17
No.7, No.9, No.10
Note the types
of screws !
25
Steering
58
59
224
56
100
225
225
225
210
101
103
3x15mm
3x15mm
3mm
3mm
4x10mm
3x10mm
4x10mm
(Flanged)
1
4 x 10mm
Screw
4
4 x 10mm
F/H Screw
3 x 15mm
F/H Screw
2
3mm
Nut
2
3mm
Flanged Nut
4
59
6.8mm
Ball (silver)
6
58
6.8mm
Ball End (L)
2
103
Tapered Collar
4
4x10mm
4x10mm
Long
Short
Note the
direction.
Remove these screws
and retighten after
installing .
3x8mm
Part bags used. Apply threadlocker
(screw cement).
Pay close attention here!
Assemble left and right
sides the same way.
True-to-scale
diagram.
No.7, No.10
24
Steering
222
223
221
211
211
95
97
98
98
99
99
3mm
3mm
3x10mm
3x10mm
4x10mm
4x10mm
Long
Short
2
3 x 10mm
Washer
2
3mm
Flanged Nut
2
99
Steering Pin
2
98
Steering Collar
Note the direction.
Tentatively tighten.
2
4 x 10mm
F/H Screw
4
221
6 x 10mm
Ball Bearing
Reverse screw
1
3 x 10mm
F/H Screw
1
3 x 8mm
Cap Screw
2
56
Torque Rod Ball
4
225
4mm
F/H Washer
1
210
3mm
Head Washer
2
224
Tie Rod
approx. 24.5mm
100
56
Holes for
mounting.
206
58
Short
( )
L
24.5mm
18
Part bags used. Pay close attention here! Must be purchased separately!
No.3, No.10
27
Engine
Insert a sheet of paper
before installing.
180
180
4x10mm
4x10mm
4x6mm
4x6mm
Front
4
4 x 6mm
F/H Screw
4
4 x 10mm
Flanged Cap Screw
No.3, No.10
Use taper collet
included in the kit.
26
Engine
1
5 x 8 x 0.2mm
Shim
227
105
106
107
108
109
110
111
111
112
3x10mm
5x8x0.2mm
Assemble the following parts
with pulling the crankshaft.
Engine
105
1
3 x 6mm
Cap Screw
4
3 x 10mm
Cap Screw
1
110
5 x 20mm
Shim
105
1
Tapered Coret
1
5 x 10mm
Washer
2
111
5 x 10mm
Ball Bearing
1
107
Pilot Nut
3x6mm
5x10mm
5x8x0.2mm
3mm
A number and / or type of shim need to be adjusted depending on the type of engine.
1
3mm
Washer
Ensure smooth non-binding
movement while assembling.
1
105
No.8, No.9,
No.10
19
Part bags used.
Note the types of screws !
29
Fuel Tank
Pay close attention here! Must be purchased separately!
183
121
122
183
123
3x10mm
3x15mm
3x15mm
124
Cut the Silicone Tube, depending
on Engine and Muffler.
2
3 x 15mm
TP Screw
2
3 x 10mm
TP F/H Screw
124
No.9, No.10
Bend so it fits into the muffler.
Manifold
Nylon Strap
Muffler Joining Pipe
Muffler
Muffler
28
1
4 x 4mm
Set Screw
2
3 x 6mm
F/H Screw
3x6mm
4x4mm
184
185
Note the direction for O-ring.
228
TP
TP
O
No.10
20
Part bags used.
32
Radio
3x10mm
3x10mm
4
3 x 10mm
TP F/H Screw
Must be purchased separately!
No.9, No.10
No.10
30
Radio
31
Radio
2
3 x 8mm
Screw
1
2 x 30mm
Screw
2 x 20mm
Screw
1
7
2 x 8mm
TP Screw
2
130
Hook Pin
130
130
125
193
131
126
127
128
129
3x8mm
2x20mm
2x30mm
2x8mm
2x8mm
2x8mm
Antenna
Better to fill some sponge
between radio box and
receiver as well as battery.
Switch
Receiver
Battery
Switch
2mm
Drill holes with the specified diameter.
2mm
TP
TP
2mm
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