Kyosho inferno DX 4WD User manual

'RADIO CONTROLLED 1/8 SCALE 4WD .21 GAS RACING BUGGY
In
• COMPETITION-ENGINEERED, HIGH-PERFORMANCE 4WD RACING BUGGY ,I
• QUICK, EASY ASSEMBLY AND ADJUSTMENT FOR TOP PERFORMANCE '-
• LONG SUSPENSION TRAVEL FOR TOP HANDLING ON ROUGH TRACKS
• FULLY-INDEPENDENT SUSPENSION WITH OIL-FILLED SHOCKS
• INCLUDES NEW LIGHTWEIGHT ALUMINUM CHASSIS
• NEWLY DESIGNED GEARBOXES COME ASSEMBLED AND ALLOW EASY
ACCESS AND MAINTENANCE
• FEATURES INDIVIDUAL FRONT AND REAR BRAKING SYSTEMS
-"
, 21 2-Cycle Buggy, Muffler, A i. Cleaner
Radio: 2-Channel with Heavy Duty Servos
Misc: Electric Starter, Glow-Driver,
2-Cycle Model Fuel

BEFORE BEGINNING TO BUILD
BEFORE BEGINNING TO BUILD THE INFERNO DX
4WD, MAKE
SURE IT'S THE RIGHT MODEL FOR YOU! .
We
want your experience at building this model to be a
success. So before you remove
any parts from their packages
and begin assembly:
• Read
through the entire manual carefully to make sure
that you are thoroughly acquainted with the model.
• If for any reason you think this model may not be for you,
Please Note: Your hobby dealer cannot accept a model kit
for return after assembly has begun. Return it
immediately if you have doubts or concerns.
The Kyosho Inferno DX is a sophisticated, high-
performance gas powered model
with many moving parts.
Unlike electric radio-control models, this style kit requires
more general maintenance and patience to operate
successfully. But if you're ready for fast, exciting gas
racing and welcome the chance to know your car inside
and out, then you're ready for the 118 scale Kyosho
Inferno DX 4WD.
DON'T LOSE YOUR PARTS
This Kyosho instruction manual uses a cross reference
system to help you locate all of the bagged parts. DO NOT
open each
bag and dump out the parts. Carefully remove
the header card from the bag and discard the staple. Slip
the header card into the bag or tape it to the outside of the
bag so that the bag number shows. These bag numbers are
listed on pages 4 and 5 and will prove invaluable when
locating parts.
Head~er , Card Bag Nu~~:r
! ~."-:>~"
._~~ . = I
'. .
FIC·7 I
-.
--'Ie . '
]
Slip Inside Or Tape
To
Outside
In each step ofassembly each part will be labeled with 1)
The part number, and 2) Part name. To easily locate the
part, check the Bagged Parts List on pages 4 and 5.
Part Part Name
Number" •
(10) 5.8mm Ball End-®;;
FINDING THE SMALL PARTS
The back pages of this manual shows the small parts that
will be used in each step. For ease ofidentification, these
parts are shown actual size enabling you to place a screw
directly on
the picture to ensure you have selected the
appropriate size. Feel free to cut off this page to have beside
you
when building the kit. Quantity Used
Type
of Screw In This Step
Size
of Screw
M3 x 10 SfT Screw (21 -- t:::::
FINDING THE CORRECT SCREWS AND
WASHERS
IN THIS KIT
All nuts and bolts used throughout this kit are metric size.
Therefore, some of
the notations may not be familiar to you.
An M3 nut is a 3 millimeter (3mm) nut. An M3 x 15 screw
is
3mm in diameter and 15mm long. Some round parts may
be labeled as a "M4 Washer" (a washer with a 4mm inside
diameter) or a "3mm Bushing" (a bushing with a 3mm
inside diameter). For your reference, 1 millimeter equals
approximately .039 inches. Also on page 24 a
metric ruler is
provided.
M3x15 Screw
M4 Washer
O@ii@MII' •• 3mm
I I15mm
A few different types of screws are used in the construction
of
your model. Here are some examples and how they will
be indicated
in the instructions for example, Self Tapping
will simply be SIT screw.
Self Tapping (SfT)
/Hasa
Oll!l!lil!i(D tapered end
\
Coarse Thread
A self tapping screw has a coarse thread and is used to screw
into plastic. Be careful not to tighten the screw too much. This
may strip the plastic.
Screw
0".'.'. Fine Thread
Screws have a fine thread and are used with nuts most of the
time. They are for high stress joints where strength is required.
Flat Head Screw (F/H)
Has a tapered_~
head ~
Flat head screws have a fine thread and a tapered head. This
allows the head of the screw to be flush with the part it is
holding so
that the screw does not catch on anything.
P ~HASING PARTS FOR YOUR KIT
Hex Head Screw (H/H)
On Page 22 you will find a complete list of replacement and
Has a socket __ rm.-
optional parts . If by chance you need to replace a part, head ~
.... onsult this guide for manufacturer stock numbers and
'1tents. Hex
Head Screws have a socket head that takes a hex wrench
in order to turn. These are for areas that require tight joints
where normal screws may strip out.
o
KYOZ7502
- 24-
- 2 -
~

HELPFUL HINTS
Some precautions need to be observed when building your
Kyosho kit to avoid problems:
1.) Take your time and read the instruction manual
thoroughly. It's not how fast you can assemble the kit
but how fast it goes once it is assembled.
2.)
Try to avoid working over a shag carpet. In the event
that a small part or screw should fall onto the carpet, it
will be difficult to find.
3.) Place a
mat 01 towel on the work surface where you will
be building
the kit. This will prevent parts from rolling
off
and will protect the work surface at the same time.
4.) Use a muffin
tin or egg carton to separate screws, nuts,
washers, etc. This will make it easier to locate the
correct part.
5.) Avoid getting products like motor cleaner or screw lock
on
the plastic parts. They can melt the plastic which
will
damage the model.
6.) Avoid
running the model in very cold temperatures.
Both plastic and metal parts become brittle at low
temperatures. In addition, grease, oil and fuel become
thick causing premature wear and deficient
performance.
7.) Remove all
flashing from parts before assembly as
shown in the example below.
Use a sharp
Too much
hobby knife
~ . removed
to trim the
o Not INCORRECT
ffash oN.
~ •. enough
~ removed
8.) Trial fit all parts to ensure proper fit before attaching
them permanently.
9.) Do not use excessive force when tightening self tapping
type screws into plastic. Overtightening will cause the
threaded portion of the plastic to strip. It is
recommended to stop
tightening when some resistance
is felt after the threaded portion enters the plastic.
CORRECT INCORRECT
Threads Stripped
~
10.) IMPORTANT! Note the Grease and Screw cement
symbol throughout the manual and apply where shown.
11.) Avoid
using power screwdrivers when assembling your
kit. They tend to overtighten screws.
ffashing with
the cu~er .
SPECIAL SYMBOLS YOU WILL SEE
Certain symbols are used throughout the instructions. Pay
attention to their location.
-=<1iREASE1 Points where Grease should be applied.
~ Points where Screw Cement must be used.
REQUIRED TOOLS
THESE ARE INCLUDED
IN THE KIT.
Hex Wrench Set
4-Way Wrench
Grease
Screw Cement
THESE ARE NOT INCLUDED IN THE KIT.
Phillips Screwdriver
e [: E -;J
Hobby Knife (XACR4320)
Needle Nose Pliers (XACR2680)
~
Wire Cutters
<:
Awl
Lexan Scissors (KYOR1000)
~
Paint Brush (DAPR2000)
--= II
Cyanoacrylate Paint (Ask your hobby Striping Tape
(such as Jet, Zap, dealer for (such as Kyosho
Hot Stuff or Bullet polycarbonate paint). Micron Line
CA). Tape)
• -
.. .. ,.
.,
, ..
(KYOQ1100 .4mm Black)
(HCAR3500)
(KYOQ1101 , 7mm Black)
- 3 -

WARRANTY INFORMATION
WHAT THE INFERNO DX 4WD
WARRANTY MEANS TO YOU
• For 90 days after you purchase your INFERNO DX 4WD, Kyosho will either
repair or replace, at no charge, any incorrectly made part.
• iVlake sure you SAVE THE RECEIPT OR INVOICE you were given when you
bought your model! It's your proof of purchase - and we must see it before we
can honol· the warranty.
• To send your INFERNO DX 4WD in for repairs covered under warrant y, you
should send your car to Kyosho's authorized U.S. repair facility:
Hobby Services
1610 Interstate Drive
Champaign, Illinois 61821
Attn. Service Department
Phone: [phone]
•
For details on your return, be sure to follow steps 1-4 under the " Repair
Service Available Anytim e" section.
Limit of our Liability:
Our liability under this warranty is limited to the repair or replacement of
defective parts by Hobby Services and does not include cost of shipping to us.
Hobby Services does
pay the shipping e xp e nse to return warranty items to you.
Exclusion and/or Voidance of Warranty:
This walTanty does not apply to damage or defects resulting from misuse,
abnormal service, damage in shipment, damage resulting from a crash , or
damage to the car caused by the batteries. The warranty is voided ifthe model is
modified,
altered , or repaired by anyone other than Hobby Services. This
warranty gives you specific legal rights, and you may have other rights that vary
li·om state to state within the U.S. We are sorry, but we cannot be responsible
for crash damage andlor resulting loss of kits, engines , acces.sories, etc.
REPAIR SERVICE AV AILABLE ANYTIME
• AftE. the JD-day warranty has expired, you can still have your INFERNO DX
4WD
repaired for a small charge by the experts at Kyosho's authOl;zed U.S.
repair facility.
Hobby Services
1610
Interst ate Dri ve
Champaign, Illinois 61821
Attn. Service Departm e nt
Phone: [phone]
• To -speed up
the repair process, please follow the instruct i on~ liste d below:
1.) Under all circumstances, return the ENTIRE system: Bug !r.- and Radio.
2.)
Disconnect the receiver battery switch harness, and mak e sur the
transmitter is turned off. Make sure all batteries are disconnected alld 011)
fuel drained.
3.) Send written in st ructions which include: a list of all items returned, a
THOROUGH explanation ofthe problem and the service needed, and your
phone number where you can be reach ed during the day. If you expect
your repair to be covered und er warranty, be sure to include proof of date
of purchase (yo ur store receipt or purchase invoice).
4.) Also include
your full return address.
Repair charges and postage may be prepaid or billed C.O.D. Additional postage
charges will be applied for non-warranty returns. All repairs shipped outside
the United States must be prepaid in U.S. funds only.
Specification and Description Changes
AJI pictures, descriptions and specifications found in this instruction manual are
subject to change without notice. Hobbico maintains no responsibility for
inadvertent errors in this manual.
LIST OF BAGGED PARTS
Bag No. ! Key No. Description Qty. Step
-! 1 Shock Cap 2 2
r-
2 Sprinq Stopper 2 3
I 3 Sprinq
Ad ~ uster
2 3
I 4 Shock Piston 2 1
5 Shock Rinq 2 2
6 Diaohraqm 2 2
IDX-1 7 Shock End 2 1
8 Front Shock Case 2 1
9 Front Shock Shaft 2 1
10 Front Shock Sprinq 2 3
11 5.8mm Ball 2 3
M2.6 Washer 2 1
M2.6 Nut 2 1
Shock Oil 1 2
1 Shock Cap 2 2
2 Sorinq Stopper 2 I 3
3 Sorinq Adiuster 2 3
4 Shock Piston 2 I 1
5 Shock Rinq 2 I 2
IDX-2 6 Diaphraqm 2 2
7 Shock End 2 I 1
11 5.8mm Ball 2 3
12 Rear Shock Case 2 1
13 Rear Shock Shaft 2 1
14 Rear Shock Sorinq 2 , 3
M2.6 Washer 2 1
M2.6 Nut 2 1
'Bag No. Key No. Description Qty. Step
Ii
IDX-3
15 Rear Uooer Suso. Arm (A) 2 4
16 Upper SusP. Arm (B) 4 4
17 Front Uooer Sus,
P. Arm (C) 2 8
18 Rear Suspension Arm 2 5
19
Front S_usoension Arm 2 8
20 3mm x 27mm Shaft 4 5 6
21-
3mm x 44mm Shaft 4 4 5
22 4mm x 77mm Shaft 2 5
23 M3 Stopper 2 5
24
S.wil)q Shaft 2 5
25 Rear Wheel Shaft 2 5
26 Rear Hub (Left) 1 5
27 Rear Hub (Rroht) 1 5
28 8 x 16mm Bushinq 4 5
29 Tie Rod
(At 1 6
30 6.8mm Ball 1 6
31 6.8mm Ball End 4 6 10
32 Shock Bushinq 4 6 9
33 Rear Body Mount 1 6
34 Radio Post 5 13 15
35 Antenna Holder 1
16
36 Servo Post 4 16
4-Wav Wrench 1
Grease 1
Screw Lock 1
IDX-4 37 Hub Carrier (Left) 1 8
38 Hub Carrier (Riqht) 1 8
- 4 -

LIST OF BAGGED PARTS
Bag No. I Key No. Description Oty. Step Bag No. Key No. 1 Description Oty. Step
I Knuckle Arm (Left) 1
39 8 135 Manifold 1 10
I I
40 Knuckle Arm (Right) 1 8 M4x8 Screw 4
11
20 3mm x 27mm Shaft 4 8, 9 IDX-6 M4x10 Screw 4
11
21
3mm x 44mm Shaft 4 8 M3x10 Screw 1 10
41
4mm x 64mm Shaft 2 8 M3x25 Screw 1 10
42 King Pin 4 8 M3x10 H/H Screw 4 10
IDX-4 23 M3 Stopper 2 8 87 1
Wi'l9.StayJLef!l.
19
43 Front Wheel Shaft 2 8 88 Wi'l9.Stay (Right}. 1 19
24 Swing Shaft 2 8 89 Wi'l9.Holder (Left) 1 19
8mm x 16mm Bushing 4
1 28 8 90
WingHolder (Right) 1
19
44 O-Ring (P-4) 2 8
91 Wing Washer 2 24
45 Suspension Plate (B) 1 7 IDX-7 92 Wing Joint 2 19
46 Servo Saver Shaft
(A)
2 12 Wheel Stopper
93 4
21
47 Servo Saver Shaft (B)
2 12 94 Wheel Stopper.Bolt 4
21
48 Servo Saver (A) 1 12 8mm x 16mm Washer
95 4
21
49 Servo Saver (B) 12
1 96 O-Ring (Large) 4
21
50 Servo Saver (C) 1 12 97 2.6mm x 16mm Shaft 4
21
51
Servo Saver Spring 1 12 Drive Bevel Gear (Small)
98 2
52 E-Ring (E-7) 2 12 Drive Bevel Gear (Large)
99 2
29 Tie Rod
(A)
12
2 100 Bevel Shaft 3
Tie Rod
(B)
53 12
1 Bevel Gear (Small)
101
6
I 6
IDX-5 30 6.8mm Ball 12 102 Bevel Gear (Large) 6
31
6.8mm Ball End 4 12 103 Differential Case 3
54 Tapered Washer 2 12 104 2.6mm x 16mm Pin 6
55 6mm Aluminum Co
ll ar 2 12 105 Differential Case Parts 3
56 Torque Rod Pivot 1 13 106 Differential Joint 4
57 Front Bumper 1 14 107 Spur Gear 1
58 Radio Plate 1
16
108 Center Diff Joint (Lono) 1
59 Front Support Plate 17 109 Center Dill Joint (Short) 1
I 1
60 8mm Aluminum Collar 2 17 no 8mm x 16mm Bearino 2
61 2mm Stopper 18 Assembled 28 8mm x 16mrn Bushino 8
6
62 Linkage Guide 2 17, 18
111
Front Bulkhead (A)
1
63 Steering Rod 1 17 112 Front Bulkhead (B) 1
64 Linkage Spring 1 18 113 Rear Bulkhead (A) 1
65 Brake Rod 2 18 114 Rear Bulkhead (B' 1
66 Throttle Rod 1 18 115 Center Diff. Housino (A) i
67 Switch Boot 1
16
116 Center Diff. Housino (B) 1
68 Radio Cover 1 16 117 Center Housing Plate 1
69 Antenna Tube 1 16 118 Disc Brake 2
70 r Fuel Tank 1
15
120 Brake 2
71
Fuel Tank Cap 1
15 121
Brake Lever 2
IDX-6 72 Tank Seal 1 15 122 Suspension Plate
(A)
1 I
73 Rubber Bushing 1 15 123 Joint 2
74 Aluminum Pipe 1 15 124 Rear Suspension Holder 1
75 Fuel Tube 1 15 125 Front Drive Shaft 1
76 Strap (Large) 1 16 24 Sw
in g Shaft 1
77 Engine Mount 2 10 44 O-ring 1
78 Flywheel 1 10 126 Front Shock Tower 1
79 pilot Shaft 1 10 127 Rear Shock Tower 1
80 Clutch Shoe 2 10 128 Main Chassis 1
81
Clutch Spring 1 10 129 Body 1 22
82 M6x18 Washer 1 10 130 Wing
Loose 1 22
83 Clutch Bearing Case I: 1 10
In 131 Wheel 4 20
84 Clutch Roller 10
8 Box 132 Tire 4 20
Clutch Bell
85 1 10 133 Decal 1 24
E-Ring (E-3)
86 1 IDX-8
10 Screw Set
134 Mounting Plate 2
11
- 5 -

DSHOCK ASSEMBLY
Wrap a piece of pap er or
tape around the Shock I
Shaft to prevent the
pliers from scratching
the shaft.
\
M2.6Nut
@ Shock Piston
2.6mm Washer
® Front Shock Shaft
4) Rear Shock Shaft
Wrap a piece of paper or t~pe
Leave 2mm of
around the Shock Shaft to ~
thread showing
prevent the pliers from
when
installing the
scratChing~
Sh~OCk th~:h.ft ~ IG '""kSh,n En: .
m
~I I- ...•• ~ ~1
~ ~ ~ ® Front Shock Case
(f) Shock End 1J; Rear Shock Case
Assemble two Front Shocks and two Rear Shocks.
~ FILLING THE SHOCKS WITH OIL
L Pull the piston to the bottom of the 2. Keeping the piston at the bottom, gently set the
3. Check the operation of
the
case and slowly add oil. Once full, Diaphragm on the Shock Case. Then set the Shock shock. It should be smooth
carefully move
the piston up and down Cap on and secure it with the Shock Ring. while without making any swishing
to remove any
trapped air remaining
allowing
the excess oil to overflow out of the shock. noise. If the shock doesn't operate
inside. properly,
repeat the first two steps.
( ~ : Diaphragm
e
/¥- ® ,""kR;"
-- Shock Cap
Tighten the Shock
Ring tight enough
so that the oil will
not leak out.
Note: When ordeling replacement shocks, you
must purchase the KYOC5808 Front Shock
o Shaft and KYOC5809 Rear Shock Shaft also.
I] INSTALLATION OF THE SHOCK SPRINGS
Install the
Install the Shock Springs t.o all four shocks.
@ Front Shock Spring (short)
IjJJ Rear Shock Spring (long)
\
Trim Two of the
Spring Adjusters
so that they are
5.:1 mm long as shown.
STEP 1
, ~
: @ Spring Adjuster
Install the shortened Spring
Adjuster on the Front Shock (s hort ).
Front Shock
Install the Spring ~=~"'"
Adjusters so that
the pin on the
Shock Case is in
the slot as shown.
m
~ +L2I+
r:rt====r~m
Trim even with
the
third hole.
- 6 ~
STEP 2
(Shorter )
Rear Shock
(Longer)

1
II INSTALLATION OF UPPER REAR SUSPENSION ARMS
~
STEP 1 ~
~~.ef}
('fm ~ (i]J Rear Upper 1111+
1_ 22mm .1
M5 x 40 Set Susp . Arm (A)
Sc r ew
Assemble together both suspension
Install
the M5 x 40 Set Screw
arms to the measurement given above.
so
that 31mm is left out .
M3 x 20 HIH Sc rew
3mm x 44 mm
21 Su s pension Shaft
STEP 2
E·o li pIE."I\ _____ ~
Install the left side the
Use
this hole for the
same as the right.
M3x20 H!H Screw.
Suspension Shaft .
E-clip (E-2 .5)
Assemble two Up per Anns !,\
f-
H Rear Upper Susp. Arm (8)
~ INSTALLATION OF LOWER REAR SUSPENSION ARMS
20
M3 x3 Se t Screw
@ 4x 77mm Susp . Shaft
Bu sh in g
M4 x12 Set Sc r ew
Install the M4x12 Set Screw so
that it protrud es 3mm out the
bottom of the Su spe n sio n Arm .
Co: ~(O 0) I;; 2)
I
3mm
- 7 -

mREAR SHOCK
,A --- - ' ~ Shock Bushing
INSTALLATION
::II-- -=- -A~~...--- ~ Rear Body Mount
Rear Shock - ----o~
NOTE: To ensur e that
you don't lose the
3 x 27mm Susp. Shafts ,
.... !I
you
may file a flat spot at
' 81 3x 27mm Susp.
This end will be attached to the
the point the set screw
Shaff
Torque Rod Pivot in step 13.
will touch. This will hold
............
the shafts more securely.
TORQUE ROD ASSEMBLY
Assemble one Torque rod.
~
Install the 6.8mm Ball in the
side of the Ball End with the
l''8''~
!}
1- 41.5 -42mm-1
~ ~
Install the 6.8mm Ball Ends so
the rod is 41.5mm to 42mm long.
@Cd
tI INSTALLATION OF SUSPENSION - - (4
'S . Suspension Plate (B)
PLATE (B)
[1m M3 x 30
/ ¢3 washer
~/
---/ M3 Flanged Nut
}- -
./
///
/
-8 -

(:)INSTALLATION OF FRONT SUSP. ARMS
o ~
M5 x 40 Set ~ """ "" ""-U--
n~
Screw 1111+ Install the M5 x 40 Set
~ ==::~ L-.J
I ~ ~ @ Front Upper Screw so that 27mm is
~ Susp. Arm (C) left out.
Assemble together both s uspension anns
to the measurement given above.
~ Upper Susp. Arm (B)
Install these two E-clips before installing the shafts.
rim
Eoclip (E
o
2.5)
11 3 x 44mm
Susp.Shaft
8mm x 16mm Bushing @-' ..... -
Eoclip (E
o
2.5) ./'
@ Front Susp.
Arm
M4 x 12 Set Screw
@:
Assemble both sides .
® Hub Carrier (L) @ Knuckle Arm (L)
" -...5~ ~ - ; ;;~~ ~~
M4x18 SIT Screw
In stall the M4x64 ~~"
Suspension Shaft ~~ r
before installing the .
M4x18 Str Screwo
3mm
In stall the M4x12 Set
Screw so that it protrudes
3mm out the bottom of the
Suspension Arm.
To ens ur e that you don't
mFRONT SHOCK
"'- - - -@ Shock Bushing
INSTALLATION
Front Shock
lose
the 3 x 27mm Susp.
S haft s, you may file a
flat spot at th e point the
set screw will touch.
This will hold the shafts
more securely.
Use the
Middle hole.
- 9 -

rr.I ENGINE PREPARATION T f::::-""
M3x 10 HlH
Screws
W "" 25S,~., ! ,
~ ~ :~
"3>< 10""- (1) ----.. ~rtl \
0- r ~-_,~ : \,:
.., , 10 HIH So". (4 ) .3' 10 i - --- '" '--c
~ SO'"" ",,110" (o p"" ") ,@ C"C,,(
0-JI1(~ {!jrj
M3x10HlH ~ '~<
lJin es ~ __ _
'mENGINE INSTA
LLATION
Ones it m ay
M4 x 10 Screws ( 4)
~
@ Mounting Plates
M4 x 10 Screws
M4 x8 Screw ____ ____ _ _
For some en g1.to enl arge
be necessary
~
- 10-

1m CHASSIS PR-E-P-
@ Servo S
a\ er Shaft (8)
@ Eoelip (Eo7)
@i Servo S aver Horn (8)
@ ServoSa
ver Horn (C)
® Servo Saver Sp .
nng
M3 x 15 Serew
~ Tapered Washer
~. (purple)
~ ..... .
® M3 x 15 sere:·······
....... . ..
................•..... . ....
........
Center Rod
Steering TO
Asse bl Ie Rod
m e two Tie Rods
, j~ 68
, . mm Ball
@ Tie Rod CAj ~ jl-
S=P~~
to pivot ;;;; ~
. . ~
® R
a io Plate Post
M3x10srrs '
erew
- 11 -

@ 8S-129
Front Dill )
( 3§) 8S-1 09
(2O)BS-13~
® ( ~ l3Q:) 85-57
@>BSW-40
@DBS-l05
I
I
I
from @
"', @l" @ ~
~J @"'''' .I g ~';;"
r @'~ • O~r'@~
j@[g • II ""
'f v~ @
~
d'O \ 8S-77 1 Ir.;n '6"1
~ O/ ®~ \'1Y
BS
-43 1 . 1 1
1383
@8S-127
(85-13)
~- -®BS-78
1----t--@EF-39
«EXPLODED VIEW» @l8&-100
""~"

*BS-124
BSW-6
I I I I
@@@
BS -114
j- @J --------'--BS-l02
from @
1382
@BSW-40
@BS-l05
BS-55
~ @: BS-l09
-101
( Rear Dil l.)
@""" ~ . ~
@~~~ I I' ll
an i@lBS-l0l
\\... j i fromO

III INSTALLATION OF
M3 x 15 FIH Screw
FRONT ASSEMBLY
M3 x 15 F/H Screw
..
. usethe~l \
> C; " outside ' -----{(@),\ ) •••••• ~ ~
~
",. \W ."'
M3Nut ~
M4 x 20 srr Screw
rn
Note: The Muffler
and Air C leaner are
sold separate l y. All
O.S. engines corne
wi th an air cleaner. • T L
M3~10 srr Screw
~®L- __ ~ __
~
.
- 1> <
s~o« "~ .
\ .
~ Make a slight
I bend in the tube
Long
Ias shown below.
_ /@ Rubber
Bushing
Aluminum Tube bending diagram
C ··_··
( Actual size)
~ U"""""p'"
\
Mounting hole diagram
Muffler Wire
~
~ .. '"
o o
Fuel Tank
-14 -

Follow in order 1 through 3 for
1m RADIO TRAY
mounting the Ante nn a. .,
Route the servo
leads
through
the Radio Plate.
Servo Mounts
Receiver
II Radio Plate
Receiver
Battery Pack
@ Strap .
(Large)
@ Antenna
excess.
16HADIOTRAY
Use a hole that is 16mm
from
the center. Trim off
M3 x 10 SIT Screw
the sh aded area.
jj1 Front Support Plate
::J r =- -= (C 8mm Aluminum Collar
It I I M3 x3 Set Screw
I ! @ Linkage Guide
Use the
center hole
Adjust the Steering Rod so that
the center line of the servo arm
and the servo saver are parallel.
~ """" ~
Hold the Link age Guide with
a h
ex wrench when
tightening the M3 Nylon
N
ut . Tighten completely then
loosen 1/2 turn .
- 15 -

1m CONTROL RODS
Use a servo arm th at h as
holes 16mm and llmm from
the center as shown. Remove
the shaded area
[jJ
62 Linkage Guide
Low
Throttle
(Idle)
Low t hr ott le should
have
slight tension on
Carburetor Set-Up
the Brake Levers.
When
Brake is applied,
the carboshould not
close any f urther , b ut
st ill app ly pressure to
the brake pads.
~
1m REAR MOUNT ASSEMBLY
® 2mm Stopper
1t~~
2mm Washer: Stopper
High Throttle
High Throttle should allow
the ca rbo to fully open. Be
s
ur e that the throttle linkage
rod
doE'S not bend because of
too mu ch servo throw. If this
happen s, move the Linkage
Guide one hole in on the
Servo Arm.
-Qlllllllllll®
M3 Nut
NOTE: If installin g an
O.S .. 21RX-B you will
need to
purchas e the
BS-114 Linkage Set for
the throttle rod.
®! Throttle Rod
M3 x3 Set Screw
Cut two pieces
offuel
tubing
6mm lon g.
- 16 -/'-
1

@l Tire
Glue the tires to the wheels using
fE WHEELS
@I Wheel
/
instant type (CA) glue. Make sure to
allow
the glue to work its way into the
groove of the wheel. ~
rvLn ~
o
Make sure that the
tires are firmly seated
into the grooves.
flITIRE INSTALLATION
REAR
(Wide)
19 Wheel Boll
M3Nuls
Wheel Bolt
---
FRONT
(Narrow)
?_ ~ \ k~~
I
~} 8x 16 x1. 5mm Washer
m TRIMMING THE BODY Engine Hole
Trim
out the shaded areas as ShOW~ £R
Drill or cut the needed holes .
Antenna Hole
@ Drive Washer
: ~~ ~
@ 2.6mmPin
shaded area.
l$i·fW·'·················:
These spet'ially d esi ~ed scisso l' s
make
trimming bo dies a bl" eeze, The:
sander comes in ha nd y f or finishing
the rough edges.
KYOR1000
Curved
~~~~
~~,,~
, - 17 -

~,
~~
PI] PAINTING THE BODY
Mask off the windows prior to painting or
paint them your choice ofcolors.
First, wash the body with water and a mild detergent (dish
washing liquid works well) to remove
any oil or dirt. Rinse and
dry thoroughl y. Paint tM inside oftM body . You can obtain a
color scheme by
putting pin stripi ng tape on the outside of the
body and painting between the lines on the inside. You may also
choose to
spr ay the body by masking offdifferent color areas with
masking tape. Be
sure to always apply the darkest colors first.
mMOUNTING THE BODY AND WING
Body Pins
~~
_ Bend the Body Pins up at
V the ends . This will allow
~ you to install and remove
~ them easier.
At this time add the decals to the body as
shown on the Box lid or however you prefer.
lliJ~illJ® :
@·e:!·,.···· H;;' 6:
I~~T~:
: Micro Line Tape
: is ideal for nicely
: detailing any
: body.
l$'jofW°,.······~· :
• Poiyca Color Paint. is
: available for pain ting
• yo ur" Poly-Carbonat.e body.
: Twelve g reat lookillg
:
co lors are a\'aiJable.
~
Body
Pins
® Wing Washer
J \~Wi'9
..•...[. .. ...
, . ,.-
... ~
.;
- 18 -

STARTING THE ENGINE
It is advisable to install the
Starting Procedure
Dirt Guards if you plan on
(Read through the engine instruction
Step 1: Attach the
racing in extremely dirty
manual for a complete guide into proper
Glow Clip to the Glow conditions.
break in and operation of the engine.)
1. Fill the fuel t ank with 2-Cycle model engine
Plug in the engine.
Dirt Guard (R) fuel.
(optional)
2. Turn on the radio system and check for proper
operation of both servos. Make
sure lhat the
thro ttle is at idle before engaging the starter.
M3 x 10 SIT Screw
3. Check t.he ro tation direclion of the starter. The
engine is designed to operate
in one direction,
counter clockwise. Therefore, when starting
from t.he back as showD in the drawing, th e
..tG
sta rter itself s hould turn clockwise when
J0 ..tG
viewed from the front.
:.::::= - ~ 4. Set the main needle valve according to the
M3 Nylon Nut
. / /
manufadurer's instruction.
~~ / ..... 0) /,~
LI
/ 5.
Pu sh the button on the star t er and place to the
r_.LI---L- L-
fl ywheel.
6. Once the engine starts, set it back on lhe
ground and remove the clip.
J ~~
~(J(}}O 0 00 7.
If the engine revs up and then quickly di es ,
0 open
the ne edle valve one or two clicks. This
o
CO
0 will richen
the mixture slightly. If the engine
responds sluggishly a nd makes "pop ping "
o Q) Q)o
sounds, Close th.e needle valve one 0 " two
clicks.
This will lean out the engine slightly.
8.
Allow
the engi ne to fully warm up by slowly
driving
the car around the track before making
any
further mixture adju stments.
9.
Once the engine is up to normal temperature,
t un e following the engine manufactures
recommendations.
1.5V Battery
Step 2: Hold the starter wheel
Warning: To preve nt dirt
against the flywheel and squeeze the
from ente ring the engine, button. Make
sure that the engine
clean
the filter with soap
starts in the proper direction
and wat er every 3-4 tanks
(Counter C
lo ckwise).
of fuel.
The n saturate the
filter with oil.
Muffler should face
the gTound.
Inferno OX Hop-Ups
Now that yo u have tried the Inferno DX and are hooked on gas cars, its time to hop-up the Inferno DX and go racing. The following is a
short l ist of hop-ups we think will allow you to be competitive in gas racing.
Bearing Set ....... ... ..... ............. KYOC2218 (8mmx16mm)
The bearings will reduce friction allowing th e engine to run faster and
cooler. They will also reduce wear on the shafts that turn in them.
Large Oil Filled Shocks .. ... .... KYOC5733 (Front)
The
larg e oil filled shocks will allow the Inferno DX to handle rough
KYOC5734 (Rear) tracks and l arge jumps better. They will also improve the handling in
the corners by reducing chassis roll.
Quick Fill Fuel Tank ............... KYOC4012 In 1/8 scale off-road racing, most races are 10-30 minutes long. This requires a
pit-stop for fuel which means getting fuel into the fuel tank quickly. The
Quick Fill
Fu el Tank comes with a flip top cap allowing the tank to be filled
quickly,
it can be done in under 5 seconds with practice.
Hard Drive Bevel KYOC3321 (Small) For racing in competition the hardened Drive Bevel Gears will be more
KYOC3322 (
Large) durable. They are able to withstand the sudden torque put on them as the. car
(requires two ofeach)
lands after going over jumps.
Steel Main Gear KYOC4559 The Steel Main Gear is able to hold up better under very dusty conditions and
helps dissipate heat from the clutch bell.
Fiber Brake Disc
KYOC2591
If the track you are racing on requires frequent braking, the plastic stock
(requi res two sets) brake disc will heat up and wear quickly. The Fiber Brake Disc will keep the
brake disc cool and slow the car more efficiently.
- 19 -

EXPLODED VIEW OF ASSEMBLED DIFFERENTIALS AND SHOCKS
Front / Rear Diffs
~ Diff",oti,l A~,mbly
@SS,121
I @ss,n
..... ''I \§- M4x4 Set Screw
i ", (> I @ SS,39
··········"".ll @@SS,77 ~-~@_SS'5_2 __ SS--,,-" 1
0
_
6
__ --,
~
@, I (>(> M3x10 SIT Screw
~
: ' '-, @ @
I ,J . 0 ~@SS'36
...... ~~
@!lBS-lll ~~ ®----M4Washer
...... ''l1li>....
Center Diff e -. u @lBS-37
~ ""0
Front / Rear Diffs
" 0
·0. ~
..................
@SS,107 1
.........
...........
M4 Washer ----@
M3x12 SIT Screw
I
%"... 1&lSS,77
, ~ ' -'
,,@~
Servo Saver
~- ®
~ - , w
•••••••
l!
~ c(l)
Rear Shock
2U02
Center Dill
- 20-