INSTRUCTION MANUAL
1:14 SCALE RADIO CONTROLLED
.21 ENGINE POWERED RACING BOAT
INDEX
REQUIRED FOR OPERATION 2
RADIO PREPARATION 3
BEFORE YOU BEGIN 3
ASSEMBLY 4~19
OPERATING YOUR MODEL SAFELY 20
ENGINE DESCRIPTION 21
CHECKLIST BEFORE RUNNING 21
ENGINE STARTING 21~22
BREAK IN 22
ENGINE ADJUSTMENT 22
MAINTENANCE 23
THE ENGINE DOES NOT START OR IMMEDIATELY STALLS 23
EXPLODED VIEW 24~25
SPARE PARTS & OPTIONAL PARTS 26
27~28
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 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.
LENGTH: 1085mm (42.7")
*SPECIFICATIONS ARE SUBJECT TO BE CHANGED WITHOUT NOTICE.
No. 41461
This radio control model is not a toy.
UNDER SAFETY PRECAUTIONS
C
2004 KYOSHO CORPORATION
Before beginning assembly, please read these instructions thoroughly!
AA AA AA
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
Grease
SILICONE SEAL
Special Glue
Epoxy A
Epoxy B
BEC
2 2.5mm
DC
2-channel radio with minimum of 2 servos.
CAUTION: Only use a surface radio with 2 channel and
2 servos !
For more information on the radio, refer to its instruction manual.
AA-size Batteries
2
4
3
1
Servo and Receiver sizes
Wheel-type
Stick-type
Battery Box
If already supplied with the radio,
there is no need to purchase a battery
box separately.
REQUIRED FOR OPERATION
Install suitably sized servos &
receiver as indicated below.
Required for engine starting:
No.73201
WARNING:
Gasoline or kerosene
cannot be used.
Glow Fuel & Fuel Pump Plug Heater / Charger
Super Starter Pack
Plug Wrench
F-Charger HP pump
Lockingjig/wrench
Fuel Pump
Approx. 3mm
Approx. 40mm
Approx. 20mm
Approx. 36mm
Approx. 20mm
Approx. 47mm
Approx. 33mm
No.80702
No.80312
No.96152
No.96154
No.695101
Fuel-proof paint
KYOSHO SPRAY COLOR
No.76301 76403
CAUTION: Before using
Kyosho Spray Colors,
always read the instructions.
If greater fuel resistance is required, use a urethane paint.
Tools required
Hex Wrench (1.5 / 2 / 2.5mm)
Epoxy Glue Diameter drill(2,3,9mm) Screw Cement
Cross Wrench
Grease
Silicone Sealant
KYOSHO Special Glue
Instant Glue
KNIFE EDGE REAMER
Phillips Screwdriver (L, M, S)
Needle Nose Pliers
Wire Cutters Scissors
Sharp Hobby Knife
CAUTION: Handle tools carefully!
2
TOOLS INCLUDED
No.695144
Spark Booster
No.695142
DC Quick Charger
3
3
/
No.
No.
RADIO PREPARATION
Set up the radio as explained below.
Stick-type
Wheel-type
Transmitter
Transmitter
ON
OFF
1
2
12
6
11
7
9
1
2
12
6
11
7
9
ON
OFF
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
Insert AA-size batteries into
the Transmitter.
Extend the Transmitter antenna.
Insert the AA-size batteries
into the battery box.
Plug in the battery box.
Unwind the Receiver
antenna.
Center the Transmitter trims.
Switch "ON" the Transmitter.
Switch "ON" the Receiver.
Make sure the servos move ac-
cording to your transmitter inputs.
Switch "OFF" the Receiver.
Switch "OFF" the Transmitter.
Retract the Transmitter antenna.
Servo
Switch
Receiver
Battery Box
5
4
3
8
10
ON
OFF
1
2
Correct
Wrong
Before assembling, please read the following carefully:
Check the contents of this kit. Should parts be missing, immediately contact the retail shop or your nearest Kyosho distributor.
When tightening a self-tapping (TP) screw: continue tightening until fastened correctly,
even if screw is hard to turn.
However, do not overtighten it as the plastic thread inside the part may strip!
First, read through this instruction manual and understand the modelÕs con-struction.
Do not use the wrong size or shaped small parts. Check the illustrations & use the correct
part for each step of assembly.
How to read the instruction manual:
BEFORE YOU BEGIN
A:
B:
C:
D:
A: Indicates the assembly step number and the section that will
be assembled.
B: Key Number, Part Name, True-to-scale Diagram, Quantity Used.
C: All parts except screws are identified by key numbers.
For purchasing spare parts, find the key number of the part
needed in the spare parts list and refer to the left column to
look up the corresponding order number.
D: This instruction manual uses several symbols.
Please note them during the entire assembly at the bottom of
each page.
3
A
B
C
31
2mm
Nylon Nut
Linkage Post
31
31
2
2
2mm
2mm
14
Rudder
D
4
9
mm
2mm2mm
2mm
2mm
9mm
9mm
Radio Box
1
Painting
2
Hull
3
1
4
45
4
5
4
5 4
1 2 3
3 1 2
Drill holes with the specified
diameter.
Coat the hull's interior and exterior surfaces with glow fuel-resistant coating
as the shape of the ABS resin material may change if soaked in glow fuel.
1
2
3
Before painting, remove any dirt or oil by washing with mild detergent.
Completely dry the surfaces to be painted.
Coat in fuel-resistant paint. Also paint parts 1, 2, & 3 that fit inside the hull (4).
Make pen marks on 4 through the holes in 5 as per the arrows.
Pay close attention
here!
9
mm
3mm
3mm
9mm
TP
TP
Hull
4
Engine Mount
Engine Mount
5
6
4
6
7
8
9
7
67
10
5
Drill holes with the specified
diameter.
7
Check direction of 7 and
position of holes.
Pay close attention
here!
8
2.6x12mm
2.6x12mm
3x15mm3x15mm
3mm 3mm
3 x 8mm
Note the direction.
Short
Top
Long
3 x 12mm
2.6x 12mm
TP Screw
4
3 x 15mm
Screw
4
3mm
Nut
1
1
Ensure smooth non-binding
movement while assembling.
5
3 x 8mm
TP Screw
3 x 12mm
TP Screw
6
x2
x2
Engine Mount
Engine Mount
7
8
Drive Shaft
9
Pay close attention
here!
3 x 15mm
Screw
3 x 15mm
3 x 15mm
3 x 15mm
Mount collar
Note the direction.
Note the
direction.
Make sure epoxy glue does
NOT enter holes on 15.
Apply plenty of grease.
High
Low
Low
High
6
10
Assemble as many times
as specified.
11
13
13
15
14
14
16
17
17
18
18
15
15
11
3 x 15mm
Screw
4
4 x 4mm
Set Screw
1
4
12
11
4 x 4mm
4 x 4mm
Hex Wrench (2.0mm)
3 x 15mm
3mm
3mm
3mm
Washer
Tentatively tighten.
Apply grease.
Apply epoxy glue.
Firmly tighten the set screw onto
the flat spot.
2.0mm
E
Drive Shaft
Rudder
Rudder
Pay close attention
here!
Assemble in the
specified order.
7
19
22
21
24
20
20
23
23
23
4x4mm
Hex Wrench (2.0mm)
19
17
4x4mm
0.5mm
Firmly tighten the set screw onto
the flat spot.
10
11
12
4 x 4mm
Set Screw
1
E3
E-ring
2
3 x 14mm
Screw
3mm
Nut
2
2
4 x 8mm
Metal Bushing
2
Note the direction.
Top
E-ring
E-ring
3
1
2
Make sure that
there is no gap.
3x14mm
3mm
8
TP
Rudder
Rudder
13
14
Pay close attention
here!
4 x 8 x 3mm
Stainless Bearing
4 x 9 x 4mm
Collar
2mm
Nylon Nut
Linkage Post
Rudder
15
3 x 12mm
TP Screw
4 x 4mm
Set Screw
4 x 4mm
Note the direction.
Firmly tighten the set screw onto the flat spot.
Long
Short
26
25
25
27
28
29
30 29 28 27
30
31
31
Hex Wrench (2.0mm)
Tentatively tighten.
Ensure smooth non-binding
movement while assembling.
1
2
25
27
2
0.5mm
4
2
2
2mm
2mm
3x12mm
3x12mm
31
Engine Mount
Engine Mount
Rudder
Pay close attention
here!
Assemble in the
specified order.
9
3 x 15mm
3 x 15mm
3mm
3mm
Completely tighten the 3 x 12mm TP screws.
Completely tighten the 3 x 15mm screws.
Allow movement of 0.5mm.
16
17
18
3 x 15mm
Screw
3mm
Nylon Nut
3mm
Washer
4
4
4
Moves easily.
Vertical
1
2
2
2
2
3mm
3mm
3 x 12mm
3 x 15mm
3 x 15mm
3 x 12mm
Align down the center.
x2
x2
Drive Shaft
19
Hull
20
Trim Tab
21
Pay close attention
here!
Apply epoxy glue. Assemble in the
specified order.
Assemble as many times
as specified.
3 x 35mm
Cap Screw
3 x 3mm
Set Screw
3mm
3mm
0.5mm
Position so there is no gap and
fasten with cellophane tape.
Do not move until epoxy has completely hardened.
Detach engine mount and 18 & 5.
Leaving no gaps.
Push through all the way in
direction of arrow.
33
34
35
32
33
18
18
3mm
3mm
2.6 x 12mm
2.6 x 12mm
2.6 x 12mm
4 x 4mm
3 x 15mm
3 x 15mm
3 x 35mm
3 x 3mm
2
3mm
Stopper
2
2
5
5
1
1
2
3
3
10
Hex Wrench (1.5mm)
Use a thin rod to apply epoxy to the shaded area 2 ~ 3 separate times.
TP
3 x 8mm
TP Screw
Trim Tab
Pay close attention
here!
Assemble in the
specified order.
Assemble left and right sides
the same way.
Apply epoxy glue. Apply instant glue
(CA glue, super glue).
11
Tighten 3 x 35mm cap screw until
horizontal.
Align direction of the screw.
Parallel
22
Drain Valve
23
Radio Box
24
3 x 12mm
TP Screw
3 x 12mm
3 x 12mm
3 x 35mm
Cap Screw
8
4
2 x 8mm
Screw
2
36
37
37
15mm
38
37
39
40
2x8mm
1
2
3
1
3 x 8mm
3 x 8mm
Assemble so
moves freely.
37
3mm
3mm
3
mm
Radio Box
25
Radio Box
26
Hull
27
20
20
Pay close attention
here!
Drill holes with the specified
diameter.
Must be purchased
separately!
Assemble in the
specified order.
3 x 8mm
TP Screw
3mm
3mm
Face in direction of the arrow.
Install parts that were removed at step
Throttle Servo
Rudder Servo
3 x 8mm
3 x 8mm
3mm
3mm
3mm
18
41
41
2.6 x 12mm
2.6 x 12mm
4 x 4mm
3 x 15mm
3 x 15mm
8
3 x 10mm
Screw
2
3mm
Nylon Nut
2
3mm
Washer
4
5
5
1
2
2
3
3
12
3 x 10mm
3mm
3mm
2.5mm
90
2.0mm
Muffler
Pay close attention
here!
Assemble in the
specified order.
13
Fix 42 in arrow's
direction.
28
Muffler
29
3 x 15mm
Screw
1
3 mm
Washer
2
3 mm
Nylon Nut
2
3 x 10mm
Cap Screw
2
42
42
42
44
43
1
1
2
4
3
1
5
2
2
3 x 15mm
3mm
3 x 10mm
3mm
3mm
Hex Wrench (2.5mm)
Insert as far as
shown here.
Strap (Small)
Strap (Large)
Insert all the way.
45
45
46
47
48
49
Strap (Large)
49
47
1
4 x 4mm
Set Screw
Hex Wrench (2.0mm)
4x4mm
Fuel Tank
30
Fuel Tank
31
Hull
32
Fill in with Silicon Sealant.Ensure smooth non-binding
movement while assembling.
14
5mm
Silicon Tube (130mm)
56
Silicon Tube (300mm)
53
Silicon Tube
Nut
50
51
52
54
55
Remove the flashing.
55
1
1
Washer
50
130mm
(130mm)
(300mm)
300mm
56
Silicone Tube
Cut off.
54
57
58
58 5857
58
58
56
54
54
A A
A = A
Tighten the 5mm Nut so
moves as shown.
180mm 250mm 250mm
Hull
Assemble in the
specified order.
Apply instant glue
(CA glue, super glue).
15
33
34
Radio Box
Radio Box
35
O-ring P2
1
1
56
Silicone Tube
Silicone Tube
180mm
180mm
Cut into the above lengths.
Connect as per radio instruction manual.
56
Silicone Tube
250mm
250mm
56
Silicone Tube
Receiver
Battery Box
Tape
250mm
250mm
56
60
62
61
62
2
65
66
63
64
64
63
60
59
Anntena
Supplied with the switch.
Anntena
Note the direction.
62
O-ring P5
64
<OFF>
<ON>
OFF
ON
2
3
1
Switch
Must be purchased
separately!
2mm
2mm
2mm
1.5mm
1.5mm
Radio Box
36
Radio Box
37
Apply instant glue
(CA glue, super glue).
Must be purchased
separately!
16
3 x 3mm
Hex Wrench (1.5mm)
3 x 3mm
Hex Wrench (1.5mm)
Supplied with
the servo.
71
68
68
68
69
70
69
68
Throttle Rod
3 x 3mm
Set Screw
1
3 x 3mm
Set Screw
2
1
Align parallel and fix with 3x3mm Set Screws
13mm13mm
Use this hole.
2mm
2mm
13mm
1.5mm
Radio Box
17
38
39
Radio Box
Must be purchased
separately!
Pay close attention here!
Throttle Rod
Crank Rod
3 x 3mm
Set Screw
1
1
1
Supplied
with the servo.
Hex Wrench (1.5mm)
Use this hole.
With the throttle stick in neutral.
Waterproofing
Tape
With the throttle stick pushed up.
Parallel Parallel
1mm
Cut 69 so it operates
as per diagram to right .
73
69
59
59
73
72
72
69
69
69
72
A
A=B
B
3 x 3mm
43mm
Attach tape without gaps.
Attach tape to
the place.
2mm
1.5
mm
1.5mm
TP
TP
TP
TP
Hull
40
Cabin
41
Decal
42
Drill holes with the specified
diameter.
Assemble left and right sides
the same way.
Cut off shaded portion.
18
74
78
78
76
77
Antenna
20mm
10mm
3 x 8mm
TP Screw
3 x 8mm
1
2 x 8mm
TP FH Screw
2
2 x 14mm
TP FH Screw
2
3 x 8mm
TP Screw
8
3
2 x 14mm
2 x 8mm
3 x 8mm
Decals with no number apply any place.
The decal numbers between brackets are only for the opposite side.
Apply the decals to the spots indicated.
27 26 25 23 21
63 2
20
20
18 16 12 1014
6
27
( )
26
( )
24
( )
23
( )
22
( )
( )
7
4 8 12
11151719 13
945
7
( )
75
3x14mm
Adjust Running
Adjusting Propeller Angle
19
43
Running posture and speed can be adjusted by changing the angle of the propeller and trim tab.
Trim Tab Adjustment
Wind : light
Waves : low
Wind : strong
Waves : high
To raise the bow.
To lower the bow.
Wind : light
Waves : low
Wind : strong
Waves : high
Raise both Trim Tabs
Lower both Trim Tabs
Make sure that
there is no gap.
Adjust the angle by loosening the 3x14 screws.
To raise the bow.
Standard position.
To lower the bow.
Slightly lower the right Trim Tab to adjust the axis of the hull when running straight.
Adjust with 3 x 35mm Cap Screw.
If turning is difficult, trim the fins a little at a time.
Cut off.
Tighten
Loosen
Lowers Trim Tab
Fin
Raises Trim Tab
01
05
OPERATING YOUR MODEL SAFELY
Do not put your hands or
any objects into rotating
parts, as this could result in
serious accidents!
Handle fuel ONLY outdoors!
Vapors and exhausts are
very noxious and dangerous
to your health!
Right after use, do NOT
touch equipment on the
model such as the engine
and muffler, because they
generate high temperatures!
You may burn yourself
seriously by touching them!
ONLY use glow fuel for radio
control models! NEVER use
gasoline and kerosene in
R/C models as they cause
fire.
DO NOT swallow fuel OR let
it into your eyes! Do the
following immediately: if fuel
is swallowed, in-duce vomit--
ing. If fuel gets into eyes,
rinse them and consult an
orphamologist!
For accident prevention, do not run your model under
the following circumstances:
Always be considerate of other beach users whilst using this
model.
When rivers are swollen or their current is strong!
Also make sure that nobody is using the same
frequency as you do at the same time!
When the boat behaves or operates strangely!
With R/C boats, discover a new world of pleasure.
Wheth-er you run your boat on lakes, rivers or else-
where, take precautionary measures to avoid accidents.
In order to avoid accidents and personal injury, be sure to observe the following:
20
Fuel is highly inflammable and high-explosive!
PROHIBITED
PROHIBITED
NEVER use fuel indoors or in places with open fires and
sources of heat!
Store fuel ONLY in cool, dry and dark places out of
children’s reach! Tightly shut the cap!
Do NOT dispose of empty fuel
cans into a fire! There is danger
of explosion!
In the sea or in other salt water.
When radio batteries are low on power!
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