Kyosho Landjump 4wd User manual

LAND JUMP 4D
No.2397
============
4 Wheel Drive Buggy
===================
TECHNICAL DATA
Length ........... .
515 rrm
Break .............. . Di sk Break
Wi dth ............ .
270 mm Gear Rati 0 ••••••••••.
8.5:1 - 10:1
Height
........... . 200 rrm
Front Sus .......... . Doub 1e Tra il i ng
Chassis Heigh .. .. .
40 mm
Rear Sus. . .
........ .
Semi Trailing
Wheel Base ..... . . .
315 mm Weight .............. . 3.4
kg
Front Tire
....... .
11 O¢ x 48 rT1l1 Proportional System .. 2ch
Rear Tire .. . . .. . . .
11 O¢ x 48 rrm Engine .............. . . 19 - .21
Drive
System ..... . Side
Winder &
Chain Drive
Thank you very much for purchasing the RIC Car "LAND JU~1P 4D". To be able
to assemble your
"LAND JUMP 4D" properly so it will run with maximum performance,
we recommend that you proceed with the assembly work following closely this
instruction booklet.
By reading this instruction booklet to the end throughly before you start to
assemble
and keeping in mind the general construction of the car, it·will enable
you to get started with the assembly work very smoothly. If you are going to use
a
new engine, by BREAKING IN the engine in accordance with the instruction sheet
that comes with the engine, it will enable you to get long engine life and miximum
performance.
ARTICLES REQ UI RED OTHER THAN THE KIT
Transmitter UM-3x6 -8pcs.
Receiver
UM-3x4 -4pcs.
Battery
for Proportional
Radio Control System
Note:
This model being designed for Enya
19, 21X and 0.S.21 Engines.
An optional parts and minor modifica-
tion necessary when use other engines.
Grow P1 ug
(1.5 Wh ite Go 1d
(ENYA .19 and .21X or O.S. 21
will
be the best) Engine)
- 1 -

2
TOOLS REQUIRED FOR ASSEMBLING .
Wrench -Driver + Driver Radio Plier Awl
Round File
Scissors
.. ;> A>(~ ~
Masking Tape
~;nYle T~P~ ~ .
Cutter Sand Paper
Cement Pa int
ARTICLES REQUIRED FOR RUNNING
Battery for
Fue 1 Pump
Plug Heating Booster Cord
Electric Starter
1 Inse rt "E" ring OJ into grove on front center shaft
( 2), then fit onto the shaft torque cl utch recei vi ng
plate ®. front sprocket Q) and torque clutch@in
sequence .
Tap torque clutch pin ~ into torque clutch pin
guide \l;,
fit on wave washer ']) and is put together
as illutrated but M4 hexagon nut is tightened so
that it l'Ii11 hit against the "0" cut (flat part)
of the shaft.
(Note) As torque clutch pin guideCZ)adjusts t he
strength of the clutch la ter it should only be
temporarily attached.
[Small parts used in steps 1 - 4 are included
in
front part (A) bag.]
_ M4 Hexagon Nut
- 2 -

~
~ ® CD M4 Hexagon Nut
rr~ . \. ~""~ ~ M4 Hexagon Nut
~ ' ~ / &- ~ 1
\ / ~ I .
® ~ i I o~ C __ ~ I
:c l~(bt~
3 Insert front center shaft ~ '\ 'f l:k1!}
bearing ®into front axle \ \ \
ffi fit on joint@ but as CD C
this is also adjusted later, ® ®
have it temporarily attached.
[Small
ins te p 5 -
incl
uded in
part (S) bag.]
parts used ~
11 are I
rear ~
~
M5
. / Hexagon Nut
5 Insert rear shaft bearing ~ into rear axle ~, Fit
onto rear sprocket ~ boss, main disc Q} as
ill us tra ted, insert rear center shaft (3l as shown
in illutration, match the "0" cut portion to M5
hexagon nut and tighten firmly.
4 Completed torque clutch
part illutration.
~~ i
~~ -- j /
@tHexagon
,,ret
~.
i
@
6 Install joint t~ onto
the
shaft.
7
Install disc pad ~ with M3 screw as illustrated.
8 Brake shaft ~ is screwed in
Tighten
lightly M3 x 16 screw being careful not as
illustrated but tighten to
to over
tightening and then stop with instant the point so that the brake
drying cement. If tightened too much, the plate pad ~ can just be pressed in
may bend. with your hand.
- 3 -

C
Ic
~ ~ \\
~
M5 Washer
@
M3 x 25
Screw
9 Linkage guide eJ is installed onto brake 10
Install collar ~ together with
horn ~O but tighten the nut to the extent
muffler
installation bracket ~.
so that the 1i nkage gu i de e)J wi 11 rota te
freely. Next, brake horn eO is set into
place on the brake shaft n , ~ but at this
point, with the main disc Q] in locked
condition leave a
gap of about 3 mm i~
between the brake horn ,( 0: and joint 1 61 .
®
11 Install firmly rear ~ \ '-... ~ ~ ~
} ~~
A~
~ Y ~
"
~ "
suspension arm axle ~ ~~ ~
Make length 0 A
with stopper ell as ~ '>.... ~
and B the same
illustrated. ~1 J)/ ~
~ ~f' +
~W) ===
up
r)
L':l
end so it
M3 x 20 / @
is raised aboi)'t
Cap Bolt M3
2 mm. /
Washer
~~~ ~
the chassis parallel
~mall parts used in steps
~ 12 - 16 are included in front
, part (B) bag. ]
~ 12 Install onto main chassis GO I
l'l front axle mount 0, joint
~ ~asher collar ~, front arm axle A ~
/ ~as illustrated .
G. _
.. ~
M4 x 25
~ Cap Bolt
- 4 -

0 ,ce and
after setting in place
has been finished,
there will
too
much p1a1
Nut
- M3 x 20
Cap Bolt
/ ~ \
( ~~
ighten so
r~ not be
~ on
Loosen up
~
both side,
13 Install completed torque clutch part onto 14 Install completed rear axle part
front axle mount e). For adjusting, the onto the chassis.
hole is made in oblong shape. The correct
position is adjusted at the time the chain
is installed. In this assembly step, have
it temporarily tightened. Have the front
arm axle B lnserted through the mount.
M3 x 8 Screw ------- li
M4 Washer -- _
16 Install side member ~ onto
main chassis.
@
[Small parts used for
1(>
steps
17 - 24 are
included in engine
15 Install linkage guide G5 onto servo saver
parts bag. ]
~ it will move freely. Next install servo
saver
~ onto servo saver installation
17 Tap in clutch pin
hardware
~ and then onto the chassis.
~.into flywheel
" .... ,\_- ®l
- @
18 Engine mount (A) ~ is installed to spur
gear
mount ~ with M3 x 10 screw but be
aware that the OS and Enya engine installa-
tion direction is different. Install by
observing the illustration closely.
x 10 Screw
In case the circle mark is in the
location
shown in the illustration
the circle mark will be on the
opposite side
of for OS-2l. Enya
19. 21X. -5-

05-21
Circle mark to the inner side
mm
For OS has
1ine marks.
20 When using .pS-21 ABC engine. engine
mcunt (B)!?9 is installed so the
circle marked side will face inward
and the flywheel 3- ]: , clutch sheet
43 are inserted in sequence and
tightened firmly into place with
pilot shaft ~).
Circle mark is on the outer side
19 When using Enya 19X or 21X , first engine
mount (B) ~~ is installed so that the
side with the circle mark will face
outward, then
insert onto the engine
shaft in the order of flY\'Iheel spacer 4 ~ ' ,
flywheel ' ~J, clutch sheet 4) and install
fi rmly 50 it will not loosen with pil ot
shaft ' 50 .
e
be
off .
cement
install
lining.
Bend long side in crank
shape
so it will
difficult to come
21 Install cl utch shoe Q9 onto cl utch pi n
22 Fjt onto pilot shaft bearin washer
G8. insert long side of the clutch spring
~y, clutch bearing @. bearing
(0 into the hole of clutch pin 88 and the
collar~. clutch bearing ~~.
shorter side into the hole of clutch shoe cl utch
bellW. bearing washer 4£1
\19.
in sequence insert "E" ring ~
into the slot of the pilot shaft
making it so that clutch bell ©
will not come off.
- 6 -

r~6 Washer _,;
M6
Washer
r15 Nut
23 Insert spur gear shaft ~4 through each washer and tighten into place s~ it will
not loose,n
up with M5 nut. Next screw on M5 nut onto tensioner shaft 6.S and
install as illustrated by inserting the washers. As this tensioner shaft (~ ' is
used to adjust the tension of the shaft after the chain has been installed, have
the nut temporarily tightened.
ENYA 19, 21 X
05-21
M3 x 30
Cap Bolt
25
~luffl e r ad a pter Q) is installed onto the engine
but
be aware that the installation direction
of OS 21 and Enya 21 is different. Install
according to the illustration. Also, it is
recommended to apply bath corking in between
the engine
and the muffler adapter ~ to
avoid exhaust leakage.
h~ '. ~
~ "_ ~ A
- @-
~ r ./"
~
'
~
.
;:~ ~s~ ' ~, 3
'. - -: - . . . -
.. Adjust ~o th
_ ___ ~ here wlll
a out
3mm
~ A @W
() 0 @ @ ( 0 0
®e~
@j - '"
~
~ ~ .
~ M3 ~ 5 Srn'N
e M3 W ar he ~ @J
ay @ --..... lJ
. ~ ~ ~
Install ~ chain n.
- 7 -
~ .: ., ~ ~
' ~~'>->b I
~\ \~; '. t .
. ~ " ' '' ~ ~
/' '0 '
26 The completed power unit is
installed onto the main chassis
dO with M3 x 18 cap bolt.
27 Chain ® for driving is set onto the
sprocket as i.
ll ustrated, fit on
chain joint 0 A" and 6"J B and join
wi th cha inc 1i P ' 62.
After joining of chain ~O has been
finished, adjust by moving tension
shaft @ a~d fron~ axle CD to get
proper chaln tenSlOn.

so that exhaust side
will face up as illutrate
Washer
Nut
29 Connect muffler adapter
with muffler with muffler
pipe
~
~ f9 .
® As
same
the bolts
Set @ Q
W4
~
I 0
M4
and install muffler
assembly onto muffler bracket
28 Muffler 67, 68 is assembled as i llustrated but set into
place so that the exhaust side of the pipe does not hit
against the fuel tank. Also, it would be best if some
kind or corking material is applied to the connection
of the muffler to prevent exhaust leakage.
®l
/ M4 Washer
M4 Nut
th is bo It is
thightened at the
time the
body is
installed j u st have
inserted
without tightening.
30 Install onto fuel tank V ), bushing ~j , pipe (1] cap f5' as ~
illustrated. Next match the protruding part of fuel tank OJ
with the indented part on theJuel tank i nstallation plate - "[6
and by setting joint collar ru in between chassis @ as if
sandwiching the tank install into place together.
[Small parts used in steps 31-42 are included in
Scre I
~
M3
v
M3
-~
x 15 ~1~
_.
~
~ ~=rr ll d~f
t '-......
'
linkage
part bag .]
her
_______ ® 31 Insert M3 washer and M3 x screw into rubber
\
~
15
t\
mechanism box Q$ as illustrated apply type
~ I--- ~
cement to
make it so that the screw will not
@-
turn
when tightening with a nut.
: ~ ........ :
~ - _
& )peglue i
- 8 -

12
/
M3 x 12
Screw
Install so it will fit
32 Screw servo
onto servo
hole
and adjust plate
~ on
33
tion
M3 Washer
. _-- an
flush to the inner side . Front View
o o
Leave
between the
top of the
bo It.
m0 .1 nt TIl
installation
~
the opposite side.
Install another
t~~sher
servo
mount ~
onto adjust plate
~a using illustra-
~3 x
as reference.
Screw
x 5 Screw
Dri 11 hole
awl.
M3 Washer
a gap of about 1 mm
servo and the 3 x
15
Cap Bolt
35 Install throttle control saver installa-
tion shaft 8~ onto main chassis and
install linkage guide 65 to throttle
control saver ~ \ so it will move quite
freely then insert into shaft of ~ and
is tightened into place with M4 nylon
nut but
be careful not to tighten M4
nylon insert nut too much as the servo
saver should
move freely.
36 Install mechanism box QB to the main
chassis. Install switch for the
proportional system to the side of the
mechanism box ~ as illustrated.
34 Servo is installed onto mechanism box
@ make a hol e with an awl carefully
f0110wing the illustration.
- 9 -

[Slow
Keeping the servo horn and servo
saver
04 in neutral position,
insertlinkage rod ~ through the
holes as illutrated and stabilize
the rod into ~ linkage guide with
M3 hexagon nut.
slow position
[High Speed Position]
38 Keeping the throttle control servo in slow position, connect tilrott "l e control
servo saver linkage guide
e3 and servo horn with linkage rod 8B and stabilize
with hexagon screw M3. Next, connect engine throttle lever and servo saver @'
Each linkage rod are supplied in slightly longer length than necessary.
Therefore,
match the length and cut to required measurement .
_This shopper
is for
. -- adjusting the brake
® operation and \'ihen
• i moved to the ri ght
~ it works strono
This stopper
can remain / ,®, and ~veak in the
stabilized as it only acts to , ~ ) opposite direct.
measure the amount of movement . ,
~
of the other stopper. W @ ~ M3 Hexagon
~ Set this stopper so that
when the brake is released
the
lever is moved forward.
39 The brake horn eo and throttle control servo saver ~ is connected but first, keep
the throttle control servo in the slow position and connect as illustrated. In
case linkage rod ~ should hit against the engine, bend so that a smooth operation
can be obtained.
-10 -

x 8 Screw
Washer
41 Body Q~ is painted but before painting,
check if the chassis installation hole
and body installation holes meet and if
it should be out of line adjust by using
40 Install gear cover bracket 9j onto a
plier or other type of tools you have
gear cover
~ and then install onto
available. Also, before painting wash
side
member ~ matching so that it
off dirts or oils with neutral shop.
will not hit against any of the
Use fuel proof paints. (Engine color,
gears.
etc.)
42 Install body Q) onto chassis as illustrated. Joint collar $~ is used for the
rear part.
Top of front suspention
arm is marked "Land Jump"
M3
jtrew
x 6
') ~a is installed in a
;; @ slant as illustrated
©=*==© ©
[Top left view looking
[Top right view looking
at car from the rear]
at car from the rear]
- 11 -
[Small parts for step 43 - 50 are
included in front section (C) bag.]
43 Front spring bracket ~ is
installed onto the front
suspension arm Q.~ but as
illustrated it is installed
in a slight angle.
(Note)
The side marked "Land
Jump" is the top

[Left]
47 Insert swing shaft ~into joint 10 and
the other end
then install
@4l the front wheel
[Completed Drawing]
M3
Hexagon
Screw
[Top Right]
Left]
44 Making sure of top right and top left sides of the front suspension arm;tQat
was assembled in step ~), set the arms into place as illustrated. Set &QJ)
8~ stopper into place to the point that it does not have excess play and make
so that suspension arm will move up and down smoothly.
[Left]
Right is
the same
. / . §--~
1 --- /: I ~
[Left]
~ ~ Right is
assembled the
~~
same way.
45 King pin holder @is installed to
'16 Front hub tQ"V is assembled as illustrated
front suspension arm ~ but set
but if the king pin ~ is tightened too
M4 nylon nut int~ lace so that the
much, the front hub will not move. Set
.
king pin holder
QQ..2)will rotate
so that front hub ~ will move freely
lightly and also so that there will with9J!.t having too
much pl ay. Lock ki ng
be no side play. pin
QUYso that it will not loosen up by
applying cement, etc.
into front whee 1 s ha ft (]]j),
by setting into front hub
shaft bearing ~
- 12 -

M3
Nut
M3
Screw
x 12
48 Fi t ball 1ink qQ§) through M3
x 20 screw and
tighten firmly with M3 nut. Then insert the
end of M3 x 20 screw through servo saver (JV
and stabilize with M'3 nut.
Before connecting to
front hub ~~ adjust the
length
of the tie rod, set so that there will
be about 1° toe-in on the front tire and
install onto the ball 1ink d' 69). Use tie-rod
installation spacer \l )?> only-on the right side.
49 I~tall M3 . l8>JQ~5)onto oil damper shaft ends QJ
<ll7) and spri ng gu i de ([ 14) The method of
installation is to have the M3 nut screwed in
as far as it will gO,in and then screw in M3
shaft ends tWand :]1]) right to the end. When
tightened complete lock with M3 nut (lock nut)
so it will not loosen.
M3 x 25
Screw
Rubber Pipe
(Use fuel line by cutting
in about 5 mm length)
ThiS spring is for adjusting
/. ?t
!:, en9 _th of spri ng t~ns ion.
~ ~
W2jn ) '-+ --- ~ i . I '
Install M3 Nut
MOs£-b' ________ ' (Lock nut)
50 Assemble oil damper @, front spring @ so there will be no mistake as
illustrated.
- 13-

Screw
57
in
[
Pa rts for steps
are included
rear
pa rts
(B) bag.]
[Right]
51 Install rear ~ension spring installa-
~ bracket ~and rear damper bracket
CI1J)onto rear 'suspension arm @and @.
@l
Insert rear wheel shaft
into rear wheel shaft
bearing @ .
[Right]
I
[Ri ght] @
55 Install 8~ stopper @by pressing rear
suspension arm against the inner side to
the point
rear swing shaft ~ wtLl have
no side way play with QB joint, ~) rear
swing shaft @ rear wheel shaft in
parallel condition ~inustrated. Also,
install 8~ stopper~]) to supension arm
tightly so that there will be no excess
side play of rear suspension arm.
- 14 -
@
~~ ~ \
@) \ "'~~
[Right]
~ Assemble left the same
i way.
M3 x 5 Screw
52 mstall rear whee .l shaft bear~
onto rear suspension arm ~~
2 .
L-
~\ @
~~ - ~
, I /
@
[Ri ght] @ ,, ""-'1 I11 "" r 71'I
Q ~
54 Have 8~ stopper ~J)inser~onto
rear suspension arm axle ~ the
rear swing shaft @ i nto,6 of the
joint and as you insert into the
rear wheel shaft of @, insert
jn!o the rear suspension arm ax le
~ ;J at the same time.
[Right]
56 Install screw for damper and rear
spring installation as illustrated.

57 Install M3 shaft end Q26l
using assembly illustration
@ onto rear oil damper Q13>
& rear suspension spring
guide@and set into place
as
illustrated.
M
~se by cutting fuel line tube
in
5mm width.
M3
M3
M3
x 5
..I
~ Set so that this stopper will
",-Fuel 1i
ne
tube 5 mm
Nut
touch 5
mm before oil damper
I
5mm fuel line tobe
goes down to the lowest point.
' G~
1<)0 , \
~i ~C O+
:') 0 . ' \\ .. dJ. \. , . ~
',=, ~
~~ ( 1~
58 Fi rs t, insert inner wheel W into tire ([]4) (see
section drawing). Next, apply rubber
tYRe cement
lJRh~ onto cementing surface of tire <l1.~ wheel
ffi' . ./ C (f~, (3 4)
Q}!,
_ 0_6)
1) ZJ and press wheel UIDand after drying
i thoroughly, applying
thinner to the cement, quickly
M2 Nut
M2 Scre~ . L-
insert tire matching the installation hole of the
press
wheel @and wheels @-1.W, and tighten with
59 After checking the direction of oneway bearing set into the front wheel, install
as illustrated. Do not over-tighten M6 nylon nut on the front wheel side to
keep the tire rotating freely. Install rear wheel side matching the hexagon
protrusions so that it will be locked.
'l j5~13
M2 screw.
'-'
[Small parts in steps 58 - 64 are
included in
tire parts bag.]
Lock
Nut
Nut
- 15 -

60 Install front bumper 61 Place on top of
~~ to the main chassis.
mechanism box ~ lid
~ and doll ~ and
Awl
drill a hole on the
side of doll
arm for a 3mm
screw.
M4 Washer...
M4 Nut
M4 x 18' ~
Hexagon
Bolt
62 Paint sheet and doll 8l.l. l~ash with neutral
soap before
painting. After drying, paint
the inner side of the bod~ masking places
to be painted in different colors for lines,
etc. and finish by painting overall.
63 Place battery on the bottom,
receiver on top and by bending
piano wire as
illustrated install
antenna ~ onto the mechanism box.
64 Install M4 x 40 screw onto mechanism box
Q] as illus~rated, place doll ~ on top
of
lid Q9 sheet and stabilize with M3
nylon nut.
-
16 -
65 Method of starting Land Jump 4D is
performed in the same manner a
racing car
by revolving the flywheel
with
an electric starter from the
bottom of the
chassis.

Tighten
66 [Inspection of Chain]
Chain ~ will slacken to a certain extent during the so-called First stage
slackening
when it is still new . For the first 3-4 tank full of running keep
checking then amount of slackening on each tank full of running. The initial
slack is adjusted by moving tensioner shaft towards tightening direction. In
case adjustment cannot be made with ~, adjust by moving forward the front axleQ)
12 Z 53 Z 8.7
13 Z
52 Z 9.6
14 Z
51 Z 10.6
Other than
above
combination cannot be
matched.
67 [Changing Gear Ratio]
The gear ratio set on this car has a 9.6:1 ratio with spur gear {9 ~ Z and clutch
bell
~8 13 Z. This can be replaced with optional gears 8.7:1 and 10.6:1.
68 [Use Air Filter]
To protect engine from dirt, be sure to use air
filter on carburetor. Available as optional parts.
Clutch Bell
Su~er
Gear Gear Ratio
69 [Adjustment of torque clutch]
' ~
To adjust torque clutch@, it is adjusted by moving
Strong
....- weak
the torque clutch pin guide (Z)to the left or right
\
by running the car but if the car should spin, adjust
towards strong side and if it is under-steering,
weaken adjustment. The best setting point is to
adjust so that the car will just about run without
spinning but
this would depend on individual's
preference and also the race track condition so set
it up to your desired adjustment.
- 17 -

Rear ti re for
Nylon super spike
Front tire for
Super Spike
CIRCUIT can be
(Suitable
for regular
CIRCUIT can be
(Suitable
for running
used
dirt road)
used in deep sand)
70 [Setting of Tire]
Normal tire on this car uses same diameter same width stud tires for both front
and rear but for setting method, it is possible to change with "CIRCUIT SERIES"
tires. For example, normal for front and CIRCUIT rear tire for the rear.
Also, circuit front tire for the front (Note: In this case one way bearing
cannot
be used unless it is used in combination with "LAND JU~1P" front wheel
and press wheel for CIRCUIT front). Also, it is possible to use tires for
CIRCUIT on both front and rear. As Super Spike, Nylon Spikes, etc. are being
sold
for use CIRCUIT, a wide selection of tire setting is possible to match with
the track condition.
CB-10l
(Option) ®
[Appendix]
*The front and rear oil damper set included in the LAND JUMP 40 kit are for the
rear (CB-89) of CIRCUIT BUGGY SERIES. For those who prefer softer oil damper
it is possible tc use oil damper for front of CB-88.
*Front and rear wheel shaft bearing can be changed to CIRCUIT SERIES option
parts, CB-95, Wbearing.
*Spur gear
mount 62 axle holder inclilded in the kit is incorporated with bearing
Q~. When using ball bearing, CB-101 front wheel bearing can be used. First,
using illustration as reference, tit bearing ~ in within the thickness 0 ' the
ball bearing and set CB-10l bearing into place.
-
18 -

@
~
\ - @
I
\\
®
- 19 -