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Braking neutral engine at idle full throttle, Parts used – OFNA Racing OB4 RTR User Manual

Page 29

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BRAKING

NEUTRAL
ENGINE AT IDLE

FULL THROTTLE

* Full brake, stopper pushing on brake lever and throttle
still in idle with spring movement.

* Neutral position, throttle is idle and
no pressure on brake lever.

* Full throttle, pulling throttle open.

Note brake rod movement.

Brake is not on

Brake is not on

Alum
Stopper

10300

39421
Brake Lever

3x3mm
Set Screw

Slider
Carburetor

* Use the screw provid
with your radio.

* Insert into servo
horn.

CHECKING ENGINE THROTTLE FOR SLIDE CARBURETOR

45

45

Brake is on

Slider

ASSEMBLY OF THE THROTTLE LINKAGE

( For slide carburetor.) (Step 2)

ASSEMBLY OF THE THROTTLE LINKAGE

PARTS USED

3 x 3mm
Set Screw x2

2.6mm Nut x1

Alum Stopper x3

10300

* Servo horn comes with radio.

* Take the 2mm washer
from the shock plastic Parts.

* Remove the shaded area from
your throttle servo horn.

44

44

( For slide carburetor.) (Step 1.)

Throttle Guide

2 x 2.6mm
Nut

2x10mm
Screw

¾

T

½

ь

А

Й

Alum
Stopper

10300

Alum
Stopper

10300

3 x 3mm
Set Screw

3 x 3mm
Set Screw

Throttle Spring

30171

Throttle Rod

30530
Throttle
Ball Joint

* Snap throttle ball joint
onto carburetor.

• Turn carb linkage ball to better
accept linkage.

* Use the screw provided
with your radio.

HN

HN

3x3mm
Set Screw

ASSEMBLY OF THE BRAKE LEVER

42

42

CHECKING ENGINE THROTTLE FOR ROTARY CARBURETOR

A = Idle Position
A'= Full Throttle Position

* Keep A and A' at the same angle.

A A'

43

43

BRAKING

NEUTRAL
ENGINE AT IDLE

FULL THROTTLE

Brake is on

* Full brake, stopper pushing on brake lever and throttle
still in idle with spring movement.

Brake is off

* Neutral position, throttle is idle and
no pressure on brake lever.

Brake is off

* Full throttle, pulling throttle open.
Note brake rod movement.

* Align the servo horn and servo lever to 90 degree.

* Keep 2mm distance between
alum. stopper and brake lever.