OFNA Racing Ultra MBX Pro - Manual (Page 4)

A B
C
CHECKING ENGINE THROTTLE
* Insert into transmitter.
1. Insert AA batteries into
transmitter (8 Pcs).
2.Turn on transmitter.
3.Turn on receiver.
4.Center throttle trims as
shown .
A B C
1. Pull Full Throttle. 1. Push trigger to full
brake position.
2. Adjust alum. Stopper to
increase or decrease
the brake.
Idle Position (A)
Brake (C)
Full Throttle (B)
* Align throttle servo same
as shown.
ASSEMBLY OF THE THROTTLE LINKAGE SYSTEM
3X3mm
Set Screw 3X3mm
Set Screw
3X3mm
Set Screw
Plastic Collar
* Take the plastic collar
from brake system plastic
parts.
Throttle
Spring
#10300
Alum.Stopper
#10300
Alum.Stopper
* Snap On.
#30530
Plastic Throttle
Ball Joint
2mm Rod
Fuel
Tube
( 6mm )
Idle Position
Brake
Full Throttle
* Align throttle servo same
as shown.
A
B
C
• Full brake arm position.
Spring compresses
forward and brake rods
pull brake levers.
• Full throttle arm position.
Spring rod pulls throttle
barrel open and brake
rods release pressure on
brake cams.
IMPORTANT
CHECK RADIO THROTTLE
AND STEERING SWITCHES
BEFORE RUNNING CAR
#30800
Plastic Throttle
kit
Note:
Battery life is short when using Alkaline batteries. For safety, we recommend using
Alkaline batteries for only 30 minutes before testing; mostly changing. Battery strength
affects braking power and radio range. If voltage drops while running the car, you will
loose control and destroy your car! This is NOT covered under warranty.
To increase run time, upgrade receiver battery to a 5-cell hump pack. Also, install a
battery fail safe (OFNA # 91002) to further protect your car. But, the most important step
you can make, “is to always use fully charged or fresh batteries when running your car”.