HPI Racing K 4.6 Big Block engine Bedienungsanleitung Seite 3

Keepin
it runnin
SLOWL Y
LANGSAM
LENTEMENT
Tip
Stopping the Motor
There are two ways to stop the motor.
1) use a Rag.
Use a rag to cover the exhaust tip. This will
stop the motor. Be careful! The exahust is
extremely hot so be sure to use a thick rag.
1/2 throttle drivin
1/2 Throttle
Halbgas
Moins de la moitié
du plein régime
3
Tuning After Break-in
Important!
Read this section carefully:
Tuning for Optimum Performance
Step
High Speed Needle
'y-51
1/8
te
p
Caution
2 1/2 turn MAX
clockwise from flush.
Fuel Mixture Tuning Tip!
Following the tuning steps above, tune the engine until it's maximum performance is reached. While a lean
motor will have higher performance, it can lead to premature engine wear or faliure. Use the following
information to tune your engine to your driving coinditions. Remember a slightly rich setting is a safer setting.
More fuel = RICH
Rich Fuel Mixture
A Slighly r ichfuelmixture delivers a coolere
running temperature and more lubrication
but with slightly less power and longer
engine life.
Turn on the transmitter
the ground, use the radio to slowly increase the throttle until it reaches full speed, then release. This will help clean the
excess oil out of the engine. Because of the rich break-in settings, the motor needs to periodcally be "cleaned out" to
prevent it from stalling.
Place the vehicle on the ground. The vehicle should not move when idling. If it does, adjust the trim setting on the
transmitter so the vehicle does not move. Drive the vehicle in a 20 foot (6m) oval applying throttle (below 1/2 throttle),
coast for a short period of time to allow the engine to cool, then accelerate again. Continue
of two tanks
Failure to follow these tuning steps
tep
p
Flush with Groove.
Less
Lean Fuel
Provides strong more efficient combustion
and power, but if you lean out to much the
result is less lubrication, more engine heat
and a shorter engine life.
and receiver, re-flll the fuel tank and follow the starting procedures
2) Pinch the Fuel Line.
In extreme cases or emergencies
the fuel line to stop the flow of fuel to the carb.
Be careful, this can make the motor run lean
which can damage the motor. It is best to stop
the motor using a rag.
of fuel.
25>55-3.
could result in damage your engine,
Turn the high speed needle clockwise in
1/8 turn increments to lean
mixture for increased top speed and throttle
performance. Drive the car to notice
changes in speed and throttle response.
Continue Tuning:
Continue leaning the carb in Clockwise
1/8 turn increments.
(Maximum of 2 1/2 turns from flush.)
STOP Tuning:
Stop tuning andgoto STEPX ifyour
engine shows any of the follow signs*
(Engine is running too lean.)
* At full throttle, there is no white smoke
from the exhaust.
* The engine hesitates or bogs.
* Reduced top speed and loss Ofpower.
* Overheating
Temperatures above 275 F (135 C)
at the glow plug.
TEP X
If your engine is running lean, turn the
needle counter clockwise
richen the fuel mixture and repeat
We recommend
a temperature
measure engine temps.
If the engine
temperature
275F (135C), follow
fuel = LEAN
gxee:x] above.
Mixture
3/16
you can pinch
*X-afiLU9Mä1)
and void your warranty
out the fuel
nx-c2 1
1/4 turn to
Fuel Mixture Tuning
Less fuel=LEAN
using
gun to
exceeds
Safe Range
35
More fuel=RlCH
in steps 1-5. With the tires off
this process for a total
!
-ZUC
Engine Temperature
DANGER
2750F
(1350C)
2300F
(1100C)
2100F
(990C)
1900F
(900C)
Break-In
70—04