HPI Racing F3.5 Bedienungsanleitung Seite 3

Keeping it Running
3
Tip
Usea Rag
Use a rag to cover the exhaust tip. This will
stop the engine. Be careful! The exhaust
exremely hot so be sure to use a thick rag.
1/2 Throttle Driving
3
1/2 Throttle
3
Tuning After Break In
Imponant! Readthis secäoncarefully!Failureto followthesetuningstepscould resultin damagetheengineandvoid warranty!
Tuning for Optimum Performance
High Speed Needle
Step 4
Step
Use a screwdriver
to adjust the high
speed needle.
Fuel Mixture Tuning Tip
Engine temperature will help determine
engine is running lean or rich.
Attention
VAdjust c arburetor tokeep the
operating temperature below
2500F.
74151
HPI Racing Temp Gun
HPI
Tum on the transmitter and receiver, re-fill the fuel tank and follow the starting procedures in steps 1-4. Mth
off the ground, use the radio to slowly increase the throttle until it reaches full speed, then release. This will help
clean the excess
"cleaned out" to prevent it from stalling.
is
Place the vehicle on the ground
ransmitter sothe vehicle does n ot m ove. Drive the vehicle ina20 foot (6m) oval whæegngthe throttle (below
1/2 throttle).
process for a total of two tanks of fuel.
step
Caution
21/2turn
2 turn MAX
iii
clockwise from flush.
if the
Engine Temperature
Danger
2500F
(12000
2300F
(1 looc)
2100F
(990C)
1900F
(900c)
oil out of the engine. Because
Pinch the Fuel Line
In extreme cases or emergencies
the fuel line to stop the flow of fuel to the carh
The vehicle should not move when idling. If it does, adjust the Mm setting on the
Coast for a short period of ime to allow the engine to cool, then
Tum the high speed needle clockwise in 1/8 tum
increments to lean out the fuel mixture. This will increase
top speed and throttleresponse. Drive the model to get
thefeelfor changesin speedand throttleresponse.
Continue Tuning:
Continue leaning the carb in Clockwise
tum increments.
(Maximum of 2 112turns from flush.)
v
STOP Tuning:
Stop tuning and go to
engine shows any of the follow signs.
(Engine is running too lean.)
* At full frottle, there is no smoke emitted
from the exaust
* The engine hesitates or bogs.
* Reduced top speed and loss of power.
* Overheating
Temperatures above 2500C (1200F)
at the glow plug.
If your engine is running lean, tum the needle
counter clockwise 1/4 tum to richen
mixture and repeat
Fuel Mixture Tuning
e Less Fuel = Lean
z—FJlÆBöStÄD
Safe Range
More Rich
Break in
3
of the rich break-in setüngs, the motor needs
you can pinch
1/8
if your
the fuel
e Less Fuel = Lean
Lean Fuel Mixture
Provi±s strong and emcient combustion
but i fyou lean o ut t oo much t he result isless I —a:
=
üon, more engine heat and shorter engine life.
More Fuel = Rich
Rich Fuel Mixture
A slightly rich fuel mixture delivers a cooler runnin
temperature and more lubrication but with sli
less power and longer engine life.
tires
to periodically be
again. Conänue this
and