XTM Racing 457 PRO User Manual

XTM RACING 457 PRO 6-PORT REAR EXHAUST ENGINE
6-PORT REAR EXHAUST
ENGINE WITH
TWO-NEEDLE SLIDE
CARBURETOR, SG-STYLE
CRANKSHAFT AND
PULL-START
INTRODUCTION
Thank you for choosing the XTM Racing 457 Pro 6-Port Rear Exhaust
engine. All XTM Racing engines are designed for high power output
and easy handling. The 457 Pro 6-Port Rear Exhaust engine features
a dual ball bearing-supported SG-style crankshaft, true ABC piston
and sleeve, two-needle slide carburetor, heat-dissipating cylinder
head, pull-start assembly and superb attention to detail and quality.
All XTM Racing engines are manufactured using CNC manufacturing
equipment to ensure every engine is produced to the exacting quality
that you have come to expect from an engine of this caliber.
BECOMING FAMILIAR WITH YOUR ENGINE
Please read through this instruction sheet in its entirety to familiarize
yourself with the features and operation of your new XTM Racing
457 Pro 6-Port Rear Exhaust engine.
Start by using the photo below to familiarize yourself with the major
components of your new engine.
Due to running manufacturing changes and improvements,
your engine may differ slightly from that shown.
Should you encounter any problems with your engine, we have
included a separate troubleshooting guide with these instructions
to help you solve them.
Displacement ..................................... 4.57cc
Bore: ................................................... 18.5mm
Stroke: ................................................ 17mm
Top RPM: ........................................... 33,000rpm
Power: ................................................ 3.8hp
Weight: ............................................... 425g
CAUTION - PLEASE READ!!
XTM Racing engines will consistently give you dependable
performance and reliability and will be a source of satisfaction and
pleasure if you follow these instructions as to the engine's proper
and safe use. You alone are responsible for the safe operation of
your engine, so act sensibly and with care at all times. This engine
is not a toy. It is a precision-built machine whose power is capable
of causing serious injury to yourself and others if abused, misused
or if you fail to observe proper safety precautions while using it.
Never use any fuel in your engine other than glow fuels
specifically designed for use in model car/buggy engines. Use of
any other types of fuel can cause severe damage to the engine and/or
personal injury. NEVER USE GASOLINE OR DIESEL FUEL!
Never operate your model on any public streets. This could
cause traffic accidents, personal injury or property damage.
Glow fuel engines emit exhaust vapors that are poisonous and
can be dangerous to your health. It is important that you operate
your engine in a very well-ventilated area, preferably outdoors.
Before starting the engine, make sure that the throttle trim is set
to the idle position. Starting the engine at any setting above idle can
cause the model to lurch out of your hands.
When the engine is running, there are certain parts that rotate
at high speeds. Be careful not to touch the drive shafts, gears, clutch
assembly or any other moving parts. Serious injury could result.
It is normal for the engine to get very hot during operation,
especially the cylinder head exhaust system. Never touch the
engine or exhaust system while they are hot.
Model car engines duce vibration when they are running. It is
important to periodically check the engine mounting screws, exhaust
mounting screws and other assemblies to ensure they are tight.
Running the engine with the engine mounting screws loose can
lead to severe engine and/or chassis damage.
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ENGINE SPECIFICATIONS