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❑
With the throttle still in the idle position, hold the X-Terminator 2 RTR 4WD Nitro
Buggy firmly with one hand and carefully pull on the pull-starter cord, using short, quick
pulls, until the engine starts.
❑
After the engine starts, release the pull-starter cord, allow the engine to run for about
0 seconds, then remove the glow starter from the glow plug.
iMPorTanT
If the engine does not start after a dozen pulls, refer to the troubleshooting
guide on page # 22.
❑
Once the engine is running, to stop the engine, carefully pinch the fuel line with your
fingers until the engine stops. Make sure to pinch the fuel pick-up line and not the fuel
pressure line. The fuel pick-up line is the one connected to the carburettor.
Pro TiP
When you pinch the fuel line to stop the engine, you must pinch it hard and hold
it. The engine will rev up quickly, then die. We suggest holding the X-Terminator 2 RTR
4WD Nitro Buggy while doing this, so that it doesn't lurch out of your hands.
Warning
Be careful not to touch any parts of the engine or the tuned pipe because they
will be hot. Also be careful to avoid moving parts.
Until you're actually ready to break in the engine, do not run the engine for more than a few minutes. If you run the engine longer without
breaking in the engine properly, damage to the engine can occur. Break-in will be done in the next section.
Warning aboUT rUnning yoUr EnginE for THE firST TiME
brEaKing in THE XTM raCing 24.7 niTro EnginE
The XTM Racing 24.7 engine is an ABC engine. The cylinder sleeve (liner) is tapered at the top, causing severe resistance when the
piston moves through the top of the stroke. This is normal. When the engine heats up to operating temperature, this resistance will
decrease and the proper clearance will be achieved. The break-in procedure will guide you through the steps necessary to properly
break in your new engine. Please follow the steps closely.
fUEL rECoMMEnDaTion:
For the break-in period you should use a fuel specifically designed for R/C car
engines that contains no more than 20% nitromethane and 0%~4% oil content.
Once the engine has been adequately broken in (about 45 minutes of run-time) you
can switch to an R/C car fuel containing up to, but no more than, 30% nitromethane and
0%~4% oil content.
Warning
We do not recommend using fuels designed for R/C aircraft engine
use. These fuels do not contain the proper amount of lubricants; therefore,
they will cause the engine to overheat or run erratically and severe damage
to the engine can result.
EnginE brEaK-in TiP
To make sure that you're not leaning
out the engine too m u c h a n d
overheating it during the break-in
process, we suggest using a temp gun to
monitor the engine's temperature.
During break-in, engine temperature
should not exceed 270ºf. The
optimum engine temperature is
210~230ºf. The minimum engine
temperature is 180ºf.
gLoW PLUg rECoMMEnDaTion:
The glow plug can make a big difference in how your engine performs. We recommend using a "medium" or "hot" heat-range
glow plug intended specifically for performance engines like the XTM Racing # 4 (P/N 146021 ) during the break-in process. After
the break-in period you may want to use a different heat-range glow plug. Use a colder glow plug like the SH Engines # 5 (P/N
47025) if you're using 30% nitro fuel. Do not use glow plugs intended for four stroke aircraft engines or glow plugs with an "idle
bar". Using the wrong type of glow plug will cause the engine to run erratically and make it difficult to tune properly. The wrong
type of glow plug could also damage the engine.
air fiLTEr:
The air filter is a very important part of your engine. Failure to use the air filter will damage the engine in a very short period
of time. Make sure that you use a prefilter sleeve (P/N 4942) if you are driving in dusty or wet conditions. See page #
for more information.
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Summary of Contents for XT2 Racer
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