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Connect a fully charged glow starter to the top of the glow plug, making sure that the
glow starter is locked firmly onto the top of the glow plug. You don't want it to fall off
while you're trying to start the engine.
When the engine is new, it can sometimes be difficult to turn over using the pull-starter. You may find you need to pull the pull-starter
harder than you expect. A trick to help this is to loosen the glow plug slightly, start the engine, then remove the glow starter and
retighten the glow plug. This effectively lessens the engine's compression, making it easier to turn over with the pull-starter.
nEW EngInE STArTIng TIP
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With the throttle still in the idle position, hold the
X
ST 4WD Truggy RTR firmly with
one hand and carefully pull on the pull-starter cord, using short, quick pulls, until the
engine starts.
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Once the engine starts, release the pull-starter cord, allow the engine to run for about
10 seconds more, then remove the glow starter from the glow plug.
IMPORTANT:
If the engine does not start after a dozen pulls, refer to the trouble-
shooting guide on page 24.
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
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
stop. We suggest holding the
X
ST 4WD Truggy RTR firmly whilst doing this, so that it doesn't lurch out of your hands.
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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.
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 any moving parts.
BrEAKIng In AnD FInE-TUnIng THE XTM rACIng 24.7 nITrO EngInE
The XTM racing 24.7 nitro engine is an ABn 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 10~14% 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 10~14% oil content.
WARNING:
We do not recommend using fuels designed for R/C airplane 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.
