Traxxas Nitro Stampede 41094, Operating Instructions Manual

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STEP 7:
Remove the 3x23mm cap-head machine screws that fasten the header to the engine. Carefully remove the header to avoid damaging the gasket. To separate the engine from the engine mount, remove the four 3x8mm cap-head machine screws.
Rebuilding the Engine STEP 1: Remove the 4mm locknut from the front pipe hanger. Pull the pipe from the rear exhaust header.
STEP 2: Unplug
the blue wire
from the
glow plug. Remove
the
fuel line from the carburetor inlet and from the exhaust header pressure fitting. Disconnect the red and black wires from the EZ-Start
®
motor.
STEP 3: Remove the EZ-Start gearbox by removing the three 3x8mm round-head machine screws.
STEP 4:
Use a 2.5mm hex driver to remove the yellow ground wire from the engine mount. Move the EZ-Start
wiring
harness out of the way.
STEP 5: Use a 2.5mm hex driver to remove the three remaining 3x10mm cap-head machine screws from the engine mount.
STEP 6: Pull the engine from the chassis. Turn the engine so that the throttle linkage to the carburetor will come out.
Changing the piston and sleeve assembly STEP 9:
Use a 5/16-inch nut driver to remove the glow
plug and copper gasket.
STEP 10: Use a 2.5mm Allen wrench to remove the four 3x12mm cap-head screws that fasten the cylinder head. Rock the cylinder head gently from side
to side
to release
it
from the sleeve. Note the thin aluminum head gaskets. We recommend that you replace these gaskets with new ones upon reassembly.
STEP 11:
Remove the backplate and the starter shaft. Replace the backplate gasket with a new one during assembly.
STEP 12: The piston and sleeve are a matched set. When the piston and sleeve are disassembled, they must be reassembled in the same orientation. Use a hobby knife to scratch a mark to indicate the location of the piston in relation to the pinning of the sleeve.
STEP 8:
Removing the carburetor is not necessary to rebuild the engine, unless you intend to replace the internal bearings
of
the
engine.
Remove
the
carburetor
by
loosening the 3mm locknut and pulling the carburetor straight up.