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Power
Transmission and Technology Menu
After the exhaust valve is on its seat (53°
ATDC), the temperature and
pressure begin to rise in
nearly the same fashion as in the four-stroke engine. Figure 23
illustrates the compression
in a 2-stroke engine. At 23° BTDC
the injector cam begins to lift the injector
follower and pushrod. Fuel injection continues until 6°
BTDC (17 total degrees
of injection), as illustrated in
Figure 24.

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