The Zongshen RX3 employs Delphi Multec Electronic Fuel Injection, which is documented at the Delphi website.
http://www.delphi.com/manufacturers/...wertrain/small
http://www.delphi.com/docs/default-s...f.pdf?sfvrsn=0
Single cylinder motorcycles, such as the Zongshen RX3, employ a system using the MT05 engine control module (ECM).
http://www.delphi.com/manufacturers/...owertrain/mt05
http://www.delphi.com/docs/default-s...f.pdf?sfvrsn=0
This ECM receives information from a number of sensors.
Zongshen provides the crank sensor, which is located inside the Zongshen NC250 engine.
The engine temperature sensor measures coolant temperature, and is located in the thrermostat housing under the fuel tank.
The oxygen sensor is attached to a bung on the exhaust header.
http://www.delphi.com/manufacturers/...in/mini_swh_ox
http://www.delphi.com/docs/default-s...f.pdf?sfvrsn=0
The manifold absolute pressure (MAP) sensor, manifold air temperature (MAT) sensor, and fuel injector are attached to the intake manifold.
The throttle position sensor is incorporated in the Delphi throttle body.
http://www.delphi.com/manufacturers/...rain/etc_tb_sm
http://www.delphi.com/docs/default-s...f.pdf?sfvrsn=0
A fuel pump, which provides pressurized fuel to the fuel injector, is located inside the fuel tank.
http://www.delphi.com/manufacturers/...rain/sm_eng_fm
http://www.delphi.com/docs/default-s...f.pdf?sfvrsn=0
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Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894