New Page 1

	ENGINE SYSTEM
	MOTOR
	MAGNETO
	CARBURETOR
	ROCKER
	BEARING
	SPEED GEAR
	SHIFT ROD
	CONNECTING ROD
	FUEL TANK
	TANK
	LOCK FUEL
	EXHAUST MUFFLER
	WHEEL ASSY
	ALUMINUM WHEEL
	WHEEL NET
	HUB
	BRAKE SLICE
	BREAK DISK
	CHAIN
	CHAIN COVER
	TIRE
	SPROCKET
	FRAME ASSY
	FRAME
	REAR FORK
	SHOE SET
	HANDRAIL
	ELECTRIC EQUIPMENT ASSY
	HEAD LAMPS
	REAR LAMPS
	TURNING LAMPS
	WIRING HARNESS
	METER
	HORN
	ANNUNCIATOR
	SPARK PLUG CAP
	STARTING MOTOR
	STARTERING RELAY
	SELENIUM RECTIFIER
	SWITCH IGNITION
	PORTFIRE
	SPARK COIL
	CAPACITOR
	FRONT FORK & SHOCK ABSORBER ASSY
	SHOCK ABSORBER
	UPPER&BOTTON BRACKET
	HANDLE SYSTEM ASSY
	HANDLE BAR
	HANDLE SWITCH
	CONTROL CABLES
	GRIP
	BACK VIEW MIRROR
	FENDER
	SEAT
	COVER PROTECTIONS
	AIR CLEANER
	BATTERY
	LOCKS
	LOCK
	CABLE LOCK
	OTHER PARTS & TOOLS
	JOINT
	STANDARD PARTS
	NON-STANDARD PARTS
	PLASTIC PARTS
	RUBBER PARTS
	REPAIR PACKET
	TOOLS

Home>>Parts>>Motor


XD156FMI	XD253FMM

	XD156FMI		XD156FMI(type F)		XD244FMI	XD1E156FMI	XD253FMI
Pattern	single cylinder 4-stroke gasoline engine air-cooling OHV		single cylinder 4-stroke gasoline engine air-cooling OHV		single cylinder 4-stroke gasoline engine air-cooling OHV	single cylinder 2-stroke gasoline engine air-cooling.	double cylinder 4-stroke gasoline engine air-cooling OHC
Bore and stroke	56.8×49.5		56.8×49.5		44×41	56×50	53×53
Displacement	124.1ml		124.1ml		124.1ml	123ml	233.8ml
Compression ratio	9.2:1		9.2:1		9.4:1	6.8:1	9.2:1
Maximum power/engine speed	7.5kw/8500±400r/min		7.5kw/8500±400r/min		8.0kw/10500±500r/min (CBT) 7.5kw/10500±500r/min(CM)	10.4kw/8000±400r/min	14kw/8500±400r/min
Calibration power/engine speed	6.6kw/7500±350r/min		6.6kw/7500±350r/min		7.5kw/10500±500r/min(CBT) 7.0kw/10500±500r/min(CM)	8.3kw/6800±400r/min(CM)	12kw/8000±400r/min(CM)
Maximum torque/engine speed	8.2N.m/7500±350r/min		8.2N.m/7500±350r/min		8.2N.m/9000±500r/min(CBT) 8.2N.m/9000±500r/min(CM)	12.7N.m/7200±300r/min	16N.m/7000±350r/min
Minimum specific fuel consumption	≤367g/kw.h		≤367g/kw.h		≤367g/kw.h	≤476g/kw.h	≤354g/kw.h
Idling	1500±100r/min		1500±100r/min		1500±100r/min	1450±100r/min	1300±100r/min
Ignition mode	CDI electric ignition		CDI electric ignition or contacted ignition		CDI electric ignition	CDI electric ignition	CDI electric ignition
Air intake mode	OHV		OHV		OHC	Piston-Reed valve	OHC
Lubrication mode	Pressure and splash-type lubrication		Pressure and splash-type lubrication		Pressure and splash-type lubrication	Double-way disengage lubrication	Pressure and splash-type lubrication
Spark-plug	D7		D7		A7TC	T4197J	A7TC
Clutch pattern	Multiple disc oil bath clutch		Multiple disc oil bath clutch		Multiple disc oil bath clutch	Multiple disc oil bath clutch	Multiple disc oil bath clutch
Carburetor	Variable venturi carburetor		Variable venturi carburetor		Same vacuum carburetor(CBT)Variable venturi carburetor(CM)	Variable venturi carburetor	Same vacuum carburetor
Staring-mode	Electric-starting. kick-starting		kick-starting		Electric-starting.	kick-starting	Electric-starting.
Shape size	350×329×450		350×329×450		385×380×412	468×362×365	417×402.5×418
Primary reduction	4.056(73/18)		4.056(73/18)		3.833(69/18)	3.895(74/19)	3.632(69/19)
	Four-speed	Five-speed	Four-speed	Five-speed	2.769(36/13)	2.833(34/12)	2.846(37/13)
Gear ratio 1st	2.769(36/13)	2.769(36/13)	2.769(36/13)	2.769(36/13)	2.769(36/13)	2.833(34/12)	2.846(37/13)
Gear ratio 2nt	1.722(31/18)	1.882(32/17)	1.722(31/18)	1.882(32/17)	1.882(32/17)	1.875(30/16)	1.778(32/18)
Gear ratio 3rd	1.272(28/22)	1.40(28/20)	1.272(28/22)	1.40(28/20)	1.450(29/20)	1.368(26/19)	1.333(28/21)
Gear ratio 4th	1.0(25/25)	1.130(26/23)	1.0(25/25)	1.130(26/23)	1.217(28/23)	1.091(24/22)	1.083(26/24)
Gear ratio 5th		0.96(24/25)			1.083(26/24)	0.917(22/24)	0.913(21/23)
Gear ratio	4.056	3.893	4.056	3.893	4.153	3.570	3.316