MC-Apoteket
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Delekataloger
   Chang Jiang
   M-72
   BMW r-71
   Ural
   Dnepr
   K-750

Motorsykler
    Chang Jiang
     M1
      M1M
      M1M Super
    Russisk
      M-72
      K-750
      Ural
      Dnepr
    BMW
      R-71
      R-12
      R-75
      R-100RS

Historie
Chang Jiang

Fotoalbum

Kundebilder

Tennpluggtabell

Spesifikasjoner
    Chang Jiang
    Ural
    Dnepr
    BMW r-71
    BMW r-12

Presentasjon
    Vidar
   Børge
   Mr. Li
   Odd Grøndal

CJ Historie

Ural Illustrated

SPESIFIKASJONER FOR CHANG JIANG 750.
ALLE TRE MOTORALTERNATIVER !
Husk å skrolle helt ned på denne siden!

	M1	M1-M	M1-Super
ENGINE
76	746cc 4 stroke horizontally opposed	746cc 4 stroke horizontally opposed	746cc 4 stroke horizontally opposed
Head type	Flathead	Flathead	Overhead
Bore	78mm	78mm	78mm
Stroke	78mm	78mm	78mm
Max Power	22hp@4800 rpm	24hp@4800 rpm	32hp@5500 rpm
Compression	5.8:1	6.2:1	8.0:1
Sparkplugs	Torch 4114, Bosch W4AC	Torch 4114, Bosch W4AC	NGK BP5HS, Bosch W88, W8BC
Fuel	Regular, 87 octane BLY ! (Blyerstatning)	Regular, 87 octane BLY !(Blyerstatning)	Regular, 87 octane BLY!(Blyerstatning)
Engine Oil	ORGANIC 50W	ORGANIC 50W	ORGANIC 50W
Starting	Kick	Kick or electric	Kick or electric
Carburetor	24mm	24mm	28mm
CAPACITIES
Fuel Tank	5.5 gallons or 24 liters	5.5 gallons or 24 liters	5.5 gallons or 24 liters
Engine Oil	2.2 quarts	2.2 quarts	2.2 quarts
Transmission	26 oz.	26 oz.	26 oz.
Final Drive	5 oz.	5 oz.	5 oz.
Clutch	two plate dry	two plate dry	two plate dry
Gear Ratios
1st	3.6:1	3.6:1	3.6:1
2nd	2.29:1	2.29:1	2.29:1
3rd	1.71:1	1.71:1	1.71:1
4th	1.3:1	1.3:1	1.3:1
Drive method	Driveshaft and bevel gears	Driveshaft and bevel gears	Driveshaft and bevel gears
Final Drive	4.6:1 or 3.89:1(option, solo only)	4.6:1 or 3.89:1(option, solo only)	4.6:1 or 3.89:1(option, solo or sidecar)
Tire size	3.50/3.75x19	3.50/3.75x19	3.50/3.75x19
Tire pressure	Front, 28 lbs, rear 30-45 lbs	Front, 28 lbs, rear 30-45 lbs	Front, 28 lbs, rear 30-45 lbs
Battery	6V	12V, 28 amp hour	12V, 28 amp hour
Lights
Headlight	6006	6014 or 6024	6014 or 6024
Tail light		#1176	#1176
Turn signal		#1176 front, #1103 rear	#1176 front, #1103 rear
Dry Weight	770 lbs.	770 lbs.	770 lbs.
Payload	three adults and 200 lbs.	three adults and 200 lbs.	three adults and 200 lbs.
Top Speed	55 mph	55 mph, or 65 mph with 3.89:1 rear	55 mph, or 65 mph with 3.89:1 rear
Fuel Economy	40 mpg	40 mpg	35 mpg
Length	8 ft 4 inches	8 ft 4 inches	8 ft 4 inches
Width	5 ft 2 inches	5 ft 2 inches	5 ft 2 inches
Height	3 ft 5 inches	3 ft 5 inches	3 ft 5 inches
Wheelbase	5 ft	5 ft	5 ft
Track	3 ft 10 inches	3 ft 10 inches	3 ft 10 inches
Clearance	5.6 inches	5.6 inches	5.6 inches
Suspensison
Front	Telescopic forks	Telescopic forks	Telescopic forks
Rear	Plungers	Plungers	Plungers
Sidecar	Torsion bar and leaf springs	Torsion bar and leaf springs	Torsion bar and leaf springs
Stearing angle	25.5 degrees

Quick Reference Data

Gap settings

Exhaust valves gap	0.15 mm/0.00590 in.
Intake valves gap	0.10 mm/0.00393 in.
Points/Contacts gap	0.45-0.55 mm/ 0.0177-0.0216 in.
Spark plug gap	0.60 mm/ 0.0236 in.

Tire pressure

Front	22 psi (1.5 atmosphere)
Rear	36 psi (2.5 atmosphere)
Sidecar	22 psi (1.5 atmosphere)
Spare	36 psi (2.5 atmosphere)

Fluids/Lubricants

Engine	1.8 quarts/ 1.76 liters Mono Grade SAE 40 or SAE 50
Transmission	0.82 quarts/ 0.8 liters SAE 80 (winter) SAE 90 summer (all gear oil)
Final drive	0.175 quarts/ 0.17 liters SAE 90 gear oil
Forks	0.14 quarts/ 0.13 liters Hydraulic fork oil or SAE 40 to 50 engine oil.

MISC DATA

Clearance	140 mm (5.6")
Track	1170 mm (3' 10")
Wheelbase	1420 mm (5')
Height	1000 mm (3' 5")
Width	1500 mm (5' 2")
Length	2400 mm (8' 4")
Dry weight	340kg (770 lbs)

ENGINE

Volume	746 cc
Bore	78 mm
Stroke	78 mm
Compression	8:1
Fuel	24 l (5.5 gal.) Unleaded, 90 RON (Europe) / 87 PON (US)
Engine oil	2 l (2.2 qrt.) 20W50
Intake valve	0.10 mm (0.004")
Exhaust valve	0.15 mm (0.006")
Ign. Pnt. gap	0.4 - 0.45 mm (0.016" - 0.018")
Ign. timing	0.5 - 1.0 mm (0.02" - 0.04") before TDC
Carburator	28 mm (1.1")
Carb. Mainjet	0.93 mm (0.037")

DRIVE TRAIN

Transmission	740 g (26 oz) 20W50 or 80W90
Final Drive	140 g (5 oz) 20W50 or 80W90
Clutch	Dry, 2 Plate
Tire size	3.5/3.75 x 19

ELECTRIC

Voltage	M1: 6v, M1M/M1S: 12v

TORQUES

Cyl. Heads	29-33 Nm 21.4-24.4 ft.lbs
Flywheel screws	22-25 Nm 16-18.5 ft.lbs
Cylinder base	38-42 Nm 28-30 ft.lbs
Top shock abs. pinch bolt	21-30 Nm 16-22 ft.lbs
Bottom shock abs. pinch bolt	36-50 Nm 26.5-37 ft.lbs
Bearing nut	30-34 Nm 22-25 ft.lbs
Oil pump bolt	16-18 Nm 12-14 ft.lbs
Engine sump	8-10 Nm 6-7.5 ft.lbs
Final drive case nuts	14-18 Nm 10-13 ft.lbs
Pinion bearing nut	7-9 Nm 5-7 ft.lbs
Reverse gear lever	22-28 Nm 16-21 ft.lbs
Steering head nut	14-16 Nm 10-12 ft.lbs
Conversions	1 Nm = 0.738 ft.lbs, 1 ft.lbs = 1.35 Nm

For other toque settings, consider checking with Chilton's /2 Series BMW Manual published in 1973. It has more complete information, much of which is transferable.

MAINTENANCE SCHEDULE

The motorcycle should be lubricated according to this lubrication table. Standard lubes for the motorcycle are:

Engine Oil: 20w50 SG/SH
Calcium Grease (Cal. Grease) - Chassis lubrication items
Sodium-base grease - For engine lube items

Part	Qty	Action	Lube	Lubrication interval (KM)
				PDI	1	3	5
Alternator rear bearing	1	Lube	Calcium grease	*			*
Wheel bearing	6	Clean/grease	Calcium grease	*			*
Steering head bearing	2	Clean/grease	Calcium grease	*			*
Distributor felt	1	Lube	20W50	*		*	*
Clutch/Break cable	2	Lube	Calcium grease	*		*	*
Crankcase	1	Oil change	20W50	*	*	*	*
Gearbox	1	Oil change	80W90	*	*	*	*
Sidecar torque bar	1	Clean/Lube	Calcium grease	*		*	*
Sidecar univers. joint	1	Clean/Lube	Calcium grease	*		*	*
Sidecar spring plate	2	Clean/Lube	Calcium grease	*		*	*
Final Drive	1	Lube change	80W90	*	*	*	*
Brake camshaft	2	Clean/Lube	Calcium grease	*			*
Front fork oil (100 ml each)	2	Drain/Fill	ATF	*			*
Throttle twist grip	1	Clean/grease	Calcium grease	*			*
Air cleaner	1	Clean/Lube	20W50	*		*	*
Speedometer cable	1	Lube	Calcium grease	*			*
Foot brake linkage	1	Lube	Calcium grease	*			*

PDI = Pre Delivery Inspection
After 5000 km, service intervals are every 5000 km.