Page 56 of 99

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 8. Start the engine and warm up for a
few minutes. While warming up,
check for oil leakage. If oil leakage
is found, stop the engine immedi-
ately and check for the cause.
9. Stop the engine and check the oil
level.
EAU03024*
Cooling system1. Check the coolant level in the
coolant reservoir when the engine
is cold as the coolant level will vary
with engine temperature. The
coolant level should be between
the maximum and minimum
marks.
2. If the level is low, remove the seat.
(See page 3-12 for seat removal
and installation procedures.)
3. Remove the coolant reservoir cap,
then add coolant or distilled water
to raise it to the specified level.4. Install the coolant reservoir cap
and seat.
ECA00041
CAUTION:@ Hard water or salt water is harmful
to the engine. You may use soft wa-
ter if you can’t get distilled water. @
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1. Coolant reservoir capCoolant reservoir capacity:
0.3 L
E_4tx_Periodic.fm Page 10 Saturday, October 16, 1999 9:37 AM
Page 89 of 99

8-1
8
EAU01038
8-SPECIFICATIONSSpecifications
Model TDM850
Dimensions
Overall length 2,165 mm
(for GB, NL, B, F, E, P, I, GR, D,
DK)
2,200 mm (for N, S, SF)
Overall width 790 mm
Overall height 1,285 mm
Seat height 805 mm
Wheelbase 1,475 mm
Ground clearance 165 mm
Minimum turning radius 2,900 mm
Basic weight (with oil and full
fuel tank)
232 kg
Engine
Engine type Liquid cooled 4-stroke, DOHC
Cylinder arrangement Forward inclined parallel
2-cylinder
Displacement 849 cm
3
Bore ´ Stroke 89.5 ´ 67.5 mm
Compression ratio 10.5:1
Starting system Electric starter
Lubrication system Dry sumpEngine oil
Ty p e
Recommended engine oil
classification API Service SE, SF, SG type or
higher
Quantity
Periodic oil change 3.5 L
With oil filter replacement 3.6 L
Total amount 4.2 L
Cooling system capacity
(total amount)
1.7 L
-20˚ -10˚ 0˚
10˚20˚ 30˚
40˚50˚C
SAE 10W/30
SAE 15W/40SAE 20W/40SAE 20W/50
SAE 10W/40
CAUTION:Be sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled
“Energy Conserving”) contain anti-friction additives which
will cause clutch and/or starter clutch slippage, resulting in
reduced component life and poor engine performance.
E_4tx_Spec.fm Page 1 Saturday, October 16, 1999 9:38 AM
Page 91 of 99

SPECIFICATIONS
8-3
8
Maximum load* 203 kg
Air pressure (cold tire)
Up to 90 kg load*
Front 225 kPa (2.25 kg/cm
2, 2.25 bar)
Rear 275 kPa (2.75 kg/cm2, 2.75 bar)
90 kg load ~ maximum
load*
Front 225 kPa (2.25 kg/cm2, 2.25 bar)
Rear 275 kPa (2.75 kg/cm2, 2.75 bar)
High speed riding
Front 225 kPa (2.25 kg/cm2, 2.25 bar)
Rear 275 kPa (2.75 kg/cm2, 2.75 bar)
* Load is total weight of cargo, rider, passenger and accessories.
Wheels
Front
Ty p e C a s t
Size 18 ´ MT3.00
Rear
Ty p e C a s t
Size 17 ´ MT4.00
Brakes
Front
Type Dual disc brake
Operation Right hand operation
Fluid DOT 4Rear
Type Single disc brake
Operation Right foot operation
Fluid DOT 4
Suspension
Front
Ty p e Te l e s c o p i c f o r k
Rear
Type Swingarm
Shock absorber
Front Coil spring / oil damper
Rear Coil spring / gas-oil damper
Wheel travel
Front 149 mm
Rear 144 mm
Electrical system
Ignition system T.C.I. (digital)
Charging system
Type A.C. magneto
Standard output 14 V, 23.5 A @ 5,000 r/min
Battery
Type GT12B-4
Voltage, capacity 12 V, 10 AH
Headlight typeQuartz bulb (halogen)
E_4tx_Spec.fm Page 3 Saturday, October 16, 1999 9:38 AM