Kymco MO Super 950 Service Manual - chap 11 (raffreddamento)
11. COOLING SYSTEM
11-0
SUPER 9 50
11
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COOLING SYSTEM
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SERVICE INFORMATION -------------------------------------------- 11- 1
TROUBLESHOOTING ------------------------------------------------- 11- 1
RADIATOR -------------------------------------------------------------- 11- 3
WATER PUMP ---------------------------------------------------------- 11- 6
THERMOSENSOR ------------------------------------------------------ 11-12
THERMOSTAT---------------------------------------------------------- 11-13
11
11. COOLING SYSTEM
11-1
SUPER 9 50
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• The water pump must be serviced after removing the engine. Other cooling system service can be
done with the engine installed in the frame.
• The engine must be cool before servicing the cooling system.
When the coolant temperature is over 100℃ , never remove the radiator cap to release the
pressure because the boiling coolant may cause danger.
• Avoid spilling coolant on painted surfaces because the coolant will corrode the painted surfaces.
Wash off any spilled coolant with fresh water as soon as possible.
• After servicing the system, check for leaks with a cooling system tester.
SPECIAL TOOL
Mechanical seal driver
TORQUE VALUES
Water pump impeller 9.8_ 13.72N-m
Water pump cover bolt 7.84_ 11.76N-m
TROUBLESHOOTING
Engine temperature too high Coolant leaks
• Faulty temperature gauge or thermosensor • Faulty pump mechanical (water) seal
• Faulty radiator cap • Deteriorated O-rings
• Faulty thermostat • Damaged or deteriorated water hoses
• Insufficient coolant
• Passages blocked in hoses or water jacket
• Clogged radiator fins
• Passages blocked in radiator
• Faulty water pump
Temperature gauge pointer does not register
the correct coolant temperature
• Faulty temperature gauge or thermosensor
• Faulty thermostat
11. COOLING SYSTEM
11-2
SUPER 9 50
SPECIFICATIONS
Begins to open
80±2℃
Thermostat temperature
Full-open
90℃
Valve lift
3.5_ 4.5mm
Coolant capacity
Total system 1165cc
Radiator: 825cc
Reserve tank: 340cc
COOLANT GRAVITY
Temp. ℃
Coolant
concentration
05101520253035404550
5%
1.009
1.009
1.008
1.008
1.007
1.006
1.005
1.003
1.001
0.009
0.997
10%
1.018
1.107
1.017
1.016
1.015
1.014
0.013
1.011
1.009
1.007
1.005
15%
1.028
1.027
1.026
1.025
1.024
1.022
1.020
1.018
1.016
1.014
1.012
20%
1.036
1.035
1.034
1.033
1.031
1.029
1.027
1.025
1.023
1.021
1.019
25%
1.045
1.044
1.043
1.042
1.040
1.038
1.036
1.034
1.031
1.028
1.025
30%
1.053
1.051
1.051
1.049
1.047
1.045
1.043
1.041
1.038
1.035
1.032
35%
1.063
1.062
1.060
1.058
1.056
1.054
1.052
1.049
1.046
1.043
1.040
40%
1.072
1.070
1.068
1.066
1.064
1.062
1.059
1.056
1.053
1.050
1.047
45%
1.080
1.078
1.076
1.074
1.072
1.069
1.056
1.063
1.062
1.057
1.054
50%
1.086
1.084
1.082
1.080
1.077
1.074
1.071
1.068
1.065
1.062
1.059
55%
1.095
1.093
1.091
1.088
1.085
1.082
1.079
1.076
1.073
1.070
1.067
60%
1.100
1.098
1.095
1.092
1.089
1.086
1.083
1.080
1.077
1.074
1.071
COOLANT MIXTURE (WITH ANTI-RUST AND ANTI-FREEZING EFFECTS)
Freezing Point
Mixing Rate
KYMCO SIGMA Coolant Concentrate
Distilled Water
-9℃
20%
-15℃
30%
360cc
825cc
-25℃
40%
-37℃
50%
-44.5℃
55%
Cautions for Using Coolant:
• Use coolant of specified mixing rate. (The
mixing rate of 360cc KYMCO SIGMA
coolant concentrate + 825cc distilled
water is 30%.)
• Do not mix coolant concentrate of
different brands.
• Do not drink the coolant which is
poisonous.
• The freezing point of coolant mixture shall
be 5℃ lower than the freezing point of
the riding area.
11. COOLING SYSTEM
11-3
SUPER 9 50
RADIATOR
RADIATOR INSPECTION
Remove the front upper cover. (!2-3)
Remove the front lower cover. (!2-3)
Inspect the radiator soldered joints and
seams for leaks.
Blow dirt out from between core fins with
compressed air. If insects, etc., are clogging
the radiator, wash them off.
Carefully straighten any bent fins.
RADIATOR REMOVAL
Drain the coolant. (!3-10)
Loosen the hose band and disconnect the
upper and lower hose from connect the
radiator and reserve tank.
Upper Hose
Reserve Tank
Front Upper Cover
Front Lower Cover
Radiator
Lower Hose
11. COOLING SYSTEM
11-4
SUPER 9 50
Loosen the hose band and disconnect the
upper hose from the radiator.
Loosen the hose band and disconnect the
lower hose from the radiator.
Remove the two bolts and the radiator.
Radiator
Upper Hose
Lower Hose
Radiator
Bolts
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