System Testing - Honda CBR125R Owner's Manual

SYSTEM TESTING

COOLANT (HYDROMETER TEST)
Remove the inner cowl (page 2-7).
Remove the screw and radiator cap.
Test the coolant gravity using a hydrometer (see
below for "COOLANT GRAVITY CHART").
Look for contamination and replace the coolant if
necessary.
After checking the gravity, install the radiator cap
and screw securely.
Install the inner cowl (page 2-7).
COOLANT GRAVITY CHART
0 5
(32) (41)
5 1.009 1.009 1.008 1.008 1.007 1.006 1.005 1.003
10 1.018 1.017
15 1.028 1.027
20 1.036 1.035
25 1.045 1.044
30 1.053 1.052
35 1.063 1.062
40 1.072 1.070
45 1.080 1.078
50 1.086 1.084
55 1.095 1.093
60 1.100 1.098
RADIATOR CAP
Coolant temperature °C (°F)
10 15 20 25
(50) (59) (68) (77)
1.017 1.016 1.015 1.014
1.026 1.025 1.024 1.022
1.034 1.033 1.031 1.029
1.043 1.042 1.040 1.038
1.051 1.049 1.047 1.045
1.060 1.058 1.056 1.054
1.068 1.066 1.064 1.062
1.076 1.074 1.072 1.069
1.082 1.080 1.077 1.074
1.091 1.088 1.085 1.082
1.095 1.092 1.089 1.086
COOLING SYSTEM
SCREW
HYDROMETER
30 35 40 45
(86) (95) (104) (113)
1.001 0.999 0.997
1.013 1.011 1.009 1.007 1.005
1.020 1.018 1.016 1.014
1.027 1.025 1.023 1.021
1.036 1.034 1.031 1.028
1.043 1.041 1.038 1.035
1.052 1.049 1.046 1.043
1.059 1.056 1.053 1.050
1.066 1.063 1.060 1.057
1.071 1.068 1.065 1.062
1.079 1.076 1.073 1.070
1.083 1.080 1.077 1.074
50
(122)
1.012
1.019
1.025
1.032
1.040
1.047
1.054
1.059
1.067
1.071
6-5