Honda CB100 CL100 SL100 CB125S CD125S SL125 (1970) [52/101] Shoo sl125 attach the headlight case stay between the fork top bridge and steering stem and install the front fork as a unit tighten the front fork mounting bolts

The work should be performed with special tools for better results 5 all nuts and bolts are normally torqued starting from those of large diameter and from 5

Special tools 6

Il maintenance operations 9

120 and then install the cylinder 21

Assemble the piston ring on the piston note the ring marking located adjacent to the ring gap should be toward the top fig 41 21

C reassembly 21

Insert the piston ring into the cylinder so that it is normal to the cylinder axis and then measure the ring gap using a thickness gauge fig 40 21

Install the piston fig 42 note install the piston so that the in marking on the piston head is toward the rear replace all piston pin clips with new items 3 space the piston ring gaps equally apart 21

Measure the piston at the skirt fig 39 21

Measure the piston ring side clearance 21

Note do not forget to install the two dowel pins in the mounting base 21

Piston diameter inspection 21

Piston ring gap 21

Replace if beyond the serviceable limit 21

Using a thickness gauge replace the piston ring or piston if beyond the serviceable limit 21

When installing new piston rings roll the rings over their respective piston ring grooves to make sure that the ring side clearances are adequate rings should roll smoothly 21

Ance with paragraph 3 c 25

And perform the reassembly in the reverse order of diassembly 25

C reassembly 25

Clean all parts with solvent or kerosene 25

Finally lap the valve into the seat using a fine valve grinding compound a uniform lap ring on the face of the valve indicates a good seating 25

If there is uneven contact the valve seat should be cut by first using the valve seat interior cutter followed by the top cutter and then finished with the 90 seat cutter 25

Reassemble the cylinder head in accord 25

Valve lapping 25

Valve spring 25

Carburetor setting table 40

Iv chassis 41

140cc 4 4 ozs 51

Assemble piston stopper and piston on 51

Attach the front fork upper and lower covers or fork boots and install the front fork as a unit tighten the front fork bolt 51

C inspection 51

Case for bend or crank if badly damaged replace with new one 51

Cb100 cl100 cb125s cd125s 51

Check the front fork oil seal for damage 51

Check the front fork pipe and bottom 51

D reassembly 51

Fill front fork bottom case with sae 51

Front fork spring fig 132 51

If damaged replace with new one 51

Insert the front fork pipe assembly into the bottom case install the oil seal and circlip and assemble the front fork spring into the fork pipe so that the end with the large pitch is at the bottom fig 134 sl100 sl125 place the large pitch end of the front fork spring into the bottom case insert the front fork pipe and assemble the oil seal and circlip 51

Replace if beyond the serviceable limit 51

Sl100 sl125 180 190cc 6 6 ozs 51

The front fork pipe 51

W 30 cb100 cl100 cb125s cd125s 51

Wear of front fork piston 51

A disassembly 52

Cb100 cl100 cb125s cd125s 52

Fig 136 cb100 cl100 cb125s cd125s sl100 sl125 52

Fig 137 rear shock absorber disassembly 52

Install the headlight case 52

Metal and then separate the spring and upper case fig 137 52

Mounting cap nuts and remove the shock absorber from the frame and r ar fork 52

Rear suspension 52

Remove the chain case 5 loosen the rear fork pivot nut extract 52

Remove the cotter pin and nut and then 52

Remove the rear brake stopper arm from the rear fork 52

Remove the rear shock absorber bottom 52

Remove the rear wheel in accordance with 52

Section 2 a 52

Shoo sl125 attach the headlight case stay between the fork top bridge and steering stem and install the front fork as a unit tighten the front fork mounting bolts 52

Sl100 sl125 52

The rear fork pivot bolt and then remove the rear fork 52

Unscrew the two rear shock absorber 52

Generating system 57

The charging system is an a c generator magnetic single phase a c generator which consists of the stator and rotor the a c generator is rectified by the selenium rectifier and is used to charge the battery 57

V electrical 57

Charging system a charging test 58

Current if they are less than values shown in the following table check or replace the stator selenium rectifier ignition coil and condenser with new one 58

Disconnect the red white wire harness 58

Measure the battery voltage and charging 58

Olyte in battery if it is below 1 6 cor rected to 20 c recharge the battery its normal value is 1 8 corrected to 20 c perform the following test 58

Start the engine and perform the following 58

Terminal from the terminal of the battery and connect it to the terminal of the ammeter connect the terminal of battery to the terminal of ammeter connect the red white wire harness to the terminal of the voltmeter and ground the terminal of the voltmeter to earth 58

Two tests in both the day and night opera tion mode fig 150 58

Use the ammeter and voltmeter 2 measure the specific gravity of the electro 58

A inspection 62

Auxiliary electrical equip 62

Check the front stop light switch for con tinuity by applying the tester lead probe to the black and green yellow green switch lead and depress the brake lever if there is no continuity the switch is de fective also check the action of switch manually 62

Combination switch fig 164 62

Front stoplight switch fig 165 62

If continuty exists in any other leads than those shown below first make sure the wiring harness is connected correctly if the wiring is correct the switch is defective check by the testing conductivity of wires with the switch in each positions replace with new one if the conductivity is not correct 62

Note check brake lever for excess play light should only operate by the brake 62

O o o o o 64

O o o o o o 64

Trouble shooting 65

Electrical system 68

Maintenance schedule the milage intervals shown in the maintenance schedule are intended as a guide for establishing regular maintenance and lubrication periods by which the best and most safe rid ing conditions are assured the operating procedures for individual items are described in the section of mainte nance operation after 12 months or 10 000 km 6 000 miles perform repeatedly all items which are described in the column at every 6 months or 5 000 km 3 000 miles intervals sustained severe or high speed operation under adverse conditions may necessitate more frequent servicing 70

O o o o 70

Periodical maintenance 70

Technical data 71

G y bk 73

Lb tube 73

Lb ube 73

Lg r lg 73

O tube 73

R tube _____fuse 15a 73

Wiring diagram 73

Y w y lb 73

Вгч 73

Contact 74

Green with yellow spiral 74

Lg r lg 74

Light blue 74

Light green 74

Light green with red spiral 74

Orange 74

Red with white spiral 74

Yellow 74

Yellow with white spiral 74

Or light 75

Bk black 76

Bl blue 76

Br brown 76

Cb125s 76

Fuse 1oa 76

G green 76

Gr grey 76

Lb light blue 76

Lg light green 76

Orange 76

P pink 76

W white 76

Y yellow 76

Bk black 77

Bl blue 77

Br brown 77

Cd125s 77

G green 77

Lb light blue 77

Lg light green 77

Or grey 77

Orange 77

P pink 77

W white 77

Y yellow 77

Tl i 25 79

Tl125 special tools 79

I maintenance operations 81

Ii engine 87

Engine 89

In engine chassis and electrical 89

Fig 33 90

The transmission used on tl 125 is essentially the same as those used on cb cl sl100 and cb cd sl 125s except for the gear arrangement on the main shaft and the resultant changes in the shift drum groove fig 33 disassembly inspection and assembly procedures will not be shown here since these are identical to those of cb100 see pages 32 thru 35 90

Transmission 90

Chassis 91

Electrical system 94

Accessories 96

Inspection of electrical 96

Table of optional parts 97

Maintenance schedule 98

Specifications 99

Tl 125 wiring diagram 100

Honda CB100 CL100 SL100 CB125S CD125S SL125 (1970) [52/101] Shoo sl125 attach the headlight case stay between the fork top bridge and steering stem and install the front fork as a unit tighten the front fork mounting bolts

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