Limited voltage/rpm: 14-15V (5.000rpm)

If limited voltage is beyond the specified range, check voltage regulator.

Inspect limited voltage in lighting system.

* Attention

Set multimeter to position of AC voltage

 

Limited voltage: 13.1 (+/-) 0.5V/5.000rpm

If limited voltage is beyond the specified range, check voltage-cuttent regulator.

 

5.5 Voltage-current Regulator

1.5.1 Loop inspection on main wiring terminals

Disconnect the 6P plug on the voltage-current regulator.

 

Check continuity between main wiring terminals in the following way:

Item (wire color)	Judgment
Battery (red) and ground of vehicle block	It is battery voltage.
Ground wire (black) and ground of vehicle block	There is a lead wire.
Charging coil (white) and ground of vehicle block	No power flowing between magneto coil and ground
Between charging coils (while 1 and white 2)	There is resistance between coils

 

5.5.2 Voltage-current regulator inspection

When main wiring terminal is normal, check if plug of voltage-current regulator is of poor contact and measure impedance value between terminals of voltage-current regulator itself.

* Attention

• Do not touch the metal part of multimeter probe with your finger. • Check with a multimeter. If impedance values measured by different multimeters are not the same, it perhaps the inspection is not correct.

When impedance value between terminals is abnormal, replace voltage regulator.

 

Multimeter + -	White1	Red/white	Red	Black	White2
Unit: M¦ё
White1		No	No	0.1~3	10~90
red/white	No		No	0.1~3	No
Red	0.1~3	No		1.2~5	0.1~3
Black	No	No	No		No
White2	60~80	No	No	0.1~3

 

 

5.6 Alternator Charging Coil

* Attention

Inspection of alternator charging coil can be performed on the engine.

Inspection

Disassemble alternator 4P joint

Measure Alternator white coil and impedance between bodies with multimeter

Standard value: 0.6-1¦ёЈЁ20ЎжЈ©

If measured value exceeds the standard, the alternator coiling shall be replaced.

 

5.7 alternator light coil

* Attention

Inspection of alternator charging coil can be performed on the engine.

Inspection

Measure Alternator white coil and impedance between body bondings with multimeter

Standard value: 0.6-1¦ёЈЁ20ЎжЈ©

If measured value exceeds the standard, the alternator coiling shall be replaced.

 

5.8 disassembly of alternator

5.8.1 Disassembly

Disassemble fixed bolt and bolt

Take down left cover

 

 

Fix flywheel with universal fixed wrench

Disassemble flywheel fixed nut

Take down flywheel with flywheel puller

Disassemble solid key

Disassemble alternator guide line joint

Disassemble alternator stator

 

 

5.8.2 Installation

Install the alternator stator onto the engine box.

Connect lead-wire connector alternator.

 

Clean crankshaft and conical part of flywheel.

Make sure the fixation key is installed into the key slot on the crankshaft.

Align the groove on the flywheel to the fixation key on the crankshaft.

* Attention

There is magnetism on the inner surface of flywheel, ensure there is no bolt on it.

 

Fix the flywheel using a universal non-adjustable spanner and then tighten the locknut.

Torque value: 9.0 NЎ¤m

 

 

 

Install protecting plate on the left side.

VI Ignition System

Preparatory data ----------------6.1 Ignition coil ------------6.5

Fault diagnosis -----------------6.2 Trigger -----------------6.6

Ignition system inspection ---- 6.3 Charging coil---------- 6.7

CDI assembly ------------------6.4

Preparatory Data

Precautions on operation

1. Ignition system inspection: please perform inspection in the sequence listed in the fault diagnosis table.

2. Ignition system uses electronic-type automatic timing device, which is solidified in the CDI assembly, so it is unnecessary to adjust the ignition time.

3. Ignition system inspection: please perform inspection in accordance with the sequence listed in the fault diagnosis table.

4. Ignition system CDI shall not be dropped and hung, or heavily knocked (this is also the main reason for its failure). Pay special attention to this while removing it.

5. Most of the ignition system problem due to poor contact of sockets. Please check first if parts of the connector are well contacted.

6. Check if heat value of spark plug is proper. Improper spark plug may result in unsmooth engine running or burn of spark plug.

7. The maximum voltage is taken to introduce inspection items in this Part. Inspection methods for impedance value of ignition coil are also recorded and judged.

8. Check ignition switch according to the continuity test table.

9. Remove alternator and stator on operation instructions.

Preparatory data

Item	Standard Value
Recommending spark plug	Standard	C5HSA(NGK)
Hot type	C6HSA(NGK)
Cold type	C7HSA(NGK)
Spark plug gap	0.5-0.7mm
Ignition coil impedance value (20Ўж)	Primary coil	0.4¦ёЈЁ+/-Ј©10%
Secondary coil	With spark plug cap	8-11K¦ё
Without spark plug cap	4.5-5.5K¦ё
Impedance value of trigger (20Ўж)	100-200¦ё
Ignition coil primary peak voltage	95-400V
Trigger voltage	Above 1.7V

Tools