SunL SL150-18 - TROUBLESHOOTING; Engine Starting and Running Issues

MAINTENANCE TROUBLESHOOTING

Engine 2. Charge the battery and reinstall it.

Starter does not operate or does not turn engine over 3. Discharge the anti-rust oil in the fuel tank and refill the fuel.

4. Conduct pre-driving inspection and check its performance at low

speed.

1. Ignition key switch not set to position.

2. Discharged battery or loose or corroded connections.

Engine turns over but does not start

Tools set 1. Fuel tank is empty.

For your convenience in maintenance, we provide one set of tools for

you. They are put inside the front luggage carrier of the scooter with the

following details:

2. Fuel supply valve or filter clogged.

3. Discharged battery or loose or broken terminal connections.

4. Fouled spark plugs.

1. Tool bag; 2. Double-end spanner; 5. Loose or shorting spark plug cables or connections.

3. Double-end screwdriver; 4. Socket for spark plug. 6. Loose or corroded wire or cable connection(s) at coil or battery.

7. Engine flooded with fuel as a result of over-enriching.

8. Engine oil too heavy (winter operation).

Starts hard

General 1. Spark plug in bad condition or have improper gap or are partially

fouled. The following checklist of possible operating troubles and their

probable causes will be helpful in keeping your scooter in good

operating condition. More than one of these conditions may be causing

the trouble and all should be carefully checked.

2. Spark plug cables in bad condition and leaking.

3. Battery nearly discharged.

4. Loose wire or cable connection(s) at one of the battery terminals or

at coil.

W

arning: The troubleshooting section of this Use

r

’s Manual is

intended solely as a guide to diagnosing problems. Carefully

read the appropriate sections of this manual before performing

any work. Repair and maintenance operations not listed in this

manual, should be performed by your dealer. Lack of regular

maintenance affects the safe operation of your scooter and may

lead to personal injury.

5. Water or dirt in fuel system and carburetor.

6. Carburetor is not adjusted correctly.

7. Engine oil too heavy (winter operation).

8. Ignition is not timed properly. See dealer or service.

9. Engine’s idle speed is not set properly. See dealer or service.

10. Engine’s cylinder inside is less pressure. See dealer or service.

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SunL SL150-18 - TROUBLESHOOTING; Engine Starting and Running Issues

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