WangYe WY50QT-28A, Manual

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Tabel 3
speedometer
（
x1000km
）
1 4 8 12
Cycle
Item
Every month
6 12 18
Ref page
﹡
Fuel pipe
I I I I
﹡
Operation of the
throttle
I I I I 15
﹡
Core of the air filter Note1 C/1000km, if need: R 22
﹡
Spark plug C/2000km,If need: R
25
﹡
belt Per1000km I If need: R
﹡
Gearbox oil Note
（
300km
） I 24
Idling speed
I I I I 23
Brakes system
I I I I 11
Brakes switch
I I I
﹡
Headlamp
I I I
﹡
Suspension
I I I
﹡
nuts\bolts tighten Note
2 I I
﹡
Wheel & tire
I I I 13
﹡
Turning bearing
I I
* If you have all of tool and maintenance document, you are a mechanic person, or else must let
special person maintenance and repair. For safety, we claim all of items have done by mechanic
person.
* Note: 1. If this area is very damp or have a lot of dirty .you had better make a short time
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for maintenance, when it take more oil quantity or not strength, it must change.
2. If it was used every day, must make maintenance.
3. Change then according to season in a cold area.
Simple trouble solution (table 4) Table 4
Complaint Symptom and possible causes solution
Damaged spark plug Replace
Damaged Ignition Coil Replace
Defective CDI Replace
Defective ignition switch Replace
Plug not
sparking
Renegade or loosely Ignition system
点火系统脱落或松动
Connect well or tighten
Spark plug gap too small or big
Adjust
Spark plug pole burn
Replace
Spark
plug is
weak
Spark plug accumulates carbons Clear out
Fuel use out Replenish
Oil mouth stop up Dredge
Fuel tank switch wear Change
Fuel path stop up Dredge
Air filter stop up Clean the air filter element
No mixed
air in
cylinder
Intake system leak Check and clear out
Spark plug seat leak Tighten spark plug
Cylinder cover leak Change washer
Piston ring & cylinder wear badly Change piston or cylinder
Engine
does not
start
Cylinder
compresses
strength low
Piston ring break/ unused Carbon block Change piston ring / clear out carbons