Roll the wheel axle on a flat surface.
Bends → Replace.
Warning! Do not attempt to straighten a bent wheel axle.
![](https://motoinstruction.ru/img/yamaha/16/122444.jpg)
2. Check:
- tire
- front wheel
Damage/wear → Replace. Refer to "Checking the tires" and "Checking the wheels".
3. Check: spokes
Bends/damage → Replace.
Loose → Tighten.
Tap the spokes with a screwdriver.
![](https://motoinstruction.ru/img/yamaha/16/122445.jpg)
Note: A tight spoke will emit a clear, ringing tone, a loose spoke will sound flat.
4. Tighten: spokes: 3 Nm (0.3 m·kg)
Note: After tightening the spokes, measure the front wheel runout.
5. Measure:
- front wheel radial runout (1)
- front wheel lateral runout (2)
Over the specified limits → Replace.
![](https://motoinstruction.ru/img/yamaha/16/122446.jpg)
- Front wheel radial runout limit: 1.0 mm
- Front wheel lateral runout limit: 0.5 mm
6. Check: collars
Damage/wear → Replace.
Warning! New tires have a relatively low grip on the road surface until they have been slightly worn. Therefore, approximately 100 km should be traveled at normal speed before any highspeed riding is done.
7. Check:
- wheel bearings. Front wheel turns roughly or is loose → Replace the wheel bearings.
- oil seals. Damage/wear → Replace.
8. Replace:
- wheel bearings (New)
- oil seals (New)
a. Clean the outside of the front wheel hub.
b. Remove the oil seals (1) with a flat-head screwdriver.
Note: To prevent damaging the wheel, place a rag between the screwdriver and the wheel surface.
![](https://motoinstruction.ru/img/yamaha/16/122447.jpg)
c. Remove the wheel bearings with a general bearing puller (2).
d. Install the new wheel bearings and oil seals in the reverse order of disassembly.
Caution! Do not contact the wheel bearing center race (4) or balls (5). Contact should be made only with the outer race (6).
![](https://motoinstruction.ru/img/yamaha/16/122448.jpg)
Note: Use a socket (3) that matches the diameter of the wheel bearing outer race and oil seal.