2010 Yamaha Motorsports Apex GT Owners Manual - Page 68

2010 Yamaha Motorsports Apex GT Manual

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Periodic maintenance and adjustment 4 3 1. 2. 3. 4. Parking brake pad Brake disc Parking brake pad adjusting bolt Parking brake pad adjusting bolt locknut 1. Lower level Specified brake fluid: DOT 4 Parking brake pad to brake disc clearance (a) + (b): 1.5-2.0 mm (0.059-0.079 in) 7. 8. Tighten the parking brake pad adjusting bolt locknut. Install the right side cover and the shroud. Changing the brake fluid EWS00471 WARNING Make sure that the brake fluid and the following parts are replaced by a Yamaha dealer. Brake fluid replacement is necessary when the following components are replaced during the periodic maintenance or if they are damaged or leaking. G All oil seals of the master cylinder and caliper cylinder G The brake hose ESU13611 Checking the brake fluid level EWS00460 WARNING Be careful that water does not enter the master cylinder when refilling. Water will significantly lower the boiling point of the fluid and may result in vapor lock. If the brake fluid level goes down, consult a Yamaha dealer. ECS00550 Extrovert drive sprocket Check the extrovert drive sprocket for wear and damage. Replace if necessary. To measure the drive sprocket wear 1. Measure 20 mm (0.79 in) up from the bottom of a drive sprocket tooth. 2. Measure the drive sprocket tooth width at the height measured in step 1. If the tooth width is less than 13 mm (0.51 in), replace the drive sprocket. NOTICE Brake fluid may deteriorate painted surfaces or plastic parts. Never spill any fluid. If any is spilled, clean it up immediately. Place the snowmobile on a level surface and apply the parking brake. Check that the brake fluid is above the lower level and replenish when necessary. 62

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Periodic maintenance and adjustment
62
7.
Tighten the parking brake pad adjusting
bolt locknut.
8.
Install the right side cover and the shroud.
Checking the brake fluid level
WARNING
EWS00460
Be careful that water does not enter the
master cylinder when refilling. Water will
significantly lower the boiling point of the
fluid and may result in vapor lock.
If the brake fluid level goes down, consult
a Yamaha dealer.
NOTICE
ECS00550
Brake fluid may deteriorate painted sur-
faces or plastic parts. Never spill any fluid.
If any is spilled, clean it up immediately.
Place the snowmobile on a level surface and
apply the parking brake. Check that the brake
fluid is above the lower level and replenish
when necessary.
Changing the brake fluid
WARNING
EWS00471
Make sure that the brake fluid and the fol-
lowing parts are replaced by a Yamaha
dealer.
Brake fluid replacement is necessary when
the following components are replaced during
the periodic maintenance or if they are dam-
aged or leaking.
●
All oil seals of the master cylinder and cali-
per cylinder
●
The brake hose
ESU13611
Extrovert drive sprocket
Check the extrovert drive sprocket for wear
and damage. Replace if necessary.
To measure the drive sprocket wear
1.
Measure 20 mm (0.79 in) up from the bot-
tom of a drive sprocket tooth.
2.
Measure the drive sprocket tooth width at
the height measured in step 1. If the tooth
width is less than 13 mm (0.51 in), re-
place the drive sprocket.
1.
Parking brake pad
2.
Brake disc
3.
Parking brake pad adjusting bolt
4.
Parking brake pad adjusting bolt locknut
Parking brake pad to brake disc clear-
ance (a) + (b):
1.5–2.0 mm (0.059–0.079 in)
4
3
1.
Lower level
Specified brake fluid:
DOT 4