9-44
9
Refill with the same type of brake fluid. Add-
ing a brake fluid other than DOT 4 may result
in a harmful chemical reaction.
Be careful that water does not enter the
brake fluid reservoir when refilling. Water will
significantly lower the boiling point of the flu-
id and may result in vapor lock.
EBU24284Changing the brake fluidHave a Yamaha dealer change the brake fluid at
the intervals specified in the periodic maintenance
chart. In addition, have the oil seals of the brake
master cylinder and calipers as well as the brake
hoses replaced at the intervals listed below or
whenever they are damaged or leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.
EBU24396Checking the front brake lever free
playThere should be no free play at the brake lever
end. If there is free play, have a Yamaha dealer in-
spect the brake system.EBU34246Adjusting the rear brake lever and
brake pedal free playThe rear brake lever and brake pedal free play
must be checked and, if necessary, adjusted at
the intervals specified in the periodic maintenance
chart.1. No brake lever free play
UB5K64E0.book Page 44 Thursday, September 16, 2021 9:00 AM
11-2
11
Displacement:686 cm³
Bore × stroke:
102.0 × 84.0 mm (4.02 × 3.31 in)
Starting system:
Electric starterEngine oil:Recommended brand:
SAE viscosity grades:5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50 Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Quantity: Oil change:2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter removal: 2.10 L (2.22 US qt, 1.85 Imp.qt)
Final gear oil:Type:Yamaha Friction Modified Plus Shaft Drive Oil (Part No.:
ACC-SHAFT-PL-32)
Quantity: 0.52 L (0.55 US qt, 0.46 Imp.qt)Differential gear oil:Type:
Yamaha Friction Modified Plus Shaft Drive Oil (Part No.: ACC-SHAFT-PL-32) or SAE 80 API GL-4 Hypoid gear oil0 10 30 50 70 90 110 130 F
–20 –10 0 10 20 30 40 50 CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
UB5K64E0.book Page 2 Thursday, September 16, 2021 9:00 AM
