Check the engine oil level as follows:

The engine oil level should be between "L" (Low) and "f" (full) lines.
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Caution The engine oil level must be between the " l'' (low) line and "f" (full) ~i ne, or engine damage may occur. Check the oil level, through the inspection window, with the motorcycle held vertically on level ground before each use of the motorcycle. |
Engine oil
Engine oil and filter changeDTC “c41” (p0230-h/l): fp relay circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C41
No voltage is applied to fuel pump.
Fuel pump relay circuit open or short.
Fuel pump relay malfunction.
Fuel pump relay switch circuit is shorted to power
source.
...
Rear brake master cylinder assembly removal and installation
Refer to “rear brake hose routing diagram” (page 4a-
2).
Removal
Remove the right side frame cover. Refer to “exterior parts removal and
installation” in section 9d .
Remove the rear brake fluid reservoir mounting bolt
(1).
Drain brake fluid. Refer to “brake fluid replac ...
Precautions
Precautions for brake system
Refer to “general precautions” in section 00 (page 00-1).
Brake fluid information
This brake system is filled with an ethylene glycol-based dot 4
brake fluid. Do not use or mix
different types of fluid, such as silicone-based or petroleum-based.
...