When inspecting the chain, look for the following:
If you find anything wrong with the drive chain condition or adjustment, correct the problem if you know how. If necessary, consult your authorized suzuki dealer.
Damage to the drive chain means that the sprockets may also be damaged. Inspect the sprockets for the following:

Note
: the two sprockets should be inspected for wear when a new chain is installed and replaced if necessary.
If you find any of these problems with your sprocket, consult yoursuzuki dealer.
Warning
An incompletely riveted master link, or a joint-clip type master link, may come apart and cause an accident or severe engine damage. Do not use a joint-clip type chain. Chain replacement requires a special riveting tool and a high-quality, non-jointclip type chain. Ask an authorized suzuki dealer or qualified mechanic to perform this work. |
Drive chain
Drive chain cleaning and
oilingFront brake master cylinder / brake lever disassembly and assembly
Refer to “front brake master cylinder assembly removal and installation” .
Disassembly
Remove the reservoir cap (1), plate (2), diaphragm
(3) and reservoir tank (4).
Remove the brake light switch (5) and brake lever
(6).
Remove the dust boot (7) and push rod (8).
  ...
DTC “c40” (p0505 / p0506 / p0507): isc
valve circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
C40/P0505
The circuit voltage of motor drive is
unusual.
Isc valve circuit open or shorted to ground.
Air passage clogged.
Isc valve is fixed.
Isc valve prese ...
Accessory installation
guideline
Install aerodynamic affecting
accessories, such as a fairing,
windshield, backrests, saddlebags,
and travel trunks, as low
as possible, as close to the
motorcycle and as near the
center of gravity as is feasible.
Check that the mounting
brackets and other attachment
hardware are ...