1. Remove left and right side tank covers to
access rider seat bolts.
2. Remove rider and passenger seat.
3. Remove the passenger seat latch assembly.
4. Remove upper and lower rear cowl.
5. Remove left and right side fairings.
6. Remove the three nuts securing EXCVA cover
to the header and remove the exhaust valve
cables from the header.
7. Remove the four bolts securing rear fender to
subframe to access EXCVA motor.
8. Remove the cable spring clip on EXCVA motor.
9. Using a wrench, hold the EXCVA pulley and
remove the pulley bolt.
1
Note : Do not rotate EXCVA pulley manually.
Doing so may damage the internal gears
of the EXCVA motor.
2
Note : Do not disconnect EXCVA connector.
Doing so may cause error codes to
appear and possibly cause the vehicle to
operate in a power limited fail safe mode.
10. Remove the EXCVA pulley and cables as it will
not be used with the Yoshimura full-system.
Note: The EXCVA pulley bolt will be re-used.
Removal
3
CAUTION: Exhaust system can be extremely hot.
Let motorcycle cool down before
beginning installation. Always wear
hand and eye protection and take
precautionary measures to avoid
injury.
WARNING: Always properly support vehicle with
a stand and/or lift when servicing or
performing any work. Unstable
vehicles may present dangerous
conditions and may cause property
damage and/or personal injury.
NOTE: Read through all instructions before
beginning installation.
11. Remove muffler heatshield bolt and remove
heatshield.
12. Loosen the muffler exhaust clamp.
13. While securely supporting the stock muffler
assembly, remove the muffler mount bolt and
carefully remove the stock muffler assembly.
14. Locate and disconnect O2 sensor wire
connector and remove from the stock header
assembly.
15. Remove header exhaust valve cable from
bendable clamp located on the oil pan.
16. Remove the header chassis mount bolt.
17. While securely supporting the stock header,
remove the header flange bolts and carefully
remove the stock header.
Note: The stock exhaust port gaskets will not be
used with the Yoshimura full-system.
Remove from exhaust port before
proceeding to installation.
Installation
1. Install (No. 1)
1118SMT,
manifolds and (No. 2)
1118SDY-1,
flanges using the stock header
flange bolts. See below for proper flange
orientation. Do not torque at this time.
Note: Hook springs onto flange before installing
header legs. Due to limited space, it may
be difficult to hook springs onto flanges
after header is installed.
2. Install (No. 3)
11182-404/704,
header by slipping
each leg onto manifolds from one end to the
other. Using a soft mallet, gently tap each
header leg to make sure header is fully seated to
the manifolds.
3. Align header chassis mount bracket to the
backside of chassis mount and secure using the
stock bolt and (No. 6)
8MMWASHERL,
8mm
large washer and (No. 7)
8MMNUT,
8mm flange
nut. Do not torque at this time.
View Looking At Exhaust Port
Spring Locations
