The fuel filter [A] is built into the fuel pump and can not be cleaned or checked.
If the fuel filter is suspected of clogging or being damaged, replace it with the fuel pump as a set.

Fuel Pump Circuit

1. Ignition Switch
2. Engine Stop Switch
3. Joint Connector E
4. ECU
5. Engine Ground
6. Battery
7. Starter Relay
8. Main Fuse 30 A
9. ECU Fuse 15 A
10. Frame Ground 2
11. Frame Ground 3
12. Frame Ground 1
13. Fuel Pump
14. Fuel Pump Relay
15. Relay Box
16. Fuse Box 1
17. Ignition Fuse 15 A
18. Joint Connector F
Pressure Regulator Removal
Fuel InjectorsFuel Pump Installation
Remove dirt or dust from the fuel pump [A] by lightly applying
compressed air.
Replace the fuel pump gasket with a new one.
Check that the fuel pump terminal [A] and band [B] are in
place.
Apply a non-permanent locking agent to the threads of
the fuel pump bolts.
Tighten the ...
Air Cleaner Oil Draining
A drain hose is connected to the bottom of the air cleaner
to drain water or oil accumulated in the cleaner part.
Visually check the drain hose [A] if the water or oil accumulates.
If any water or oil accumulates in the hose, remove the
plug [B] from the drain hose and drain it.
...
Liquid Gasket, Non-permanent Locking Agent
For applications that require Liquid Gasket or a
Non-permanent Locking Agent, clean the surfaces so
that no oil residue remains before applying liquid gasket or
non-permanent locking agent. Do not apply them excessively.
Excessive application can clog oil passages and
cause serious damage.
...