You need to know the frame and engine serial numbers to get title documents for your motorcycle.
You also need these numbers to help your dealer when you order parts.

The frame number 1 is stamped on the steering head as shown in the illustration. The engine serial number 2 Is stamped on the crankcase assembly.
Write down the serial numbers here for your future reference.
Tampering with noise control system prohibited
Location of labelsEvaporative emission control system
removal and installation (only for e-33)
Hose
removal
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Remove the frame cover assembly. Refer to “exterior parts removal and
installation” in section 9d .
Remove the evap hoses as shown in the evap canister h ...
Oil cooler / oil cooler hose removal and
installation
Refer to “electrical components location” in section 0a .
Removal
Turn the ignition switch off.
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Drain engine oil. Refer to “engine oil and filter replacement” in
section 0b .
...
Oil pressure switch inspection
Inspect the oil pressure switch in the following
procedures:
Note
before inspecting the oil pressure switch, check if the engine oil level
is correct. Refer to “engine oil and filter replacement” in section 0b .
Remove the left side cowling. Refer to “exterior parts removal ...