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 labelsIgnition coil and spark plug removal and
installation
Removal
The hot
engine can burn you.
Wait until the engine is cool enough to touch.
Turn the ignition switch off.
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the lead wire couplers (1).
...
Tampering with noise control system prohibited
Federal law prohibits the following
acts or the causing there of;
The removal or rendering inoperative
by any person other
than for purposes of maintenance,
repair, or replacement,
of any device or element of
·design incorporated into any
new vehicle for the purpose of
noise ...
Crankshaft thrust clearance inspection and
selection
Refer to “engine bottom side disassembly” (page 1d-
49).
Refer to “engine bottom side assembly” .
Inspection
With the crankshaft’s right-side and left-side thrust
bearings inserted into the upper crankcase.
Measure the thrust clearance “a” between the leftside
thrust bearing and ...