From the rulebook:
9.4 LOCKWIRE REQUIREMENTS
Because historic racing motorcycles have unique characteristics of construction, AHRMA has developed specific lockwiring requirements for roadracers. As a general rule of thumb, “If in doubt, lockwire it.” Note: Only stainless steel lockwire may be used. The following regulations apply in addition to those listed above.
a) Primary case filler, drain and level-check plugs must be lockwired.
b) Crankcase filler, drain and level plugs must be lockwired.
c) Transmission filler, drain and level-check plugs must be lockwired.
d) Any primary case, crankcase or transmission inspection plug must be lockwired.
e) Any primary case, crankcase or transmission overflow or vent hoses must be lockwired.
f) Oil filter nuts and oil filter plugs must be lockwired.
g) Fuel tank overflow lines must be secured and have a catch bottle or one-way valve provided.
h) Lockwiring of carburetor drain plugs, or securing with a fuel-proof sealant, is encouraged.
i) All flexible oil lines must be a reinforced oil and gas resistant hose, and must be secured by lockwire as secondary security, in addition to a swaged fitting or hose clamp. Total-loss oiling systems must be equipped with unbreakable catch bottles and/or a “select pad” diaper system.
j) All fuel and oil lines must be securely clamped or secured by other acceptable means, and will be pull-tested during tech inspection.
k) All fork drains must be safety wired or securely taped.
l) Exhaust systems must be securely mounted and bolts lockwired. A secondary security system is encouraged and may be required at the Tech Inspector’s discretion.
m) Brake torque arm bolt lockwiring is required.
n) If not lockwired, axle nuts must be secured with a cotter pin or other acceptable means.
o) Foot brake pedal pivot bolts and nuts must be lockwired.
p) All brake rods and cables with threaded adjusters must be wired or cotter-pinned to prevent the loss of the adjuster nut.
q) All throttle cables must be secured to the throttle housing by lockwire.
Oh yeah, and don't forget a belly pan...
Honda go sideways!