9.3 TECHNICAL INSPECTION
a) All turn signals, luggage racks and mirrors must be removed. Non-essential brackets, braces, grab rails, and chain guards may be removed. Center and side stands must be removed.
b) Parts of the motorcycle that have sharp edges or corners and that present a cutting hazard must be smoothed or covered with at least 1/8 inch of rubber or other approved padding. These parts include, but are not limited to, foot controls and side stand lugs.
c) The motorcycle seat or fender must extend rearward beyond the line drawn vertically through the rear axle.
d) If used, oil coolers must be securely mounted in a protected area. Manufacturerapproved oil lines or properly installed aftermarket lines and fittings must be used. Oil coolers, if used, must be frame mounted (no fork mounted oil coolers).
e) An unbreakable catch tank or reservoir of at least 6-oz. capacity must be provided for any breather hoses venting the following: cam box or top end, crankcase, primary, gearbox, oil tank, and radiator or coolant tanks. Catch tanks must be situated so they will not normally overflow unless more than two-thirds full. Liquid-cooled machines must use only water or “WaterWetter” as a coolant, and a separate 6-oz. catch tank must be provided.
f ) Oil containment. Oil containment systems are required on all roadracing machines. Oil containment pans on wet-sump engines must be designed to hold the capacity of the engine sump with nominal reserve. Material used must be durable, fastened safely and removable for inspection if required. The pan must have a retaining dam at the rear. Two-stroke and dry-sump machines must use a pan with a minimum capacity of one quart, or approved oil-absorbing material with a screen backing and fastened securely. Oil-absorbing material, securely retained in the bottom of the pan, is strongly recommended. All oil containment systems are subject to approval by technical inspection.
g) Kickstarters may not be retained on roadracers, except in Class C and Pre-1940 on handshift machines only. The kickstarter may be retained on supermotard type machines, provided the lever is equipped with a secondary restraint, such as an elastic band.
h) All machines must be equipped with effective silencers and exhaust systems must include sound attenuation material or devices. Open pipes and reverse cone megaphones are not effective silencers. Exceptions may be granted for exhibition purposes only. All exhaust systems must exit toward the rear of the motorcycle. Sound testing will take place at all AHRMA national events. This will be a pass-by test at a section of the circuit where machines are under full throttle. As dB(a) levels differ from circuit to circuit due to background and distance, only the worst offenders will be notified. Failure to meet track-imposed noise limits may result in disqualification from the day’s event and no refund of entry fees. These results will be posted
and published in Vintage Views. At tracks where noise limits are in effect, AHRMA will adhere to the track’s policy.
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) C rankcase filler, drain and level plugs must be lockwired.
c) T ransmission 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) E xhaust 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.
r) All disc brake caliper attaching bolts.
