Author Topic: Safety Wire - lil help please. And an added tire question  (Read 1702 times)

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Offline greenjeans

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Safety Wire - lil help please. And an added tire question
« on: April 18, 2016, 02:50:50 PM »
Building a poor man's CR "race bike" for a buddy of mine.  He would like to have things safety-wired.  He's one of those guys that just buys things.  He will take the bike racing, although I doubt it will be more than 2 or 3 times. 

Is there a rule of thumb for what needs to be wired ?    Any publications that you would suggest ?


For a vintage looking tire worthy of track time is it still pretty much Dunlop K81 TT100 ?     Going to be running 18" rims front and rear.   3.5 & 4.00 widths or.....  should I go a bit wider ?     Both rims are WM3 although I have a WM4 stashed that I might use.
« Last Edit: April 20, 2016, 09:18:37 AM by greenjeans »
Yep, I'm the kid that figured out how to put things back together...eventually.

Offline MRieck

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Re: Safety Wire - lil help please
« Reply #1 on: April 18, 2016, 03:39:48 PM »
Building a poor man's CR "race bike" for a buddy of mine.  He would like to have things safety-wired.  He's one of those guys that just buys things.  He will take the bike racing, although I doubt it will be more than 2 or 3 times. 

Is there a rule of thumb for what needs to be wired ?    Any publications that you would suggest ?
Anything that holds/carries fluid (including oil filter bolt and oil tank dip stick/drain bolt) and axle nuts. I'd include the shifter lever bolt and brake lever bolt too.Air cooled engines are a cinch....liquid cooled are much different.
Owner of the "Million Dollar CB"

Offline calj737

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Re: Safety Wire - lil help please
« Reply #2 on: April 18, 2016, 03:52:17 PM »
In addition to what Mike said, he should check the Tech Inspection list for the racing organization and class he plans to participate in. That will be the definitive.
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline bwaller

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Re: Safety Wire - lil help please
« Reply #3 on: April 18, 2016, 05:07:41 PM »
Per the VRRA rulebook. It'll mention where they want lockwiring.  ::) Buy a couple extra drills!


MACHINE TECHNICAL REQUIREMENTS
 The following is a non-inclusive checklist for preparing racing motorcycles. Tech inspectors may
verify any of these items as part of the criteria used to determine if a motorcycle is acceptable for
road racing.
ENGINE, GEARBOX AND RELATED COMPONENTS (where fitted)
- any hose or pipe that has fluid of any kind passing through must be lockwired
- engine oil level (wet sump)
- gearbox oil level
- clutch secure and adjusted
- engine and gearbox mounting plates and fasteners tight
- primary chain adjusted and lubricated
- primary chain master link clip installed in proper direction and lockwired
- no oil leaks
- oil filler caps wired
- all drain plugs, caps, level check plugs or covers on engine, primary drive and transmission group which
will drain oil if loosened must be lockwired
- inspection covers on engine, primary cover and gearbox must be lockwired or otherwise secured
- all vents from engine and gearbox to be of adequate size, free and clear and piped to an empty catch
bottle of adequate size
- all oil lines secured and ends clamped so as to prevent line from sliding off of fittings
- all oil lines must be secured by lockwire as secondary security
- oil filter mounts tight and filter secured by lockwire or other means
- oil tank drains and banjo bolts lockwired
- oil tank filler cap lockwired or secured by mechanical device that will prevent it from opening or
unscrewing
- adequate oil in tank
- radiator caps and all water drain plugs must be lock wired
- radiator breather/overflow hose must be piped to a catch bottle of adequate size
- only water is to be used in cooling systems, anti-freeze or any other additive is prohibited except
approved water wetter
- fuel lines secured by safety wire or gear clamps
- no leaks in fuel system
- carburetor fasteners tight
- carburetor tops tight
- carburetor float bowl drains lockwired
- exhaust system, fairing and footpegs mounted to allow adequate ground clearance for roadracing
- exhaust systems, including megaphones, expansion chambers, mufflers and baffles must be
 securely mounted, all mounts and brackets must be lockwired and where possible, there should be
 a second system securing the pipes
REAR WHEEL AND RELATED COMPONENTS (where fitted)
- excess tire wear
- tire pressure
- spokes tight
- rim straight
- valve cap on (metal, not plastic)
Revised: March 2016 9
- wheel balanced
- wheel balance weights secure
- axle nut lockwired or cotter-pin
- all brake mounting hardware must be lock wired or fitted with a cotter pin
- brake stay bolts lockwired or cotter-pin
- brake adjusted and effective
- brake cable or brake rod not damaged or worn
- all brake cables and rods with threaded adjusters must be lock wired to prevent loss of adjuster
- brake pedal and pivot secure
- chain adjusters secure and lockwired
- wheels in line
- front and rear sprocket retaining hardware secure
- final drive chain lubricated and adjusted
- master link clip installed with open end of clip at trailing end of master link (clip shall be safety-wired)
- rear fender secure
FRONT WHEEL AND BRAKE, FRONT SUSPENSION, HANDLEBARS, CONTROLS AND
RELATED COMPONENTS (where fitted)

- excess tire wear
- tire pressure
- spokes tight - none broken
- rim straight
- valve cap on (metal, not plastic)
- wheel balanced
- wheel balance weights secure
- wheel bearings not worn
- axle nut lockwired or cotter-pin
- axle clamps tight and wired (lower fork leg)
- fork leg drain plugs wired, unless countersunk in the fork leg, in which case tape wrapped around the
fork leg and covering the drain will suffice
- forks dampen and rebound (no leaks)
- adequate oil in the forks
- fender secure
- front brake adjusted and effective
- front brake cable(s) lubricated
- front brake cable(s) not frayed or damaged
- all brake mounting hardware must be lock wired or fitted with a cotter pin
- all brake hoses must have banjo bolts or fittings lockwired
- brake stay bolts/torque arms lockwired or cotter-pin (lock nuts or retaining plates are acceptable)
- upper and lower crown pinch bolts and fasteners tight
- clip-ons or handlebars tight
- all throttle cables must be secured to the throttle housing by lock wire
- throttle snaps shut without assistance at any steering position
- adequate clearance between the front brake lever and the throttle housing on hard application of the
brake
- kill switch operating and wiring secure
- handgrips tight on the bars (make sure they do not get loose when bars are wet)
- steering head bearings properly adjusted and not binding or loose
Revised: March 2016 10
- steering stops fitted to prevent clip-ons, handlebars, or controls from contacting the fuel tank or fairing
at full steering lock in either direction
- clutch lever, brake lever, and throttle housing secure on handlebars
- clutch cable nipples and barrels not worn
- clutch cable not frayed or damaged at either end
FRAME, STREAMLINING AND RELATED COMPONENTS (where fitted)
- all lenses, reflectors or glass removed or duct-taped
- fairing mounts and fairing secure
- fairing not interfering with operation of the machine
- no jagged edges on fairing or windscreen
- all stands removed
- number plates (or background) and numbers correct size and colour
- no cracks or visible damage to frame or swingarm
- swingarm pivot tight and lockwired
- rear suspension mountings tight and lockwired
- fuel tank secured such that it will not separate from the motorcycle in the event of an accident
- battery and battery box secure
- battery charged
- wiring secured and not frayed
- seat mounts secur

Offline calj737

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Re: Safety Wire - lil help please
« Reply #4 on: April 18, 2016, 05:37:16 PM »
That's an evenings worth of beer right there! Sheesh!
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline greenjeans

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Re: Safety Wire - lil help please
« Reply #5 on: April 19, 2016, 05:02:26 PM »
Oh, he will owe me more than beer.  Got a tool/clamp in the mail to hold the nuts & bolts while drilling.
Always more than you realize.  Thanks fellas
Yep, I'm the kid that figured out how to put things back together...eventually.

Offline Rocketman

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Re: Safety Wire - lil help please. And an added tire question
« Reply #6 on: April 21, 2016, 08:42:50 AM »
You will want a guide for drilling the holes across the corners of bolt heads and nuts.  Aircraft Spruce sells a good one.  You will need a longer bolt to hold 8 mm fasteners.

http://www.aircraftspruce.com/catalog/topages/nutsaftblok.php?clickkey=208104