Brakes, Wheel Assemblies, and Tires tips

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Filed Under (Tips and Review) by admin on 09-02-2012

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BRAKING SYSTEMS The braking systems used on motorcycles and ATVs, like virtually any type of braking system, reduce the machine’skineticenergyby transforming it into heat energy known as friction heat . Therefore, a brake is an energy-conversion device that converts the energy of motion (kinetic energy) into heat energy. Motorcycle braking is accomplished by the friction (resistance to movement) produced when a brake lining is forced against a rotating drum or disc. Friction between the linings and drum or disc serve to slow and eventually stop wheel rotation. The brakes used on motorcycles fall into two categories: Mechanical drum, sometimes called expanding shoe Hydraulic disc Motorcycle brakes commonly use either hydraulic (fluid pressure) or mechanical (cable or linkage) mechanisms to apply the brakes. Brakes, Wheel Assemblies, and Tires 1 Mechanical Drum Brakes First, let’slookatthedrum brake, sometimes called the mechanical, expanding double-shoe brake ( Figure 1 ). Generally used for rear wheels, this brake is also used on some front wheels. With this kind of brake, a backing plate that’sconnectedtothe forks holds the two brake shoes. The wheel and brake drum rotate around the brake shoes. When the rider applies the brake, a cam pushes the two semicircular shoes outward. The circle formed by the two shoes expands. When the shoes expand, they press against the rotating drum, thereby limiting its free rotation

Yamaha XVS650 and 1100 Drag Star/V-Star Service and Repair Manual

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Filed Under (Yamaha) by admin on 27-04-2011

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Fortunately, Haynes cruises to the rescue with the introduction of its new Service and Repair Manual for all Yamaha XVS650 and 1100 models – XVS650 (‘97-’05), XVS650A Classic (‘98-’05), XVS1100 (‘99–’05) and XVS1100A Classic (‘00–’05). Hailed as “… essential reading for any biker tackling his own servicing…” by Motor Cycle News, Haynes manuals have an enviable reputation. The new manual provides fully illustrated, step-by-step instructions for DIY servicing, overhaul and repairs of the engine and transmission, fuel and ignition systems, suspension and steering, the braking system and the electrical system. Each task is given a spanner rating for complexity and experience required. Checking and adjusting the valve clearances is rated as three spanners out of five. There are full-colour sections on the history of the models, on daily preride hecks and those all-important wiring diagrams, plus tools required and Haynes Hints. For instance, when changing the brake fluid how to tell when all the old fluid has been displaced The section guiding readers

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APRILIA QUASAR 50-100-125-180 maintenance Manual

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Filed Under (Aprilia) by admin on 26-11-2010

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CHANGING ENGINE OIL CAUTION In case of oil leakage or malfunctions, contact an Aprilia Authorised Dealer . Do not dispose of oil in the environ- ment. Dispose of engine oil – stored in a sealed container – through the nearest waste oil reclamation firm or through the supplier. Carefully read page 34 (MAINTE- NANCE) To change engien oil: ◆ Ride for a few kilometres until engine reaches the operating temperature, then stop the engine. ◆ Position a graduated container (1), under the drain plug (2). ◆ Loosen oil filler plug (4) and drain plug (2). ◆ Let oil flow out of the sump. ◆ Loosen oil filter (3) and carefully clean it. ◆ Refit the filter and tighten fully. ◆ Tighten drain plug (2) and pour recommended oil into filler plug (4), see page 58 (LUBRICANT CHART). ◆ Tighten the filler plug. CAUTION Carefully tighten filler and drain plugs and ensure oil does not leak out. Periodically check for leaks at the casing cover gasket. Do not use the vehicle with insufficient lubrication or with contaminated or unsuitable lubricants, since this would cause early wear of the moving parts and may also cause irreparable failures Fluid reservoir (1) is under rear right wheelhouse. CAUTION Position the vehicle on firm and flat ground. ◆ Make sure that the fluid contained in the reservoir exceeds the ” MIN ” mark stamped on the reservoir. MIN = minimum level. WARNING Do not use the vehicle if the braking system is leaking fluid. CAUTION Do not use the vehicle if the fluid is below the “MIN” mark. 1
27 use and maintenance Quasar 50 – 100 – 125 – 180 CAUTION Brake fluid level decreases as the brake pads wear down. Should the level be too low: ◆ Check the brake discs and pads for wear, see page 27 (CHECKING THE BRAKE PADS FOR WEAR) If the pads and/or the disc do not need re- placing: ◆ Contact an Aprilia Authorised Dealer that will top up the fluid. WARNING Check the brake for proper operation. When the brake lever has exceeding travel or if you notice a loss of braking, contact an Aprilia Authorised Dealer . The braking system may need bleed- ing. CHECKING THE BRAKE PADS FOR WEAR Carefully read page 26 (BRAKE FLUID – recommendations) , page 26 (DISC BRAKES) and page 34 (MAINTE- NANCE). Periodically check brake pad wear. The rate at which brake pads will wear depends on vehicle usage, riding style and road surface condition. Outlined below is a quick brake pad inspection procedure: ◆ Visually check between brake disc and pads, check both pads (1) looking from the bottom at the rear end. ◆ Should friction material (of even one pad only) be worn down to 1.5 mm of thickness, have both pads replaced

Demonstrate knowledge of motorcycle braking systems and repair procedures

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Filed Under (Tips and Review) by admin on 21-11-2010

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Demonstrate knowledge of motorcycle braking system repair procedures. Performance criteria 2.1 Fault diagnosis procedures are described in accordance with service information. Range safety procedures when diagnosing, logical inspection procedure, checking fault codes, recognising wear, damage, scoring, poor adjustment, seized parts, corrosion, air in hydraulics, brake squeal, brake shudder, brake grab. 2.2 Hydraulic cylinder inspection procedures are described in accordance with service information. Range layout of components, cylinder operation, cleaning methods, measuring wear, attention to cleanliness, limits of corrosion and scoring. 2.3 Brake repair procedures are described in accordance with service information. Range repairing cylinders and callipers, safety implications, replacing cables and rods, fitting shoes and pads, adjusting brakes, replacing brake fluid, clearing fault codes, testing brake operation. Please note Providers must be accredited by NZQA, or an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be accredited by NZQA before they can register credits from assessment against unit standards. Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards. Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements