2011 YAMAHA TT-R50E features
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2011 YAMAHA TT-R50E
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Highlights
• 49cc, 4-stroke power
• Convenient Electric Starting
• Throttle Stop Screw
Key Features:
Engine
• Air-cooled, 49.5cc, SOHC, 2-valve, 4-stroke powerplant produces smooth, reliable novice friendly power that eases the new rider up the learning curve.
• Convenient, push-button electric starting makes starting a snap and takes one of the hassles out of learning how to ride.
• Compact engine cases keep the engine narrow, making it easier for a smaller rider to get their feet firmly on the ground.
• Lightweight crankshaft design means crisp throttle response.
• The cylinder uses a conventional cast iron liner which means the engine can be overbored. The benefit is reduced costs in the event of a problem, plus the unit can be bored for adult pit bike use.
• Valve design features a special "carbon cutter" valve stem which helps to prevent the build up of carbon on the stem, which could cause a valve to stick. This is an important feature when a unit will be operated at sustained low speed and low rpms. Valve adjustments are via rocker arms for ease of maintenance.
• Automatic ratchet-type cam chain adjuster reduces maintenance, extends engine life and reduces mechanical noise.
• Revised Mikuni VM11 carburetor ensures crisp throttle response and great fuel economy. It also features an electric carb heater for reduced engine warm-up time and faster cold starting (heater doesn't function above 16 degrees C or warmer). Carburetor changes include "Electroless" nickel plating applied to valve seat and nickel silver needle valve. These changes are to counter act the negative effects of E10 (10% ethanol) fuels.
• Other fuel system changes include a revised fuel petcock, new fuel cap and new fuel cap rubber vent hose. These changes are again related to the use E10 (10% ethanol) fuels.
• Washable foam air filter reduces maintenance costs.
• Smooth-shifting, 3-speed transmission with automatic centrifugal clutch eases the beginner into the basics of shifting, without the complications of a clutch. The auto clutch means all the rider does is shift the foot pedal … there is no clutching involved.
• Transmission ratios have been designed to compliment the engine's power band.
• CDI ignition system delivers a hot, reliable spark, sure starts and requires no maintenance.
• Centrifugal oil filtering system is basically an automatic system that requires no maintenance.
• Lightweight, upswept exhaust system features numerous heat shields to protect young riders for hot components. This exhaust system produces a quiet exhaust note which will keep the neighbors happy. A cleanable screen-type spark arrestor protects Mother Nature from stray sparks.
Chassis
• Rugged "mini-size" steel back bone type frame provides rugged durability whether being ridden by a child or an adult. The engine mounts to the frame at three points, making the entire chassis more rigid for superior handling.
• Triangulated steel tube swingarm is both rugged and rigid.
• Inverted 22mm Showa front fork offers a class leading 96mm (3.8") of wheel travel providing confidence-inspiring control over rough terrain. The lower fork legs feature rugged plastic protectors that help to protect the fork legs from stone chips.
• Monocross single shock rear suspension with 71mm (2.8") of wheel travel delivers progressive suspension performance to smooth out rough trails.
• Low 556mm (21.9") seat height provides a handling-enhancing lower centre of gravity and allows most riders to put both feet firmly on the ground for added confidence.
• Long, motocross-style seat is low, comfortable and allows easy rider movements.
• Front and rear 80mm drum brakes deliver strong dependable stopping power. The brake design and components are the same front and rear.
• 2.50x10 front and rear knobby tires feature a 4 ply design, and offer superb traction in the dirt.
• 135mm (5.3") of ground clearance allows the TT-R50E to tackle modest obstacles.
Features
• Rugged YZ-inspired plastic body components resist damage in the event of a tip-over. This design gives the TT-R50E that big YZ look while also creating a narrow profile for easy rider movements.
• Key operated, handlebar mounted ignition switch prevents joy rides when an adult supervisor is not present.
• Rugged YZ style handlebar features a re-enforcing cross bar for extra strength and a foam pad to protect the rider. YZ style grips give that big bike feel.
• Special sealed battery design is low-maintenance and prevents leakage even during a tip-over.
• Serrated steel folding footpegs provide excellent footing even in wet or muddy conditions.
• Convenient handlebar mounted paddle-style choke lever is easily accessible.
• On/off/reserve fuel petcock
• Cosmetic improvements for 2011 include new silver coloured surface treatment for the gear shift pedal, rear brake pedal, footpegs, rear sprocket, and engine mounting bracket.
Safety Items
• Throttle stop screw allows parents or adult supervisor to control the top speed of the TT-R50E by restricting how far the throttle can be opened.
• Exhaust heat shields protect young riders from hot components
• Foam handlebar pad
• Keyed ignition allows parents to control use
• Upper and lower chain guards
IMPORTANT NOTE: Adult supervision and proper protective riding gear, including a helmet and eye protection are a must when a youngster is operating a TT-R50E.
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