Target Audience:
Entry-level riders, parents of young riders, hobbyists, mechanics
Segment:
Beginner-friendly mini-motocross/trail bike
Key Competitors:
Honda CRF50F, Kawasaki KLX110 (though KLX110 is larger)
Ease Of Use:
Automatic transmission, low seat height, electric start
Durability:
Known for Yamaha's robust engineering and build quality
Applicable Years:
2006, 2007, 2008, 2009, 2010
Page Count:
Estimated 200-300 pages (typical for this type of manual, actual may vary)
Manual Type:
Workshop Repair and Service Manual
Engine Mechanical:
Complete engine overhaul, piston, rings, cylinder, valve train, crankshaft, timing
Fuel System:
Carburetor assembly, jetting, fuel lines, fuel tank
Ignition System:
CDI, spark plug, ignition timing, stator coil
Transmission Drivetrain:
Automatic transmission operation, clutch, gearbox, final drive
Chassis Suspension:
Front fork, rear shock absorber, swingarm, bearings
Brakes:
Front and rear brake systems, hydraulic components, pads, discs
Electrical System:
Wiring diagrams, lighting, battery, starter system (if applicable), switches
Bodywork Frame:
Frame inspection, body panels, seat, handlebars, controls
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, air filter cleaning/replacement, spark plug checks
Troubleshooting:
Diagnostic flowcharts, common problem identification and solutions
Component Disassembly Assembly:
Step-by-step instructions for removing and installing major components
Rebuilds Overhauls:
Detailed procedures for engine, transmission, and suspension rebuilds
Torque Specifications:
Precise torque values for all critical fasteners
Depth Level:
Comprehensive, covering from basic maintenance to full engine and component rebuilds
Engine Type:
Four-stroke, SOHC, air-cooled
Bore X Stroke:
39.0 mm x 41.4 mm
Compression Ratio:
10.5:1
Horsepower Estimated:
Approximately 3.1 HP @ 7,000 RPM (manufacturer data often not precise for this segment)
Torque Estimated:
Approximately 2.3 lb-ft @ 5,500 RPM
Carburetor:
Mikuni VM11/1
Fuel Capacity:
1.1 L (0.3 US gal)
Ignition:
CDI (Capacitor Discharge Ignition)
Oil Type:
Yamalube 4 (or equivalent SAE 10W-30 API SG or higher)
Oil Capacity:
0.80 L (0.85 US qt)
Safety Standards:
Designed for recreational off-road use, meets basic safety requirements for mini-bikes
Throttle Limiter:
Adjustable throttle stop screw for limiting speed (covered in manual)
Chain Guard:
Enclosed chain drive for rider safety
Engine Kill Switch:
Handlebar-mounted kill switch for immediate engine shutdown
Engine Oil Change:
Every 1000 km (600 miles) or 6 months, whichever comes first (or more frequently under severe use).
Air Filter Cleaning:
Every 500 km (300 miles) or as needed in dusty conditions.
Spark Plug Check:
Every 1000 km (600 miles) or annually.
Chain Lubrication Adjustment:
Every 300 km (200 miles) or as needed.
Engine Oil Specification:
SAE 10W-30 API SG or higher (Yamalube 4 recommended)
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for specific caliper type)
Carburetor Clogging:
Can occur if the bike sits for extended periods with fuel, leading to hard starting or poor running. Regular fuel stabilizer use is recommended.
Throttle Cable Wear:
The throttle cable can stretch or fray over time, requiring adjustment or replacement. Smooth operation is key.
Suspension Seals:
As with many small bikes, fork seals can sometimes leak, especially with hard use. The manual covers seal replacement.
Electric Start System:
While generally reliable, the starter motor or battery connections can be points of failure if not maintained. Manual covers troubleshooting.
Brand Focus:
Yamaha has a long-standing reputation for quality, innovation, and performance in motorcycles across all segments.
Ttr Series Context:
The TTR line represents Yamaha's off-road recreational motorcycles, known for their user-friendliness and durability, making the TTR50E an ideal starting point.
Production Period:
Introduced around 2005/2006, the TTR50E has seen minor updates through its production run up to the present day.
Manufacturing Location:
Primarily manufactured in Japan and/or other Yamaha global facilities.
