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1985

XN 506

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MotoLibrary Score
43 /100 Commuter
Power
27 HP
Top Speed
137 km/h
Engine
504 ccm

1985 SVM XN 506 Technical Analysis & Specification Breakdown

At the heart of the 1985 SVM XN 506 motorcycle, SVM pairs a 504 cc (30.8 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 27 HP (19.7 kW) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 53.6 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the XN 506 measures 150 kg (331 lbs) wet (curb), translating to a power-to-weight ratio of 0.18 HP/kg (5.56 kg per horsepower). The 10.5-liter (2.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 137 km/h (85 mph).

Within MotoLibrary's SVM archive, this model family spans 2 indexed model years from 1984 to 1985, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
53.6 HP/L
Power-to-Weight
0.18 HP/kg (5.56 kg/HP)
Engine
Displacement 504.0 ccm (30.75 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 27.0 HP (19.7 kW)) @ 6000 RPM
Compression 9.5:1
Bore x Stroke 89.0 x 81.0 mm (3.5 x 3.2 inches)
Valves/Cylinder 4
Fuel Control Overhead Cams (OHC)
Ignition CDI / Transistorized
Lubrication Wet sump forced lubrication
Cooling Air
Transmission
Gearbox 5-speed
Final Drive Chain (final drive)
Clutch Multiplate wet clutch, cable/hydraulic operated
Driveline O-ring / X-ring chain final drive
Chain Size 520
Performance
Top Speed 137.0 km/h (85.1 mph)
Chassis
Front Suspension Telescopic fork
Rear Suspension Dual shock absorbers
Wheels & Brakes
Front Tyre 3.00-21
Rear Tyre 4.00-18
Front Tire Pressure 2.3 bar (33 psi)
Rear Tire Pressure 2.5 bar (36 psi)
Front Brakes Expanding brake
Rear Brakes Expanding brake
Wheels Cast aluminium alloy rims
Dimensions & Weight
Weight incl. 150.0 kg (330.7 pounds)
Fuel Capacity 10.50 litres (2.77 US gallons)
Oil Capacity 1.70 litres (1.80 US quarts)
Service & Fluids
Engine Oil SAE 10W-40 Synthetic 4T (API SL/SN / JASO MA2)
Brake Fluid DOT 4
Spark Plugs NGK CR8E / CR9E /CR9EH-9
Battery 12V 10Ah / 12Ah (YTX9-BS / YTX12-BS / YT12A-BS)
Other
Starter Electric
Electrical 12V 10Ah / 12Ah (YTX9-BS / YTX12-BS / YT12A-BS)
More from SVM
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏍️
Best For
General Purpose
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