Product Description:

TECNICAL DATA:

• Single Cylinder two stroke air or liquid cooled
• Total displacement: 172,5 cc
• Bore: 65 mm
• Stroke: 52 mm
• Compression ratio: 11:1
• Maximum RPM: 7,550
• Power: 25 HP at 7,550 RPM
• Piston: light alloy with two beveled cast iron, chromium plated rings
• Cylinder: light silicon alloy with Cermetal protective coating
• Cylinder head: die cast light alloy with high percentage of silicon
• Crankcase: molten in S.G-Al Si 5 UNI 3600 alloy
• Connecting rod: copper plated steel 18Ni Cr Mo 5 with high speed silver-plated roller bearings
• Carburetor: Walbro WB 32
  Fuel delivery to the cylinder: four blade reed-valve system connected to the crankcase
• Ignition: built in very powerful electronic ignition system with double spark per stroke for better combustion and safety
• Minimum starting RPM: 60
• Alternator output at 4,000 RPM: 14,6 V 8 A
• Spark plug type: NGK B8ES (for normal or hot climate) and NGK B7ES for cold climate
• Reduction: anodized pulleys with Poly "V" belt from 1:1,8 to 1:2,6 or more, depending on the propeller type
• Continuous operating temperature 350-400 degrees F
• Fuel: premium only
• Oil: fully synthetic at 2,5% during run-in and 2% for normal use
• Fuel consumption: from 2,5 to 4,5 liters/hour depending on the propeller size, reduction, load and altitude
• Engine mounting: by 5 (five) shock absorbing rubber mounts
• Propeller rotation: counterclockwise
• Engine weight without exhaust: air cooled version 13 Kg (28 Lb), liquid cooled version 14 Kg (30 Lb) and magnesium version 12 Kg (26 Lb)

Final notes:
The engine comes complete with electric starter, electronic ignition system, alternator with rectifier, five rubber mounts, Walbro WB 37 C carburetor and complete tuned exhaust with muffler.