ASP FS180 29.6cc 4-stroke Engine for Nitro RC Planes

FEATURES:
Dual ball bearing-supported crankshaft
Choke system for easy starting
CNC precision machining
Steel cylinder liner and ringed piston for long life
Rear-mounted updraft two needle valve carburetor
Muffler and header, and three allen wrenches.
REQUIRES:
Glow Plug: Hot heat range specifically designed for Four-Stroke
engines,can use O.S. type-F plug.
Fuel: Break-in 10% nitro & at least 18% castor/synthetic lubricant,
5%-30% nitro & 16%-11% castor or synthetic lubricant after break-in
Propeller: Break-in 16x8, 16x6-18x6 after break-in

SPECS:
Weight: 36.08oz (1023 grams) w/o muffler
Weight: 39.15oz (1110 grams) with muffler
Bore: 1.417" (36mm)
Stroke: .866" (22mm)
Displacement: 1.8 cu in (29.52cc)
Practical RPM: 1,800-10,000
Crankshaft Thread Size: 3/8-24
Exhaust Pipe Thread Size: M14x0.75
High Speed Needle Setting: 2½ turns OUT from closed
Low Speed Needle Setting: 2 turns OUT from closed after break-in

Distance Between Mounting Holes Same Side: 1" (25.4mm)
Distance Between Mounting Holes Opposite Side: 2.7" (68mm)
Height/Crankcase Bottom to Top of Rocker Cover: 5.7" (145mm)
Height/Mounting Tab Bottom to Top of Rocker Cover: 4.9" (125mm)
Length from Backplate to Prop Washer: 4.2" (107mm)
Length from Carburetor to Prop Washer: 5.1" (130mm)
Width Including Mounting Tabs: 2.7" (68mm)
Width of Crankcase Below Mounting Tabs: 1.8" (46mm)

COMMENTS:
Some differences between two and four-stroke engines:

1. Four-strokes are quieter
2. Four-strokes get better fuel economy
3. Four-strokes generate more torque and will swing a larger prop
4. Four-strokes have a more realistic sound

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