New Chung Yang Engine F-230, F270

Chung Yang Releases 2 New Engines

F-230 & F-270

F-230 Four Bolt

New Chung Yang F230 4 Bolt Base Engine Specs

Received new Sample Engine and Photographed today.  CY is also making a 27cc version with a 35mm Bore and 28mm Stroke.  Specs below are for the 22cc.  Engines are called, F-230 & F270.  They were made to compete with the Komatsu/ Zenoahs in that size category.

Note: Compare 2 bolt 23cc to indicated in bold print to new F-230

F 230 New Version Engine:
1) 4-Bolts Crankcase
2) 4-Bolts Cylinder
3) New Piston
4) Powerful Clutch Spring
5) Lighter Clutch Shoes
6) Big Muffler
7) Star shape bolts

F – 230 Specification
Model (2 Cycle Gasoline Engine) F-230 (New) R-230
Cooling Type Air Cooled
Displacement cc 22.5
Bore mm 32
Stroke mm 28

Note: Also available F273 with 34mm Bore & 30MM Stroke

Max. Power PS / rpm 2.5/ 13,500 2 Two Bolt 23 2.2 / 11500
Max. Torque kg-m / rpm 0.154 / 10,000 Two Bolt 23 0.145 / 9500
Min. Fuel Consumption g/PS . H 500 Two Bolt 23 550
Max. rpm at no load rpm
Compression Ratio 9.5 Two Bolt 23 9.2
Fuel Recommend Pre-mixed (25 Gasoline : 1 Engine Oil)
Oil Recommend FC grade 2 Cycle engine oil
Ignition Type TDI
Carburetor WT-668
Spark Plug Std. NGK: CMR7H
Starter Recoil
In rpm 8,000 5900
Clutch
Stall rpm 10,500 Two Bolt 23 8000
Length mm 158 Two Bolt 23 168
Overall Size Width mm 240 Two Bolt 23 150
Height 199 Two Bolt 23 197
Weight kg. 2.24  Two Bolt 23 2.56