Chung Yang R460 46CC Air-cooled Advance Gasoline Engine

Description

Chung Yang Industries R460 46CC air cooled Advanced gasoline engine.
Chung Yang GP460 aka R460 or CY460) is a 45.7cc (42mm bore, 33mm stroke) performance machine. It features a 4 transfer port 42mm cylinder, high-performance case pulsed Walbro HDA-223 carburetor (19mm bore, 15.08mm venturi, independent high and low jets) "hemi"-style combustion chamber, and full-circle crankshaft. The combustion chamber clearances have been improved for better thermal control, resulting in more uniform thermal expansion characteristics and reduced dynamic stress at high operating RPMs! Includes 78mm three-shoe inner clutch assembly preinstalled.
For Scooters: Stock engine on Trail Ripper GTR46, Super Go-Quad 46, SGSR46R, Trail Ripper Quad, and RIOT.
For R/C: Does not fit most R/C applications. Must be adapted.
Engine Stats: Displacement: 45.7cc. Power: 4.2+HP @11,000 RPM, 2.35 lb/ft torque @8,000 RPM. Fuel: 91 octane or higher mixed 25:1 with 2-stroke oil.

Note: The GP460 engine with the yellow 5.7K clutch also comes with the Go-Ped style kill switch wire for use with the Go-Ped throttle cable.

Carb settings to begin tuning:
1 1/2 turns out (L)
1 3/4 turns out (H)

Specifications:
Model R460
Cooling Type Air Cooled
Displacementï¼ˆc.c.ï¼‰ 45.7
Bore(ãŽœï¼‰ 42
Stroke(mm) 33
Max Powerï¼ˆPS/rpmï¼‰ 4.3/11000
Max Torqueï¼ˆkg-m/rpmï¼‰ 0.322/9000
Min. Fuel Consumptionï¼ˆg/PS.Hï¼‰ 350
Max RPM at No Loadï¼ˆrpmï¼‰ 18000
Compression Ratio 9.2
Fuel Recommend over 95
Oil Recommend FC Grade 2-Stroke engine oil
Mixture Ratio Pre-Mixedï¼ˆ 25ï¼š1)
Ignition Type TDI
Carburetor Walbro HDA-223
Spark Plug NGK:CMR7H
Starter Recoil Recoil
Overall Sizeï¼ˆL*W*Hï¼‰ãŽœ 168Ã—150Ã—197