Chung Yang / Zenoah -
Technical Data

Specification and technical data G230 and G260

Modell Zenoah			Zenoah G230RC	Zenoah G260RC
Typ			2 stroke	2 stroke
Cooling			air cooling	air cooling
Bore x Stroke mm			32 x 28	34 x 28
Displacement			22,5ccm	25,4ccm
Max. Power	No load	PS (kW)	2.90 (2.15)	3.0 (2.20)
		rpm	19.500	19.500
Max. Torque	No load	N.m/rpm	1.79/10.000	1.87/10.000
Fuel			25:1 Gas / Oil	25:1 Gas / Oil
Oil			Two Stroke Oil Castrol	Two Stroke Oil Castrol
Carburetor			Walbro Wt-603	Walbro Wt-603
Ignition			TCI	TCI
Spark Plug	Standard		Champion RZ7C	Champion RZ7C
Spark Plug	For Race		NGK CMR7H	NGK CMR7H
Spark Plug	Hot Typ		NGK CR7HIX IRIDIUM	NGK CR7HIX IRIDIUM
Starter			Pullstarter	Pullstarter
Air Filter			dry	dry
Overall Sice		Length (mm)	167	167
		Breadth (mm)	204	204
		Height (mm)	195	195
Weight			2,07Kg	2,07Kg
Carburetor standard setting		H=	1 3/4 ± 1/4	1 3/4 ± 1/4
		L=	1 1/2 ± 1/4	1 1/2 ± 1/4

Water Cooled Models

Model			Zenoah G231PUM	Zenoah G260PUM	Chung Yang CY26
Type			2 cycle piston valve type gasoline engine	2 cycle piston valve type gasoline engine	2 cycle piston valve type gasoline engine
Cooling System			Water Cooled	Water Cooled	Water Cooled
Bore x Stroke (mm)			1-32 x 28	1-34 x 28	34 x 28
Displacement (cc)			22,9cc	25,9cc	25,4cc
Maximum Output	Net	ps (kw)	-	-
	Gross	ps (kw)	3.1 (2.28) / 12.000rpm	3.25 (2.32) / 12.500rpm	4,0 (2,94) / 15.500rpm
Maximum Torque	Net	kg-m	-	-	-
	Gross	kg-m	0.19	0.21	-
Rotation Direction			Counter-crockwise	Counter-crockwise	Counter-crockwise
			(viewed from PTO shaft)	(viewed from PTO shaft)	(viewed from PTO shaft)
Fuel			Pre-mixed Fuel, 25 (Gasoline) : 1 (High grade 2 cycle engine oil)	Pre-mixed Fuel, 25 (Gasoline) : 1 (High grade 2 cycle engine oil)	Pre-mixed Fuel, 25 (Gasoline) : 1 (High grade 2 cycle engine oil)
Carb adjusting			H= 1 5/8 ± 1/4 L= 1 ± 1/4	H= 1 5/8 ± 1/4 L= 1 ± 1/4	H= 1 5/8 ± 1/4 L= 1 ± 1/4
Oil			High-grade 2 cycle engine oil Castrol	High-grade 2 cycle engine oil Castrol	High-grade 2 cycle engine oil Castrol
Carburetor			Diaphragm, butterfly valve type Walbro WT-644	Diaphragm, butterfly valve type Walbro WT-644	Diaphragm, butterfly valve type Walbro WT-771
Ignition			CDI	CDI	CDI
Spark Plug			RZ7C	RZ7C	NGK CMR7H
Starter			Recoil starter	Recoil starter	Recoil starter
Air Cleaner Type			-	-	-
Overall Dimension	Length (mm)		142	142	175
	Width (mm)		160	160	155
	Height (mm)		181	181	203
Dry Weight			1.55Kg	1.54Kg	1,70Kg