User Manual

7
Specifications and Technical Data
Item Unit G260PU G260PUM G260PUH G231PUM G231PUH
Type — Air cooled Water cooled Air cooled Water cooled Air cooled
Bore x Stroke mm 34 x 28
ë ë
32 x 28
ë
Displacement cm
2
25.4
ë ë
22.5
ë
Effective Compression
Ratio
— 8.4
ë ë ë ë
Carburetor
Type (Walbro) WT-645 WT-644 WT-677 WT-644 WT-677
Venturi (mm) 12.7
ë ë ë ë
Air Cleaner — — — Dry Type — Dry Type
Starting —
Hand Flipping or
Electric Motor
Recoil Starter
ë ë ë
Ignition
Type CDI
ë ë ë ë
BTDC/rpm 28/7000 30/7000
ë ë ë
Spark Plug
STD RZ7C
ë ë ë ë
Option — CMR8H/7H — CMR6H/7H —
Idle Speed rpm 1800 APC 18 x 8 3500 3000 3500 3000
Max. Power rpm 1.62/12000 2.16/12000 1.71/13000 2.09/12000 1.58/13000
Min. Torque rpm 1.48/9000 1.94/9500 1.42/9500 1.79/10000 1.34/9000
Fuel Consumption cc 790 710 760 720 700
Weight kg 1.69 (*1.52) 1.54 1.77 (*1.57) 1.55 1.78 (*1.58)
Maintenance Specifications
Item (mm) Standard Limit Standard Limit
Measuring
Device
Remarks
Cylinder Bore ø34 Plating Damaged ø32 Plating Damaged Eye Checking
Piston
Diameter ø33.97 ø33.87 ø31.97 ø31.87 Micro Meter
At the skirt end
and the right angle
to the piston pin
Piston Ring Groove Width 1.01 1.11 1.01 1.11 Thickness Gauge
Piston Ring Hole ø8.01 ø8.05 ø8.01 ø8.05 Cylinder Gauge
Clearance between Piston
and Cylinder
0.03–0.05 0.15 0.03–0.05 0.15
Micro Meter
Cylinder Gauge
Clearance between Groove
and Piston Ring
0.02–0.04 0.1 0.02–0.04 0.1 Thickness Gauge
Piston
Ring
End Gap 0.05–0.25 0.5 0.05–0.25 0.5 Thickness Gauge
When inserted in
a new cylinder
Width 0.98 0.93 0.98 0.93 Micro Meter
Piston Pin Diameter (mm) ø8 ø7.98 ø8 ø7.98 Micro Meter
Connecting Rod. Small end (mm) ø11 ø11.05 ø11 ø11.05 Cylinder Gauge
Crankshaft Diameter At main bearing (mm) ø12 ø11.98 ø12 ø11.98 Micro Meter
Eccentricity — 0.07 — 0.07 Dial Gauge
Axial Play — 0.5 — 0.5 Thickness Gauge
Main Bearing —
Gritty or
Flat Spot
—
Gritty or
Flat Spot
— —