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Trimmers & Brushcutters
Specifications
SRM-225U Specifications
Physical Dimensions
| Specification | Value |
|---|---|
| Length (without cutter head) | 1,783 mm (70.2 in.) |
| Width | 687 mm (27 in.) |
| Height | 497 mm (19.6 in.) |
| Weight - Dry (without cutter head) | 5.2 kg (11.5 lb.) |
Engine
| Specification | Value |
|---|---|
| Type | Air-cooled, two-stroke, single-cylinder gasoline engine |
| Bore | 32.2 mm (1.27 in.) |
| Stroke | 26.0 mm (1.02 in.) |
| Displacement | 21.2 cc (1.29 in³) |
Exhaust System
| Specification | Value |
|---|---|
| Exhaust | Spark arrester muffler or spark arrester muffler with catalyst |
Fuel & Lubrication
| Specification | Value |
|---|---|
| Carburetor | Diaphragm with purge pump |
| Ignition System | Flywheel magneto, capacitor discharge ignition type |
| Spark Plug | NGK BPM8Y (BPMR8Y in Canada) - Gap 0.65 mm (0.026 in.) |
| Fuel Type | Mixed (gasoline and two-stroke oil) |
| Gasoline/Oil Ratio | 50:1 |
| Gasoline | Use 89 octane unleaded. Do not use fuel containing methyl alcohol, more than 10% ethyl alcohol, or 15% MTBE. Do not use alternative fuels such as E20 or E85. |
| Oil | ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345-FD, two-stroke, air-cooled engine oil. |
| Fuel Tank Capacity | 0.38 L (12.8 US fl. oz.) |
Starter & Clutch System
| Specification | Value |
|---|---|
| Starter System | Automatic rewind starter |
| Clutch | Centrifugal type |
Shaft & Transmission
| Specification | Value |
|---|---|
| Vibration Isolated System | Rubber cushion on engine mount |
| Operating Rod | 25.0 mm (1.0 in.) diameter aluminum tube |
| Drive Shaft | 6.0 mm (0.24 in.) flexible shaft |
| Gear Case Ratio | 1.62:1 |
| Rotating Direction | Counterclockwise (viewed from top) |
Cutter Head
| Specification | Value |
|---|---|
| Type | Speed Feed® 400 LH Nylon line head, line capacity 6.0 m (20 ft.) |
Handle & Accessories
| Specification | Value |
|---|---|
| Handle | U-handle |
Performance
| Specification | Value |
|---|---|
| Idle Speed | 3,000 RPM |
| Clutch Engagement Speed | 4,300 RPM |
| Wide Open Throttle Speed | 10,000 RPM |