Echo SRM‑225 straight-shaft gas string trimmer

📌 Engine & Power
Engine Type: Air-cooled, two-stroke, single-cylinder gasoline engine
Displacement: 21.2 cc (1.29 in³)
Bore × Stroke: 32.2 mm × 26.0 mm
Ignition: Flywheel magneto, capacitor discharge
Carburetor: Diaphragm with purge pump
Spark Plug: NGK BPM8Y (Gap 0.65 mm)
Fuel: Unleaded gasoline mixed with two-stroke oil (50:1 ratio)
Fuel Tank Capacity: ~0.38 L (12.8 fl oz)
🛠️ Drive & Cutting
Drive Shaft: 4-layer cable type
Shaft Type & Length: Straight, ~59 in (150 cm)
Cutting Head: Speed-Feed® 400 bump head
Cutting Swath: ~17 in
Line Diameter: ~0.095 in Cross-Fire®
⚙️ Starter & Operation
Starting System: i-30™ reduced-effort starter
Clutch: Centrifugal type
Vibration Reduction: Rubber cushion on engine mount
Idle Speed: 3 000 RPM
Wide Open Throttle (W.O.T.) Speed: 10 000 RPM
📏 Dimensions & Weight
Length (without cutter head): ~70.2 in
Width: ~10.1 in
Height: ~13 in
Dry Weight (no cutter head): ~10.4 lb (4.7 kg)
Typical Dry Weight with head & shield: ~11.2 – 11.5 lb
🧰 Other Features
Engine vibration-reduction system for operator comfort
Optional shoulder harness available
Warranty: ~5 yr consumer / 2 yr commercial (varies by dealer)
If you want, I can also compare this model to similar Echo trimmers (e.g., SRM-225i or curved-shaft versions) to help you decide which fits your needs best.