Ethanol-blended fuels degrade older fuel lines. The updated diagram specifies Tygon F-4040-A line, not the original black rubber.
| Component | Updated OEM Part # | Length | |-----------|--------------------|--------| | Fuel Tank | 2670-15120 | - | | Fuel Line (suction) | 2670-15231 | 180mm | | Fuel Line (return) | 2670-15232 | 140mm | | Fuel Filter (felt) | 2670-15210 | - | | Vent Hose | 2670-15260 | 80mm |
Based on repair shop data, these five parts fail most often on the BCZ260TS. Always use the updated number:
Technicians can use the updated parts diagram to solve common issues:
| Issue | Diagram Section to Inspect | Specific Parts to Check | | :--- | :--- | :--- | | Hard Starting | Fuel System & Air Intake | Fuel Filter (#17), Fuel Lines, Carburetor Diaphragm kit. | | No Spark | Ignition | Ignition Coil (#5), Stop Switch (#18). | | Smokes Excessively | Cylinder & Muffler | Check Piston/Rings for scoring; Muffler Spark Arrester clogging. | | Head Won't Spin | Clutch & Gear Case | Clutch Shoes (worn), Clutch Spring (stretched), Gear Head Grease. |