Disconnect Fuel System and Remove Throttle Body
At 10:11 in
Dumbest Mistake Anyone Could Make With a $2000 Chainsaw! RUINED in an INSTANT!
What happens here
Cliff continues the disassembly by carefully disconnecting the fuel lines and associated electrical wiring from the throttle body. He explains that since this chainsaw is a modern, fuel-injected model, it utilizes a throttle body with an integrated injector rather than a traditional carburetor. He highlights the complex interplay between the engine's coil, flywheel, and a miniature computer chip board that collectively power and control the fuel injection system. After all connections are severed, he removes the entire throttle body unit, which houses the fuel injector, thereby exposing the intake manifold and other critical internal engine components.
Goal: Separate the fuel delivery system from the main engine block to prepare for further inspection.
Tools and materials
- Coil — Part of the ignition system that generates sparks
- Computer Chip Board — The electronic control unit for fuel injection
- Flywheel — Component that helps regulate engine speed and works with the coil for ignition
- Fuel Lines — Components disconnected from the throttle body
- Safety Gloves — Protecting hands during disassembly
- Screwdriver — Carefully disconnecting various fuel lines and electrical wires
- Stihl MS 500i Chainsaw Stihl — The equipment being worked on
- Throttle Body with Injector — The entire fuel injection assembly, removed to expose the intake manifold
- Wiring — Electrical connections for the fuel injection system