Repair guidesStart with the symptom.
Practical diagnostic paths for outdoor power equipment. No sales advice, bookkeeping, or filler.
What is the machine doing?
Choose the closest complaint. Each guide gives a safe testing order, explains what the result means, and places the technical source beside the steps it supports.
Walk-behind mowerCheck controls, fuel, air, spark, and engine condition in a useful order.
Diagnostic focus- Starter rope and engine rotation
- Operator control and brake system
- Fuel age, flow, venting, and carburetor direction
- Air restriction and plug condition
- Spark, compression, and timing escalation
Next expansionHard-to-pull starter rope, flooded engine, and weak-compression branches.
Open diagnostic guide →Small engineUse when the engine fires but will not continue running.
Diagnostic focus- Dies in seconds versus after warm-up
- Tank vent and continuous fuel supply
- Hot ignition failure
- Choke transition and mixture
- Failure only when the blade is loaded
Next expansionSeparate hot-stall, tank-vent, and blade-engagement diagnostic pages.
Open diagnostic guide →Small engineSeparate maintenance trouble from fuel-delivery and mechanical faults.
Diagnostic focus- Cold, warm, idle, governed-speed, and loaded behavior
- Rich versus lean evidence
- Air leaks and fuel restriction
- Governor linkage versus mixture hunting
- Ignition breakdown and mechanical escalation
Next expansionDedicated rich-running, lean-surge, and governor-hunting guides.
Open diagnostic guide →Mower deckStart with the pattern in the grass, then inspect the deck and blade system.
Diagnostic focus- Low stripe, ragged tips, missed grass, and clumping
- Wheel height and tire pressure
- Blade damage, balance, and installation
- Deck buildup, airflow, and discharge
- Spindle, adapter, belt, and mounting faults
Next expansionIndividual guides for vibration, uneven cut patterns, and self-propel drive loss.
Open diagnostic guide →Riding mowerSeparate battery and cable trouble from control, interlock, and starter faults.
Diagnostic focus- Silent, single-click, repeated-click, and slow-crank branches
- Battery load and cable voltage drop
- Brake, neutral, PTO, and operator controls
- Fuse, key switch, relay, and solenoid command
- Starter load and engine rotation
Next expansionPTO-will-not-engage, battery-will-not-charge, and cranks-but-will-not-start guides.
Open diagnostic guide →Battery mowerFor a mower that is dead, flashes an error, or stops while cutting.
Diagnostic focus- Approved battery and charger compatibility
- Start sequence and safety key
- Blade obstruction and motor overload
- Battery, controller, and motor temperature
- Contact condition and model-specific fault indicators
Next expansionCharger fault, battery-under-load, and platform-specific error-code guides.
Open diagnostic guide →Portable generatorA no-start checklist with carbon-monoxide safety at the front of the job.
Diagnostic focus- Gasoline, propane, and natural-gas selection
- Fuel valve, choke, switch, and unloaded starting
- Low-oil shutdown and engine position
- Spark plug and airflow
- Electric-start battery versus engine no-start
Next expansionEngine-runs/no-output, unstable voltage, overload-trip, and inverter-fault guides.
Open diagnostic guide →Pressure washerRule out supply and nozzle problems before blaming the pump.
Diagnostic focus- Low from startup versus pressure lost during use
- Supply flow, inlet restriction, and trapped air
- Nozzle selection and blockage
- Gun, wand, hose, fitting, and leak checks
- Engine speed, pulsation, unloader, valve, and seal direction
Next expansionPump pulsation, detergent-will-not-draw, and pressure-drops-after-warm-up guides.
Open diagnostic guide → 