Mobile Emergency Generator Repair & Service in Great Falls, MT
Portable generator won't start, surges, or has no power output? We provide on-site repair and voltage regulator servicing to secure your backup power.
About Our Generator Repair & Maintenance
In Montana, severe storms, high winds, and winter blizzards can take down the power grid for hours or days. A backup generator is a lifeline—but only if it runs when the power goes out. If your portable generator has been sitting with stale gas, refuses to start, or runs but isn't producing electricity, Flying Wrench will fix it on-site. We service carburetors, replace ignition coils, test automatic voltage regulators (AVR), adjust valve clearances, and clean carbon deposits, ensuring your household stays safe and warm during any blackout.
Specialized Work We Handle:
- Automatic Voltage Regulator AVR Service
- Engine Governor Throttle Tunes
- Spark Arrester Carbon Cleaning
- Stator & Rotor Diagnostic Checks
- Outlets Load & Voltage Testing
- Fuel Solenoid Replacement Work
Why Choose Flying Wrench for Generator Repair & Maintenance?
Priority Dispatch During Impending Montana Storms
We travel directly to your home, farm, or business to perform diagnostic and mechanical repairs on-site.
Expert Voltage Regulator (AVR) & Electrical Testing On-Site
Certified mechanical technicians with full county licensure and WCB liability coverage.
Servicing Generac, Honda, Champion, Westinghouse & Briggs
Clean, upfront diagnosis and written quote estimate options before a single bolt is turned.
Keep Your Freezer, Heater, and Medical Devices Running
Locally stationed out of Great Falls, MT, ensuring the fastest scheduling for your tools.
Request A Free Quote
Fill out the form below or call us for same-day mobile service.
SERVICE DEPLOYMENT WORKFLOW
What you can expect when you hire Flying Wrench for your generator repair & maintenance needs.
Step 1: Emergency Power Dispatch
If a storm is forecasted or a blackout is active, we prioritize generator repairs to restore your backup electricity.
Step 2: Fuel System Purge
We drain gummy, stale gasoline from the tank, blow out clogged fuel lines, and clean the carburetor jets.
Step 3: Electrical Load Testing
We check the stator and rotor coils, test output receptacles, and verify the generator produces clean, correct voltage.
Step 4: Governor Calibration
We adjust the throttle linkage and governor spring to ensure the engine runs at exactly 3600 RPM for stable 60Hz power.
Generator Repair & Maintenance Frequently Asked Questions
Common questions about our generator repair & maintenance service in Great Falls, MT.
This is often caused by a failed Automatic Voltage Regulator (AVR), worn brushes, or a lost residual magnetic field in the generator's rotor. We carry diagnostic equipment and replacement AVRs on our trucks.
We recommend running your generator under a light electrical load (such as a space heater) for 15 to 20 minutes once a month. This keeps the carburetor fresh and maintains the rotor's magnetic field.
Only if you treat it with a high-quality stabilizer and run the engine regularly. Otherwise, we recommend shutting off the fuel valve and running the carburetor completely dry before storage.