Greetings Mr. Rawles,
I just wanted to pass along a quick reminder to your readers who took the time and expense to buy a backup generator, but haven’t taken the time to periodically test and maintain it. Here in southeastern Virginia, we are still recovering from what was called the “Atlantic Assault” by the hyperventilating reporters on the Weather Channel. To be fair, though, this was indeed a whopper of a Nor’easter that gave us flooding only a foot or so less than Hurricane Isabel in 2003. We lost power the evening of November 12, but luckily got it back 29 hours later even though we were told to expect several more days of grid-down living. But here’s the kicker: on my street, only two of the four houses with generators could get them started. Of three other friends I checked with after the storm, there was one other [like me] that could not start his generator. So what’s going on?
As many boaters unfortunately have also discovered, infrequently used engines are suffering significant damage to their carburetors from the ethanol in our gasoline supply. Extra precautions to completely drain fuel tanks, fuel lines, and carburetor float bowls are absolutely essential before putting the generator away for storage. Ask me how I know…
I was also guilty of insufficient testing and maintenance, but I discovered my mistake well before this storm. In early June I pulled my generator out for its yearly testing at the beginning of hurricane season. Yes, I know. Testing my backup power source only once per year was pretty stupid. Anyway, no amount of cord-pulling or carburetor cleaning would induce my generator to start. The gasoline had stabilizer in it, and even draining the old gas and using fresh didn’t help. I eventually got tired of messing with it, and I bought a replacement carburetor via eBay for $70. After installing the new carburetor, along with a new in-line fuel filter from the marine parts store, the generator started on the second pull and ran like new.
I now have a standard monthly testing cycle for my generator that runs it under load for about half an hour. I also have a standard routine for servicing my generator after each use. This routine includes draining the fuel tank, pulling and draining the fuel lines, and fully draining the float bowl of the carburetor. I even leave the lid off the fuel tank for a few hours — in a well-ventilated space — to let it completely air dry. And I also have a new schedule for changing the engine oil. During heavy use, I change the oil every once three days (about 50 hours) of operation. Otherwise, I just change it once per year. Remember that oil is cheap and it’s the life-blood of a small air-cooled engine.
So my generator was one of the ones that worked during the recent storm, and I was able to run 12-gauge extension cords to two of my neighbors to keep their refrigerators running, too. It was nice to be in the position of being able to help others rather than needing help myself. I hope your readers can learn from my mistakes and how I corrected them. – Mike in Virginia