Friday, June 12, 2009

Honda Generator Storage - Prevent Plugged Carburetor

I purchased a nice Honda generator. I had filled it up with gas and tried it out. I followed the manual which came with the generator to put it away until I needed it. The manual said to drain the sediment cup at the bottom of the fuel shut off valve and drain the carburetor float bowl. It shows a diagram to remove the needle valve and the fuel will drain out.

There are extra steps to prevent the fuel that is trapped in the bowl from gunking up.

1). Drain the sediment cup at the fuel shut off valve (don’t forget to turn the fuel to the off position first).

2). Remember to hold a container under the valve to catch the fuel that will be in there.

3). Remove the needle valve from the bottom of the carburetor float bowl.

4). This is not a valve which you adjust to speed up or slow down the idle. It simply is removed then later reinstalled until snug. Do not over tighten. Notice the valve now removed sitting on the black frame piece beside the bar code on the can. It does have an O-ring on it and is small and easily lost so be careful. You can’t run your generator without it.

5). This is the missing and most important part. With the valve removed, pull out the choke and then try to start the generator with a couple of pulls on the cord (or a few cranks with the electric start). It may actually try to run but will die immediately. The next pic shows the remaining gas that comes out. It is this gas which, if left in place evaporates and dries up plugging the idle valve creating a problem.


  1. This info is absolutely brilliant. Wish they had included that extra bit in the manual.

  2. I have good luck just running the engine with the fuel valve shut till the engine stalls.Then every 3-6 months run the engine long enough to get to operating temperature then shut the fuel valve and run the carb dry again. Drain and replace fuel every year . store unit in a constant temperature to prevent condensation from forming inside and outside of the unit.