Here at Genpower, we take note of some of the most common mistakes that people make with our generators. This allows us to inform you about them to prevent you from making the same mistakes, meaning that your generator will last longer and perform a lot better!
One of the most easy and common mistakes made, in relation to suitcase camping inverter generators, occurs when people store their inverter generators for long periods of time (problems can occur in as little as two weeks) and leave the old fuel in the machine. This may cause starting problems next time you use your generator. Modern unleaded petrol has changed and is not as long-lasting as it once was. If petrol is left in the generators carburettor, then over a short space of time, it will start to deteriorate, go waxy and loose it’s combustion properties, making it difficult to start the generator. Eventually it can clog up the main jet or the emulsion tube which will also prevent the generator from starting. When this happens, the generator will not fire when attempting to start it. There is a simple fix if you know how. This involves draining the float bowl and cleaning the carburettor.
Draining the Float Bowl
The majority of the time, the problem can be solved by just draining the old stale fuel in the carburettor float bowl, if this fails, then the carburettor jets should be cleaned. To drain the float bowl, remove the 10mm head bolt (some machines may have a flat screw head) at the bottom of the float bowl, mounted at an angle (not the one in the centre, which is the float bowl locating bolt). The petrol in the float bowl (about 20cc) will flow out, replace the drain bolt, prime the carburettor about 30 to 40 pumps with the primer bulb (HY1000Si does not have a primer bulb, so pull start the recoil starter about 20 times) to refill the float bowl and try to start your generator, if it still does not start you need to clean the carburettor.
Cleaning the carburettor
This takes a few minutes and will also save you the cost of sending the generator back here to us at Genpower to fix something you could have easily done yourself if you knew how. Cleaning the carburettor isn’t a hard job, but it is inconvenient, so here we are offering some handy hints and tips to get you going in the right direction.
Firstly, remove the side access panel, then proceed as follows:
- Remove the float bowl retaining bolt (A) (this is right in the centre of the bowl and not to be confused with the drain bolt which is offset) and float bowl (B). Pic 1
- Remove the float pivot pin (B) and float (A). Pic 2
- Unscrew the main jet and remove the emulsion tube. Pic 3
- Blow out main jet and emulsion tube with an airline. Also blow out the hole where these were removed from and the hole from which the float valve was seated.
- Reassembly is the reverse of the above.
A. Float bowl retaining bolt
B. Float Bowl
C. Air filter
D. Fuel tank
F. Fuel primer pump
G. Fuel filter
- Float pivot pin
Remove the main jet and emulsion tube with a flat screwdriver. Take care not to drop these jets. Blow these jets out with an airline to ensure they are clean. (The emulsion tube is a long tube located above the main jet).
Blow the main jet and emulsion tube casing out with an air line. Also blow out the hole where the float valve sits.
If your machine is left for more than a month, drain the petrol from the carburettor by either running the machine dry of petrol or releasing the petrol by loosening the float bowl drain screw.
So there it is- how to clean your carburettor jets on your Hyundai inverter generator with ease! Not difficult, but there are probably better things you could be doing with your time. If this is something you don’t fancy doing yourself, there are two things you can do to prevent stale petrol causing problem:
1. Make sure you drain the engine of all fuel, either by physically draining it or letting it run dry. If you are leaving the machine over the winter, it is recommended to empty the fuel tank and the carburettor, if just for a month or so, just drain the carburettor. This can be done by switching the fuel off and letting the machine run until it stops.
2. Use a fuel stabiliser which can give fuel a longer life, often between 1-2 years.
We hope this helps and you enjoy your Hyundai Inverter Generator!