High altitude jet allows your etrailer invertor gas generator to run more efficiently when at an altitude of 6,000 to 8,000 feet above sea level. Works with 80cc engines.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Randy: Hey guys, it's Randy here at etrailer.com. Today we're going to be taking a look the rejetting process for the etrailer.com or FERM e2000 starting lot generators. The reason we need to rejet a generator in some cases is because as we move up in elevation, as we get higher and higher, the air gets thinner. So there's not as much oxygen available. When that happens, we need to reduce the amount of gas that we're sending into the engine, or it tends to overload, stumbles over itself. It also loses some efficiency.
We're looking at about three and a half percent efficiency for every 1,000 feet we go up. What we're going to do is show you how to change this jet out. By changing that jet out, less fuels going to be delivered. So we're going to lean out the engine, help to restore some of that efficiency. There's pros and cons to that.Fuel as it enters an engine, as it's atomized through the car better, it actually cools down.
So it helps to cool the engine slightly. By reducing the amount of fuel that we're sending into it, it's going to run a little bit warmer, but we want it to be as efficient as possible. We get up into those higher altitudes. We still have power needs. By switching this out, it should help to restore the power needs or get us back up closer to what we started with and help the engine run a little bit smoother.
Now, the biggest tip that I have with this is check it first. Ran into a customer the other day I was talking with him and they had done all of this at home before they left and went out on their trip. They got out there and they realized that it was running too lean. It was running too high.It wasn't on a FERM or an etrailer generator. It was a different generator, but they didn't really need to make that adjustment at the elevation they we're going to be at.
They got up there. It was starving for fuel. My recommendation would be to get your jet kit, take it with you on your trip. And if your generator isn't running as efficiently as you want, if it's kind of stumbling, like it's flooding out and not running nice and smooth, then change the jet kit. It's a really simple kit of tools. If you're going to be out on a hunting or a camping trip or hiking trip, something like that, you should have the basic tools that we need here. Basically, we're going to need a Phillips screwdriver and a 10 millimeter socket, a small, pretty thin flat blade screwdriver for the actual jet.And then our jet kit. Of course, we're going to start by taking off our maintenance cover here. You can see this one has five screws. We're going to take those out. Phillips screwdriver here. Right, once we've got the top one out here, just going to tilt this out in a way, and then just lift up, there's a little tab right here. See that guy. Now in this generator our carburetor is going to be located right here, conveniently located right behind this plastic piece that we can't remove. That's not that big of a deal. We're going to get this air box out of the way that's located down here. You see this is the intake tube. This delivers air from the air box where it filters it and runs it into the carburetor where it then mixes the air and fuel together. This is just a rubber hose. It's press fit down into that air box. Just going to lift up on it.Just like that kind of see how that grommet fits in there. So just poke that back towards the back of the generator. That'll be out of our way and take off our screw here, another Phillips, you could also use a 10 millimeter socket on this. You don't want to deal with a screwdriver. I just need to get this out of the way. Be careful your tube there. You don't want to damage that. You can lift and rotate that out. Got our foam element that's going to come out. Then we've got our screw right here and a screw right here we're going to take out or a bolt rather, bolt right here, bolt right here. These are 10 millimeter again.Now the one located on the right here, this one's going to be a little bit shorter. This was the one we just took out of this middle section. So just be sure when you put it back together, this one goes into the actual box. This one goes on the dog ear sticking off. Now. just manipulate that up and out of the way there, like that. Now this tube it's our overflow basically. And it sticks right through a hole here in the bottom of the generator. You can see where it comes out. As we reassemble this, we'll want to be sure that we have that poking out of that hole. So any excess can come out.But now we're back to our 10 millimeter and right here on the bottom, we've got a screw that we're going to take out, and this is the bottom of the carburetor. So this is our fuel bowl. Behind this screw there's also going to be a seal. Let's see, we've got a little residual gas in there. That's pretty common. We even tried to run this as dry as we could. So we shut off the gas and let it run until it died. Started it back up a few times, but you're going to have some gas. I'm going to grab some towels just to put down here and catch that. Just continue to loosen up that screw, you see the bowl starts to get a little bit loose, just bring that straight down, just like that.If we look right here, we'll see our jet. We need to get that back down to there. That's bras, so we want to be careful with it as we do this. If you just get in there and don't have your screwdrivers seated properly, you might do a little damage to it. And we wouldn't have it on hand because when we get back home, we need to put it back in. If we decided to change it. Let me get that pulled out just like that. Now in the kit, you are going to have a rubber gasket. This rubber gasket is going to fit right around where our bowl makes contact. Right around this edge. Now, in most cases, you're not going to need that seal. The only time I would want to change it is if I pulled my bowl down, well, if I had any leaks before this, it's a good idea to change it.But if I pull my bowl down and if I have any residual gasket material on the top edge of the bowl, I'm going to pull that out and put the new one in. If not, it's been doing its job, it's been working properly. There's really no need to do it. We're not going to be changing that out at this point. If you do need to change it, you can just get a little pick, hook onto it, pull that one out and then gently place your new one in. Now, we'll take our new jet, lift up on that bowl and it's just going to get threaded back in where it started. Now we need to be really careful here that we don't cross thread this. It's kind of a tough area to get your fingers in, but just take your time, do it right the first time. So you don't miss anything up.Then once that comes to a stop, we're not going to put a whole lot of force on this, we're going to go, maybe a quarter turn, just under a quarter turn. That should seat it in there properly. We want enough pressure on it to where it's not going to back out. This whole thing is going to be vibrating as the engine's running, but you don't want to over-tighten it, so you can get it back out once we get back down low lands, we can put our other jet back in and get it working that way. Right now with our jet and placed and seated properly. Lets just reverse the process, basically that we did to take it off, start by putting our bowl back on threading in our bolt. You want that screw to face out that's that bowl drain there.Not really over-tightening this, but we do want to get it to where it's seated properly and we've got that gasket compressed on our bowl. All right, clean out any of our spillage there. Take this portion of our air box, you can see this little corner is angled. The rest of them are all a 90. That one's got a little angle there. So we went that to be facing towards us. Something I would recommend, you don't have to, but something I would recommend as well. Both of these are loose. Get this air to back in, because you can kind of push up on it a little bit better.We'll just line up their holes. We'll going to use our longer one. Remember here in the inside, shorter one goes on the outside. Now our filter element will go back in, cover will go back on. For this one we're going to use the bolt that has the Phillips head on it, you remember. Then our maintenance cover. Can't forget about that, we talked about earlier. Gets down like that. We'll just replace these five screws and you will be rejetted and ready for higher altitudes.As you can see guys, quick and easy replacement, I think it's good to have on hand. I wouldn't necessarily change it if I didn't need to. I'd take it with me though. Because if your generator is not running properly, it can lead to issues. Maybe you can't operate the things you wanted to operate. It can't charge the things you wanted to charge and really, it takes you less time to change this and it would to drink a cup of coffee. I'd definitely would have it on hand. That's something that I would use if needed.
Average Customer Rating: 4.0 out of 5 stars (1 Customer Reviews)
High altitude jet allows your etrailer invertor gas generator to run more efficiently when at an altitude of 6,000 to 8,000 feet above sea level. Works with 80cc engines.Only place I could find this for sale. Expensive for what you get but what choice is there.
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