GX390 Generator Dual Fuel Carburetor LPG CNG Conversion kit for 4.5-5.5KW GX 390 188F 13HP Engine Motor Water Pump Chanpiom100153 100165 100296 100155 100230 100297 Generator

The dual fuel kit was a direct fit for my champion 7500watts 439cc generator and it works great. Hope that helps pics attached. The fitting at the bottom for the gas input is screwed on 1/4 npt, it’s not a press fitting but it has some glue/sealant on it I took the gas regulator apart and heated the fitting with a heat gun and made some adjustments as to where I needed to point for the hose not to hit the tire I used fuel line hose and a 3/4 inch quick connect kit to make it so that I can connect and disconnect hose from generator with ease and switch between gas and propane. worked out great. Hope that helps

It works... okay... as long as you have an electric starter. I've found pull starting on propane is basically impossible. Up front, I'll admit there's a 50/50 chance it's user error and I have an adjustment off (but how would I know? there are no instructions included!), but I've fiddled with the screws and it doesn't seem to change anything related to starting.Helpfully, there is a "push button" with a spring on the large regulator that will "prime" the carburetor (it just allows propane vapor directly into the carb without vacuum) - I've found that holding this in WHILE cranking the starter for 5 seconds makes it easier, but it always takes a few tries to get it going, with or without choke. Once running, it works great. I haven't fully load tested it but it should easily serve my purposes.The carburetor otherwise works just fine on gasoline - I can often pull start in one attempt. But, the gas tank is off the generator and probably won't return, so that aspect is basically irrelevant to me. The reason I want propane at all is because when I need the generator I'm either out of gas or the gas in the tank has gone bad. Propane stores forever.Install on the Generac GP7500E: I didn't need to use either of the plastic "spacer" plates and only used two of the gaskets for my application. I found the choke lever very confusing until I realized the tiny pin is metal - it's much stronger than it looks to my old eyes. Also worth noting that, like the other reviewer, I wanted to replace the inlet barb elbow fitting on the bottom with a 3/8 male flare so I could easily connect an off-the-shelf barbeque regulator and hose, but alas, either mine was different than his or I did something wrong (I wasn't willing to use a heat gun like he says he did). I was able to turn the elbow with a wrench with real effort, but it just spun in the housing. A little bit of white dried glue-ish looking stuff crumbled out from the joint, so I'm hoping I didn't ruin a seal, but the pressure is so low (about 1/3 psi) coming from the tank's regulator that I think it's fine since it will only be pressurized while in use. The attached photo shows the hack job I did with some clear flexible PVC tubing and some hose clamps because I wasn't willing to cut my propane line. I really wish that barb elbow was threaded in/removable!Overall, it does the job, so 4 stars, but it's also forced me to finally replace the generator's battery and failed starter relay since I've been getting away with pull starting for years on gasoline. Perhaps I'll figure out how to tune it better so I can pull start, in which case I'll return and describe what I did. Good luck everyone!

Never got a hold of the seller , I tried just got a stupid computer to try to talk to.

The gasoline carburetor and propane regulator are separate units on the Champion 100296. For this generator look for those carbs compatible with part number huayi P28-4-H.

As descriped, Easy to install and working well

Wasnt a direct fit as the propane part is turned 90 degrees and makes it impossible to install without removing the gas vent cylinder . I did put it on relocating the cylinder and its a tight fit for the propane inlet nozzle as its right behind the wheel. the generator does run on propane now so I'm happy with I guess. Also I had to use a different propane line as the one on the generator doesnt reach . I may change that out as I would like the option of using the generator as it was meant to be used with the switch from gasoline to propane . Was used on a Champion 9000w.

Installation was perfect and very easy to do. Now I can use LPG bottles on my generator and safe fuel money.

Took a while to figure out I needed a regulator on my tank, but after that it works good on gas or propane