Predator 68530 8750w Propane/Natural Gas Tri-Fuel Conversion Kit

So, I haven't tried running this yet but we'll start with the install.BRAND NEW Predator 8750 Inverter generator going to be used for whole house generator in times of need (we have lots of trees blow down and power is out for days sometimes). The plan is to run it off my two 500# propane tanks I have in the yard instead of using gasoline.The adapter on the inlet side of the carburetor: VERY easy to install, however, after removing the steel sleeves in the airbox, the barrel nuts they give you are ridiculously short and B-A-R-E-L-Y catch a thread to pull the airbox back on. My airbox also has an M3 screw in the bottom that is rendered useless (although it is stiff enough to not be needed). I had to file down the plastic on the inside airbox hole to even get the barrel nut to start. But I did get both of them tight and probably 1 1/2 - 2 threads engagement....which in my opinion is barely enough.The hose to the adapter - This seems very large for supplying only a 10HP engine (3/8" ID) with enough propane and after reinstalling my airbox, there's no way to get the hose and the clamp (not provided) on to seal/hold the hose in place. Back off with the airbox and installed the hose/clamp while it was off the engine. Unless you have a hose clamp that is small enough, or use a shrink clamp, getting the hose clamp in just the right position to NOT hit the bowl of the carb and NOT hit the airbox so you can get the already short barrel nuts to start again was a 5 time remove, turn, replace....lather, rinse, repeat...until you can barely get everything back on. But on it went and seemed tight, looks good. Hopefully the barrel nuts don't vibrate loose with the maybe 2 threads I caught.After that though, the install was quite easy. Drill a couple holes in the frame to mount the large regulator in a place (bolts not provided) that allows access to all important things like spark plugs and such. The rest of the fittings/hoses are super simple and cannot be installed incorrectly. I used pipe dope instead of the supplied teflon tape because I prefer to not have teflon tape messing with my system. the 1/2" ID supply hose seems overkill, but OK.What bugs me though is the fact that I've read you can't use the 'Eco' mode when running propane on this system. During Eco Mode the engine idles until more juice is needed and then throttles up as needed. I am looking for suggestions on how to get the Eco mode enabled while running this system. Hearing the generator screaming at 3600 RPM all night with very little load nips at my strings when it could be idling, sipping propane. The propane system basically runs at 1 orifice opening. Shutting the throttle down with that much propane being pushed in to the engine seems like there will be issues. I"ll update after I get it running under full load. The directions 'say' you can run it in Eco mode, but I don't know how it will throttle back the propane when it goes back to idle.

This does work on Predator 7500/8750w generator. I had to redrill my engine mounts and shift the engine for the air box to fit due to the adaptor. NOTE: I have the old (2020) bolt for gas flow. I tried the newer style which is like a "T" meant for another generator which came with the incorrect carb adaptor. While experimenting. this old regulator worked, the new one would only run with the primer held down. the main difference is the larger diameter on the older bolt and hose, I replicated this on a titan 8000 generator. From what I can tell they are both 420cc homda clone engines. Both my predator 8750w and the Titan 8000 ran with the old setup and would not run with the current aetup. I am keeping my old Nash Fuel kit, and returning the absolute failure of the current setup. It would be cheaper to buy the hippa carb with the regulator for propane/gasoline. If wanted the Natural has then buy the Garrison regulator and hook that in. This method has a benefit of no spacer required, just add a fuel valve if you remove the smaller on demand regulator. Nash, use the old larger bolt set up again, I believe 1/2in bolt.

Works as stated. Easy to install, my generator runs far better on propane than it ever did on gasoline.

So far so good. Install was super easy and straightforward! The tuning was also quite easy with the instructions provided. (Tip* To put a heavy load on the unit, I used space heaters. I also got a two-in-one hour meter/tach so I could tune Nat Gas to gasoline numbers - able to get within 70 rpms throughout load ranges) I currently have about half an hour of run-time using Nat Gas with this kit using various loads from zero to near limits. Seems like good quality parts but obviously I cannot attest to longevity. I did not need any generator or frame modifications.

Simple, simple install. So easy a Caveman can do it instructions written by Americans. It worked first time which is rare with many kit type products these days.

Great company to with. Very helpful and willing to go the extra mile to satisfy customer. Product is complete and very well made

In addition to this product, I also purchased “Dalom Carburetor w Tune Up Kit Air Filter for Harbor Freight Predator 69671 68530 68525 69672 69674 68529 68526 420CC Portable Generator” by Dalom. Both installations were easy and now my Predator 8750/7000 is running on propane gas.

The kit was relatively easy to figure out and install. Some self tapping screws allowed easy mounting. After install, turned on the gas, purged the diaphram valve, cranked generator, adjusted flow till rpms stable. Very happy as a backup fuel in the event gas isn't available after a disaster.