Under the access cover where the filters are, etc. If they get used enough, they never need priming though.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car

Check youtube.

Probably time to replace diaphragms in the carburetor. If you find the OEM number (maybe Walbro for ex) for the carb you can get the parts cheap, rebuild kit. Through honda they will cost more and be more of a pain, one part at a time.

Check the fuel and air flow first.

Thanks. Here's an interesting one:

Honda EU2000i Fuel Problem - YouTube

I haven't used the generator much. I doubt I have 5 hrs on it.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Notice the drain line on the bottom of the bowl that I referred to. All this poor guy has to do is drain the carb. after each use.

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'83 300D, 126K miles.

For engines that you don't use much like weed eaters, lawnmowers, etc. try running them on aviation gas. It doesn't have the additives and ethanol that pump gas has. Even if you run your equipment dry before putting it up there is always a drop of fuel that dry out on the end of the tube that goes from the bowl to the venturi. I had this problem with my outboard engine.

Where do you buy aviation gas?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

At airports that have civilian/light airplane service. It is about $4.5 a gal. but will save you tons of time and headache in the spring when you are trying to bring a recalcitrant week wacker back to life.

You could also use Coleman fuel to purge your fuel system, but it won't work under a load as its octane rating is very low.

After hurricane Gloria on LI, I prepped a friend's old Winco generator for storage by completely draining the fuel system and oiling the cylinder. One of his employees needed a generator after Sandy, and borrowed this one. It started in two pulls- 28 years later.

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'83 300D, 126K miles.

My guess as to what was/is going on with mine is that the fuel evaporated out of the carb during storage since I didn't drain it. For some reason, the fuel pump wasn't pumping enough fuel to the carb while trying to start it. Or, some small piece of varnish or debris was stuck in the jet and got blown out once the engine fired up. I say this because once the engine got the ether it fired right up and then ran fine.
I did have Stabil in the fuel but obviously, that didn't stop this problem.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13