Float and/or float valve in carburetor? Dirty, stuck, or somehow restricted.
To thoroughly clean it you need to remove the fuel bowl, float, and valve,
clean them, then reassemble. On MOST carbs with a float, if you turn the
carb upside-down and let the float rest on the valve, the float itself
should be horizontal. Some engine mfgrs show an actual measurement between
the float and the carb casting, but it tends to end up horizontal anyway.
I presume this is a two-cylinder engine, possibly V-twin. I'm pretty sure my
old 16hp V-twin generator engine had a fuel pump and bowl. It's important to
run the fuel bowl dry at the end of the summer season if you won't be using
the engine for the next 6 months or so, otherwise the fuel evaporates and
leaves a residue all over everything, usually keeping the float valve shut,
so you get no fuel flow and the engine will not run.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.