Ok, this is a new one for me, as I've never had this happen to me before. I'm presently working on a 2015 Merc Pro Kicker 9.9 4 stroke (Tohatsu built) outboard. It came in for running problems, which I've troubleshot down to carburetor issues. So I order a repair kit (part number 3V1-87122-0). The old float was warped and out of spec. (Book states between 9.5mm to 10mm) I assemble this thing with the genuine parts, reinstall the carburetor back on the machine, and the primer bulb will not get firm at all. Instead, the fuel comes gushing out of the main nozzle in the carburetor, thereby flooding the holy hell out of the engine! I've had this carburetor on and off this machine, I'll bet a dozen and a half times trying in vain to figure out just what the hell is going on with this thing, and I'm lost.
What I've found:
When the fuel is pumped in by way of the bulb, the bulb will not get hard.
When you turn the carburetor upside down, you can't get fuel into the carburetor by way of the bulb (bulb is immediately hard).
I've tried three different new floats and float valves, all with the same exact above listed results.
The float seam is perfectly parallel to the carb body when inverted.
It's almost like this float is too small for this carburetor, as it WILL NOT shut fuel flow down unless you invert the carburetor.
Has anybody here had this problem?
If you did, what did you do to correct it?
What I've found:
When the fuel is pumped in by way of the bulb, the bulb will not get hard.
When you turn the carburetor upside down, you can't get fuel into the carburetor by way of the bulb (bulb is immediately hard).
I've tried three different new floats and float valves, all with the same exact above listed results.
The float seam is perfectly parallel to the carb body when inverted.
It's almost like this float is too small for this carburetor, as it WILL NOT shut fuel flow down unless you invert the carburetor.
Has anybody here had this problem?
If you did, what did you do to correct it?
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