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mon-thurs 9-5 cst
This fuel inlet seat is oftentimes called a “short alky” seat. This is due to the height or length of the seat being short and the fuel orifice I.D. being .093”. This is the common seat used for most carburetors made to run methanol(alcohol, alky) except for some gas carburetors made for many rotary or reed valve 2-cycle race engines or big displacement piston port 2-cycles and larger 4-cycle engines.
It is crucial that you use the correct seat for your carburetor and application. Not only could this hurt performance but it could damage your engine. Check your carburetor and carburetor listing before ordering
Beware of aftermarket fuel inlet needles and seats. This is the number one problem after a carburetor has been recently rebuilt. The aftermarket kits usually do not seal very well. This is most noticeable at idle and low speed, the carburetor will be flooding fuel especially from the high side circuit. Use a pop-off pressure gauge to check your pop-off pressure and to make sure the needle and seat are not leaking.
Seat Orifice 0.093”
Seat Length 0.538”