Sierra Carburetor Kit 18-7772 for Yamaha L250 (1991-96) and S250 (1996) Outboards

The Sierra Carburetor Kit 18-7772 is a rebuild kit designed to restore carburetor performance on compatible Yamaha outboard motors. Each kit contains enough components to rebuild two carburetors, making it a practical choice for twin-carburetor outboard setups or for keeping a spare set of rebuild parts on hand. The kit is built to OEM specifications so that fit, form, and function match the original carburetor components it replaces.

This kit is intended for outboard owners and marine technicians performing carburetor maintenance, addressing common issues such as rough idling, poor fuel atomization, or hard starting that result from worn gaskets, needles, and other internal carburetor parts. Part number 18-7772 cross-references directly to OEM part 18-7055, so it can be ordered as a like-for-like replacement for that component.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7772
• Product Type: Carburetor Kit
• Kit Contents: Enough components to rebuild 2 carburetors
• Weight: 0.1 pounds
• Package Height: 12.3 centimeters
• Package Length: 5.6 centimeters
• Package Width: 11.4 centimeters
• UPC: 808282167721

Fitment

• Yamaha L250 outboard, 1991-96
• Yamaha S250 outboard, 1996

Replaces (OEM)

• 18-7055

Frequently Asked Questions

What outboard motors does the Sierra 18-7772 carburetor kit fit? The Sierra 18-7772 carburetor kit fits the Yamaha L250 outboard (1991-96) and the Yamaha S250 outboard (1996).

How many carburetors can one 18-7772 kit rebuild? One Sierra 18-7772 kit contains enough components to rebuild 2 carburetors, so a single kit covers a twin-carburetor setup.

Is 18-7772 an OEM or aftermarket part number? 18-7772 is Sierra's part number for this carburetor kit, engineered to OEM specifications so it matches the fit, form, and function of the original components it replaces.

What OEM part number does the Sierra 18-7772 kit cross-reference to? The Sierra 18-7772 carburetor kit cross-references to OEM part number 18-7055.

How much does the Sierra 18-7772 carburetor kit weigh? The Sierra 18-7772 carburetor kit weighs 0.1 pounds.

What are the package dimensions of the 18-7772 kit? The Sierra 18-7772 carburetor kit ships in packaging measuring 12.3 centimeters high, 5.6 centimeters long, and 11.4 centimeters wide.

Will this kit work on a single-carburetor engine? Yes, since the 18-7772 kit contains enough parts for 2 carburetors, it can be used to rebuild just one carburetor with spare components left over, or two carburetors on a twin setup.

Does the Sierra 18-7772 kit include gaskets and needles for a full rebuild? The 18-7772 kit is a carburetor rebuild kit engineered to OEM specifications, supplying the components needed to rebuild the carburetors on compatible Yamaha L250 and S250 outboards.

Can I use the Sierra 18-7772 kit instead of sourcing OEM part 18-7055? Yes, the Sierra 18-7772 carburetor kit is built to OEM specifications and cross-references directly to 18-7055, making it a like-for-like rebuild option.

What is the UPC for the Sierra 18-7772 carburetor kit? The UPC for the Sierra 18-7772 carburetor kit is 808282167721.