KCFJW2025 Carburetor Rebuild Kit for Yamaha V Star 650 XVS650 (1998–2016) — 2-Pc set with Diaphragms & Floats

Two complete carburetor rebuild kits designed to restore fuel control for Yamaha V Star 650 XVS650 models from 1998 through 2016.

This KCFJW2025 package includes two carburetor repair kits that replace worn diaphragms, plungers, floats and seals to help return your V Star 650 to reliable throttle response and smoother idling. Each kit contains the typical service parts riders need for a routine carburetor overhaul; installation is straightforward with basic hand tools. The parts are intended to match the XVS650 specification and offer a cost-effective alternative to buying OE assemblies.

What parts are included and will they match my V Star 650?

Each of the two kits contains a set of standard carb rebuild components sized for the Yamaha XVS650 carburetor family. They are intended for 1998–2016 V Star 650 models and mirror common OEM replacement pieces used during routine maintenance.

• Diaphragms and plungers to refresh accelerator pump action
• Floats and float valves for consistent fuel level control
• O-rings, gaskets and seals to prevent vacuum and fuel leaks
• Small hardware pieces and washers needed for reassembly

How difficult is installation and what tools are required?

Installation is suitable for mechanically inclined riders and home mechanics; basic tools such as screwdrivers, pliers or tweezers are sufficient. The repair procedure involves removing the carburetor (or its bowls), replacing the worn parts, and reassembling while preserving correct part orientation and seal seating.

• Turn off fuel and disconnect battery before starting
• Clean visible dirt and old gasket material thoroughly
• Use screwdrivers and small pliers to remove and install parts
• Check sealing surfaces and start the engine to confirm operation

Will these kits improve throttle response and idle stability?

Replacing aged diaphragms, floats and seals often restores proper fuel metering and pump action, which can improve throttle transition and steady idle when the carburetors are the cause. Results depend on the overall condition of the carb body, jets and fuel system cleanliness; a full clean and inspection is recommended alongside the rebuild.

• New diaphragms help accelerator pump consistency
• Fresh float valves reduce flooding or lean conditions
• New gaskets reduce vacuum leaks that disturb idle
• Works best with cleaned jets and passageways

Are these kits a direct replacement for OEM parts?

These aftermarket rebuild kits are designed to align with XVS650 carburetor dimensions and functionality, but they are not OEM-labeled parts. They offer a practical, lower-cost option for routine rebuilds; confirm fitment against your carburetor layout to ensure compatibility.

• Part number compatibility: XVS650-style carburetor sets
• Sold as two identical carb rebuild kits per package
• Ideal for servicing both carburetors on twin-carb setups

Who is this for: Riders and home mechanics who own a Yamaha V Star 650 XVS650 (1998–2016) and want to perform a preventative or restorative carburetor service will find these kits useful. They suit those comfortable with basic disassembly and reassembly of carburetor bowls, want to replace common wear items without buying complete carb assemblies, and are looking for an economical way to improve fuel delivery consistency. If you suspect worn diaphragms, leaking floats, or degraded seals, this two-piece set provides parts to address both sides of a twin-carb system.