Intake Manifold Spacer & Boot Set with Gaskets for Yamaha XS650 (1978-1983) | OEM 3G1-13586-00

Product Overview

Restore the smooth idling and legendary torque of your Yamaha Heritage Twin with the GOOFIT Carburetor Intake Joint Set. Specifically designed for the 1978-1983 XS650, this complete set replaces OEM #3G1-13586-00 and #3G1-13596-00.

On vintage XS650 engines, the original intake boots are prone to dry-rot and cracking, leading to lean-running conditions that cause backfiring and engine overheating. Our high-quality rubber joints include a precision-matched gasket set to ensure an absolute vacuum seal between your Mikuni carburetors and the cylinder head.

Product Compatibility

Direct replacement for Yamaha 650cc Parallel-Twin engines. Please measure your mounting points before ordering.

Brand	Model	Fitment Years	Replaces OEM Part #
Yamaha	XS650	1978 – 1983	3G1-13586-00 (Left)
Yamaha	XS650 Special	1978 – 1983	3G1-13596-00 (Right)
Yamaha	XS650 Heritage	1982 – 1983	3G1-13586 / 3G1-13596

Specifications

Ensuring a perfect bolt-on fit for your vintage restoration.

Feature	Measurement / Detail
Inner Diameter	30mm (1.18")
Mounting Hole Spacing	60mm (2.36")
OEM Reference	3G1-13586-00-00 / 3G1-13596-00-00
Material	Aging-Resistant Synthetic Rubber & Anti-Corrosion Alloy
Package Includes	Intake Boots (L+R) & Sealing Gaskets

Key Features

• Premium Aging-Resistant Rubber: Constructed from a high-quality rubber compound that is specifically engineered to resist corrosion, rust, and wear. It maintains flexibility and seal integrity even after years of exposure to engine heat and modern fuels.
• Complete Gasket Set Included: Unlike basic boots, this kit comes with the necessary gaskets to ensure a 100% airtight connection. This eliminates "phantom" air leaks that make carburetor tuning nearly impossible on vintage twins.
• Maximum Durability & Stability: Designed to withstand the heavy vibrations of the XS650 engine. The reinforced structure ensures the boots won't deform or slip under high-vacuum pressure.
• Precision Manufacturing: Features exact 60mm hole spacing and a 30mm inner bore, ensuring a seamless fit with factory-spec carburetors and cylinder head ports.
• Engine Performance Restoration: By stabilizing the air-intake volume, these joints help fix common XS650 issues like hanging idles, hard starting, and sluggish throttle response.