Polished Chrome Aluminum Cam End Cover Set (2) - Plain, No logo. One cover for the advance side, one cover for the points side. CNC Machined - Polished Chrome finish (Plain, No logo) with chrome allen set screws for mounting included. Fits: All 650's 1970-1984. Really adds to the looks of your engine!

Big Fin Cylinder Block Fitted to Standard Size 650cc. Original type pistons. Includes Cylinder Block, fitted Stock type cast pistons, piston pins, clips, Head and base gasket and matching piston ring sets. Kit Fits: 1974-84 447 XS/TX 650 Engines. Start over at the original stock 650cc. bore size with the improved cooling and good looks of our Big Fin cylinder.

Square Polished Valve Cover, 4 Hole Type.

Polished Valve Cover, 3 Hole Type.

Stainless Steel Rocker Shaft Plug & O-Ring Set. Set includes 4 Plugs and 4 O-Rings - Allen Socket Head Type. Fits: All XS/TX 650's 1970-84

Aluminum Rocker Shaft Plug & O-Ring Set. Set includes 4 Plugs and 4 O-Rings. Allen Socket Head Type. Fits: All XS/TX 650's 1970-84

HP Connecting Rod Bearing, Washer & Pin Kit. Includes: Big end Bearing & Thrust Washers. A Superior quality part made in Japan on all new tooling.

Tsubaki BF05M Cam Chain replacement link

Cam Chain Endless - 219FTSS x 106. Pitch .3061" (7.774mm.) Fits: TX/XS650's 1974-84 (36 tooth cam). Made in Japan.Also fits: SR500 E/F/G/H 78-81, XT500 C/D/E/F/G/H 76-81 Dual Sport - Installation Note: Cam Chain is absolutely correct as original brand/size/length/type The installation will be tight as chain is pressure injected with grease at factory and head gasket is not yet compressed. Install with tensioner assembly out. Chain will loosen once head is torqued and engine is run a short time. Adjust cam chain accordingly. OEM: 94562-19106-00

Engine Valve Shim Kit, 29mm Diameter. Contains 20 pieces: 2 Each 2.3/2.4/2.5/2.55/2.6/2.7/2.8/2.9/3.0/3.1

Rocker Arm Shaft. Sold Each. 4 Used Per Engine. Replaces OEM 256-12156-01-00

5th. Overdrive Gear for Yamaha XS650 (1973-84), Fits Main shaft 0.979 mm ONLY. 0.984 inches or 25 mm (Hole diameter). 24 Tooth 5th. Pinion Gear. Replaces 23T 5th.Pinion Gear Gear fits to stock location and makes fifth gear taller (higher top speed in fifth but less torque and less vibration) but ratios in lower gears remains the same so that acceleration & torque in lower 4 gears remains the same. Cases must be split to install. This is a "Race" part and carries no warranty other than for defects in materials. Note: The gear I.D. measures 0.984 inches or 25 mm, PLEASE MEASURE IT BEFORE ORDERING This is Highly recommended to be used with part #05-0857.

XS Performance - Engine Overhaul Gasket Set Fits XS650 1972-1984 Comes complete as shown in photo, includes valve stem seals, headpipe gaskets & Orings.

Engine Bolt Set 70-73 Includes lock nuts, chrome plated.

High Performance Kibblewhite Black Diamond Intake Valve. Made in the USA by Kibblewhite who have been making High Quality Performance parts for 75+ years. All Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface build up of .0002. This Black Diamond process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics. Fits: Yamaha XS650 (1970-83) Sold Each, Order the Quantity you Require