Find Yamaha XS650 valvetrain parts for top-end service, engine rebuilds, and restoration. Browse valves, guides, rocker parts, and related components for classic XS650 motorcycles. For related timing and top-end service items, explore Yamaha XS650 Camshaft Drive Parts or Yamaha XS650 Cylinders, Pistons & Rings.
Cylinder Head Sealing Washer - Replaces Yamaha OEM 90210-10004. This cylinder head sealing washer seats under the matching head fastener or plug to help...
High Performance Kibblewhite Black Diamond Exhaust Valve - Chrome. This exhaust valve controls spent-gas flow out of the cylinder head and must seal cleanly...
High Performance Kibblewhite Black Diamond Intake Valve - Chrome. This intake valve controls fresh charge flow into the cylinder head and must seal cleanly...
High Performance Kibblewhite Exhaust Valve Guide - Aluminum. This exhaust valve guide supports the valve stem in the cylinder head so valve tracking, seat...
High Performance Kibblewhite Intake Valve Guide - Aluminum. This intake valve guide supports the valve stem in the cylinder head so valve tracking, seat...
Rocker Arm Shaft - Replaces Yamaha OEM 256-12156-01-00. This rocker arm shaft supports rocker-arm movement so cam motion transfers cleanly to the valves.Choose this...
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Valve Collets (Keepers) - Replaces Yamaha OEM 341-12118-00. These valve keepers lock the valve spring retainer to the valve stem groove and should be...
Exhaust Valve - Polished - Stainless Steel - Replaces Yamaha OEM 341-12121-01. This exhaust valve controls spent-gas flow out of the cylinder head and...
Valve Spring Set. This valve spring part helps control valve return and should be checked with installed height, seat pressure, and retainer clearance.Replace this...
Valve Stem Seal - Replaces Yamaha OEM 341-12119-00/02. This Valve Stem Seal controls oil travel down the valve stem into the combustion chamber.Replace this...