YAMAHA SR400 SR500 TT500 XT500 Flatball Valve Lash Screws (1 Pair) OEM Ref. 3HT-12159-R0-00 4X7-12159-00

Product Description

Valve Lash Flatball Screws (1 Pair) SR500 TT500 XT500

• Reduce the harmful side forces on the valve stem, thus the entire valve drive becomes firmer and significantly less strained !
• Compared to the genuine screws, larger base of head on the valve stem end. Thereby reducing compression and no more pitting
• Useful even for engines with slightly bashed valve ends, because as a consequence only the intact outer areas will be affected
• Low-maintenance due to extended valve lash timing intervals
• CNC-crafted, thereby highest precision and lowest tolerance; each ball is precisely plane polished and ball cups individually controlled; allows equal distribution of pressure as well as optimum adhesion
• Easy to handle-installation in no time, no adjustment required to the rocker arms, etc.
• The delivery package consists of a mounting-ready set for inlet and exhaust valve, 
• Fits all SR500 TT500 XT500 and XS650 for all years of construction

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