1970-84 Yamaha XS650 TX650 XS2 XS1 Auto Advance Assembly Throttles & Sleeves Start the Swing Arm Bolt

Start the Swing Arm Bolt Tube Bushing by hand and stop if the threads do not seat cleanly

wiring exit

Choose this Piston - 2nd Oversize - 0

or unstable valve seating

1970-84 Yamaha XS650 TX650 XS2 XS1 Auto Advance Assembly Throttles & Sleeves Start the Swing Arm BoltAuto Advance Assembly. This Auto Advance Assembly belongs in the breaker points, condenser, or advance area that controls ignition timing and spark stability. Choose this auto advance assembly when points are pitted, timing drifts, advance sticks, or spark becomes inconsistent after basic wiring checks. Fitment Compatibility Fits Yamaha: Yamaha TX650 (1973 74) Yamaha XS1 1970 Yamaha XS1B 1971 Yamaha XS2 1972 Yamaha XS650 (1975 81) Yamaha XS650S (1978