Without riser clamp

Bushings are installed and reamed to factory specifications

FITS BEHIND RETAINING RING

Note: Soak in oil before use

Fits: > 82-99XL (RIGHT)

DYNATEK, DYNA-S IGNITION KIT. DUAL FIRE 1970-99 Oilpump Kits Without riser clampComplete Dyna S kit dual fire with single coil. The required mechanical advance unit must be purchased separately. Note: Difference between Single & Dual Fire: Dual Fire This is the way the earlier, pre Twin Cam, engines work. A single coil is used and both spark plugs fire simultaneously. This is the simplest system. The 'wasted' spark is sometimes said to be horsepower robbing. Single Fire This is the way the stock 00 up Twin Cam M8 engines work.