Accel single fire_dual fire ignition module

Description

Accel single fire_dual fire ignition module

Works with single and dual fire ignition set-ups
Features 14 advance curves from stock to extreme and an adjustable rev. limiter
VOES imput option and tachometer output
Front cylinder static timing with a L.E.D. light for easy set-up
Note: The difference between single dual fire explained: – 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 engines work
Two separate coils will fire the spark plugs independently and only the spark plug of the cylinder that is on compression stroke will be fired
It is said that these engines vibrate less and can improve power
The effects will become more pronounced with hotter cams and higher RPM.

For70-99 Big Twin (excl. Twin Cam) and 71-01 Sportster (excl. 1200S). Models with mechanical advance

Brand Accel
Article number 902626