Triumph Norton BSA Tri-Spark Electronic Ignition for Classic Twins and Singles PN# TBS-1006

The Classic Twin utilizes 21st century technology to provide simple installation without the black box, superior running and easy starting without kick back. Many years of experience with classic motorcycles and extensive development has resulted in this high precision, zero maintenance, compact and reliable system. Built in self test mode and LED for setting the timing. The Classic Twin stator is wired for positive earth as this is the more common set-up on classic British bikes. The Classic Twin ignition must be wired correctly for the bike’s earth polarity. If the ignition module is connected incorrectly on a negative earth system, it can damage the output transistor. Fortunately, this is easy to avoid. When installing the ignition: Confirm whether the bike is positive or negative earth If negative earth – change over the terminals on the stator Follow the wiring diagram supplied with the ignition Double-check polarity before connecting power When wired correctly the Classic Twin ignition is extremely reliable and continues to be one of the most popular upgrades for Triumph, Norton and BSA twins and singles. The Tri-Spark Classic Twin Ignition is suitable for Triumph Unit Twins T100, T120, TR7RV, T140 Bonneville, Tiger, Daytona etc; Norton Atlas and 1968 Commando; Enfield Interceptor (Clockwise Rotation); Norton Commando 1969-75, BSA unit twins, A65, B50; BSA singles, B25 etc; and Triumph singles, Tiger Cub (Anticlockwise Rotation). This is a 12 volt system for positive OR negative earth/ground installations. Recommended accessories with the Classic Twin Ignition Coils Tri-Spark 6V high performance coils (2 required for twins); (IGC-1006) Spark plug lead (wires are 90cm long – cut to length), (2 required); Right angle coil end (SPL-0020) or Straight coil end (SPL-0010) NGK 5k suppressor caps (2 required). Spark plug cap (SPL-0030) or Small spark plug cap (SPL-0040) Recommended accessories for Single Cylinder Bikes Ignition Coil Tri-Spark 12V high performance coil; (IGC-1012). Spark plug lead (wires are 90cm long – cut to length); Right angle coil end (SPL-0020) or Straight coil end (SPL-0010) NGK 5k suppressor caps. Spark plug cap (SPL-0030) or Small spark plug cap (SPL-0040) We use the direction and speed of rotation to optimize the starting performance which is critical for kickstarting. This also helps to avoid damage to the electric start mechanism which is easily done in some machines if the engine kicks against the starter. We designed this unique system because you want your engine to fire up easily! What the kit includes Tri-Spark stator unit (trigger and control module) – replaces the points plate Tri-Spark trigger rotor – replaces the auto advance unit and points cam 12 page illustrated color instruction booklet a few useful wiring terminals and hardware items for fitting Classic Twin for offset crank The Classic Twin is generally used for parallel twins with a 360-degree crank configuration; however it may be used on engines with offset cranks such as 270-degree. A modification is required to the trigger rotor for offset crank applications to reposition the magnets to suit your engine. Please add the Offset Crank Rotor to your cart and specify the degrees and for what bike in the delivery note section. The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.