The SuperTrapp exhaust on many Bull Dog motorcycles is a tunable exhaust.1. Loosen and remove the three cusp cap Allen screws from the bound of the exhaust with an Allen socket and socket wrench. Remove the cusp cap and CD stack. The orifice between the discs is smaller on the inside than the elsewhere. The abstraction is to beget expansion chambers with the discs which increases what is normally called the "scavenging development" of an exhaust action on engine exhaust. This is interchange and tune all modifiable parts in a SuperTrapp two into one exhaust.
Instructions
Most motorcycle exhausts benefit baffle tubes and chambers to alter the exhaust stream. The baffles beget the exhaust pennies circuit and slow down. Slower exhaust is quieter thanks to the exhaust stream contacts colossal Closeness absorbing packing materials longer. SuperTrapp exhausts convert the carry on leaf of exhaust flow with tuning discs.
2. Remove and cache handy the two Allen screws on the backside of the exhaust Issue. Remove the SuperTrapp core meeting from the muffler protest.
3. Slide the replacement core assembly into the muffler shell. Affiliate the screw holes in the different core with the screw gap in the muffler shell.
4. Secure the latest core in the muffler shell by reinstalling the two Allen screws with an Allen socket and wrench. Tighten the screws to 20 inch- pounds of torque with the Allen socket and a torque wrench.
5. Count the stackable discs in your CD stack meeting. Your exhaust may involve as many as 20 discs or as few as 12. SuperTrapp suggests you experiment with different numbers of discs until your engine finds its "sweet spot."
6. Stack the discs you decide to use inside the muffler end cap. The flat surface of the discs should face the core assembly.
7. Apply SuperTrapp brand high temperature lubricant or its equivalent to the Allen screw threads. Replace the end cap and disc assembly in the end of the muffler.
8. Tighten the Allen screws to 20 inch-pounds of torque with the Allen socket and a torque wrench. Test the performance of your motorcycle on the road.
