4MX4 Stroke Silencer Packing Kit

While washing your bike, make sure that no water can get into the muffler.
For this, you can use the Twin Air exhaust plug. Wet Muffler Packing will increase the noise level. Another way the packing material will fail is oil saturation or carbon build up on the muffler core.

To repack your muffler, take it apart, remove old packing completely, clean every part (especially the inner core) and check every part for cracks or other damages. Put inner core back into the muffler body. Start to refill the muffler from the rear end by wrapping strands of material around the inner core and push them with a proper tool to the front end of the muffler.

After the muffler is completely filled, you must be able to push the packing material 2-3 cm more into the can. Never pack to tight! Now mount the end cap and seal the muffler with heat-resistance silicone.Ouvir