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Tech Maintenance

How do I repack my exhaust?

We get this question a lot here at HMF. Typically, the average rider will need to repack their exhaust after about 40-50 hours of riding. This can vary however depending on the type of riding. More aggressive race machines are going to need to repack more often than the average trail rider. 

Repacking your exhaust requires an air rivet gun or an automotive style riveter. A small hand riveter will not work for this.

If you would like us to repack your exhaust system, see our Repair Services for details.

Click here to download these instructions in PDF format. (1MB) 

Installation Instructions

Step 1: Using a marker, draw a line representing the clock position of the inlet and exhaust.

How do I repack my exhaust?

Step 2: On the inlet side only, tap all the rivets until the stem drops. 

How do I repack my exhaust?

Step 3: On the inlet side only, drill out each rivet. 

How do I repack my exhaust?

Step 4: Using a rubber mallet, tap the exhaust shell to remove the inlet. 

How do I repack my exhaust?

Step 5: Using a 4mm allen key, loosen the allen screws on the end cap. 

How do I repack my exhaust?

Step 6: With the exhaust shell removed, discard of the old packing and wrap the new packing around the core. 

How do I repack my exhaust?

Step 7: When wrapping the packing around the core, make sure to make it as snug as possible. 

How do I repack my exhaust?

Step 8: Tuck the packing underneath the inlet. 

How do I repack my exhaust?

Posted Tuesday, July 01, 2014

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