Joined Jun 2014
22 Posts | 11+
Malaysia
Just sharing this just in case someone else bumps into this problem.
My bike has this problem with the Akrapovic exhaust header starting at ~150 hours. The header just wouldn't stay in place and will drop from the mid-pipe. It causes leaking and excessing back-firing because the header isn't all the way in revealing some gaps in the joint.
The torque spec for the clamp is 8nm and I tried cranking it tighter than that. It didn't help anything, only caused galling on the titanium part. Back to factory torque spec I went.
I tried plenty of things, including dismantling the entire exhaust system and putting them back in the correct order, putting silicone RTV sealant, and none have worked until now.
I bought 2 stainless steel hose clamps, used the stock exhaust spring (for the original muffler), some safety wires, and then simply bolted things together. The spring is hidden behind the pipes.
The first pic is just for reference to the 2nd zoomed in pic. The 2nd pic shows the spring from above the resonance can. Note that the top right corner in the 2nd pic, there is a dark spot from soot caused by leakage in the past.
This setup seems to hold well where my previous attempts would have failed within a test ride. My bike is now at 262 hours. I'm happy that this is finally fixed.
My bike has this problem with the Akrapovic exhaust header starting at ~150 hours. The header just wouldn't stay in place and will drop from the mid-pipe. It causes leaking and excessing back-firing because the header isn't all the way in revealing some gaps in the joint.
The torque spec for the clamp is 8nm and I tried cranking it tighter than that. It didn't help anything, only caused galling on the titanium part. Back to factory torque spec I went.
I tried plenty of things, including dismantling the entire exhaust system and putting them back in the correct order, putting silicone RTV sealant, and none have worked until now.
I bought 2 stainless steel hose clamps, used the stock exhaust spring (for the original muffler), some safety wires, and then simply bolted things together. The spring is hidden behind the pipes.
The first pic is just for reference to the 2nd zoomed in pic. The 2nd pic shows the spring from above the resonance can. Note that the top right corner in the 2nd pic, there is a dark spot from soot caused by leakage in the past.
This setup seems to hold well where my previous attempts would have failed within a test ride. My bike is now at 262 hours. I'm happy that this is finally fixed.
