Re: Z400 Sprocket
I didn't want to spend a ton of money so I went with an HMF pipe. It did well for me. Just remember that you will have to rejet, and the bolts in your carb can be a real bear to get out. When you go to put it back together replace the factory ones with an allen headed bolt. There should be a link here somewhere telling you the right size and pitch of thread. I bought mine at sears hardware.