I was looking at my bike last night and noticed a bolt below the exhaust. Just out of curiosity I took it out and started the bike up. Sure enough exhaust comes out the screw hole, the bike was a little louder. I have not rode it this way yet, have to repair a flat tire from my recent mountain ride. I am wondering if anyone has tried this and if the carbwould need re jetted due to the increased air flow.

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Good question, but I'd keep it plugged. There are a some of pics of several members who cut opened there stock mufflers, if you can find them on here they might explain what it's for.

 

Just put a replacement in. I'm not sure what it's really there for? Maybe a drain plug if you submerge your motorcycle in a pond?

 

The bolt is a clean out for the spark arrestor.

 

Exactly! You're supposed to remove it and rev the engine whilst tapping the can with a rubber mallet. It's all right in the manual.

 

Oopsie

I thought it was for my new propane injection flame thrower kitI just bought.....