Muffler Screws Removed and Sounds Like a Harley Now (Bad for the Bike?) - Honda Rebel Forum
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post #1 of 3 Old 02-15-2017, 04:41 PM Thread Starter
Join Date: Jan 2012
Location: Orange
Posts: 154
Question Muffler Screws Removed and Sounds Like a Harley Now (Bad for the Bike?)

Hey guys,
I was ridding to work on the freeway yesterday and I started to hear a noise get louder and louder then stopped at a point. I exited the freeways and it started to make back firing sounds and bobbing. I actually really liked the sound and the bike was at least 10 times louder. What happened is the two nuts and the spacer fell off so there was a gap between the muffler and engine. My question is this harmful to the bike if I left it like this? I already fixed it but need to order a spacer. The muffler that it happened to is already cracked and has a unfixable rattle but haven't wanted to pay $150 for a new one. So if it is harmful is it to the engine because of the valve clearance? Or only to the muffler?

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post #2 of 3 Old 02-15-2017, 04:54 PM
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Join Date: Jan 2016
Location: Georgia
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It will burn the exhaust valves (bad), and backfire (bad), and probably a few other bad things. Other than that I don't guess it matters.

1999 Honda Rebel CMX250C
2003 Harley Sportster 883 Hugger
1998 Harley FXDWG Dyna Wide Glide
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post #3 of 3 Old 02-15-2017, 05:08 PM
Join Date: Nov 2016
Location: Chandler, AZ
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+1. You need to fix it as soon as possible, or your engine won't last very long. You absolutely need to fix the problem where the exhaust pipe connects to the head. If the crack is in the muffler, way back from the engine, you can probably get away with that for awhile. It might cause the air/fuel mixture to be a little lean. Cracks can usually be patched. They sell stuff at auto parts stores to patch exhaust leaks. I would look on eBay for a good right side muffler assembly, or if you want, if both header pipes are good, you can cut the mufflers off and install Emgo shorty mufflers. They are a bit louder than stock, and may require rejetting.
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