Vintage Dirt Bike Q & A

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PostPosted: Thu Oct 12, 2017 3:17 pm 
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Joined: Tue Jan 06, 2015 7:47 pm
Posts: 4
Does anyone have or know where I can find the removal cap or tip for the muffler. My current one is just a big hole, probably doesn't effect performance but it'd be nice to have.


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PostPosted: Sat Oct 14, 2017 1:48 pm 
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Joined: Sun Nov 30, 2008 12:10 pm
Posts: 968
Location: Connecticut, USA
One of these might work with a little tweaking (the MR175 tailpipe tube is @ 1.948" I.D., 2.008" O.D.) : http://www.ebay.com/itm/Exhaust-Muffler ... s4&vxp=mtr

Jon at jemcoexhaust.com should be able to make you up a custom cap/core. He did a long one for my aluminum silencer extension (pic below), so he could probably make a shorter one to fit the OEM tailpipe-tube length:

Image

On a NOS pipe, the insert adds low end and takes a bit off the top, along with a significant reduction in noise. If the 'turbine' section at the front of the tailpipe is clogged (as it usually is), it makes a lot less difference.

The stock insert doesn't even have a part number - Honda considers it part of the 18300-373-670 exhaust pipe.

Ray

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'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric


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