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Author Topic: Will HM300 baffles fit in HM341's?  (Read 1289 times)

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Offline zoo mob

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Will HM300 baffles fit in HM341's?
« on: June 27, 2009, 10:41:01 PM »
Might pick up a set of 341's without baffles and have a set from a rotted set of 300's will they work? Anyone done this?
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Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
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Offline andy750

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Re: Will HM300 baffles fit in HM341's?
« Reply #1 on: June 27, 2009, 11:03:22 PM »
No they wont work. Different internals. Of course you can make anything work with time and tools but I doubt its easy.

cheers
Andy
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Offline 736cc

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Re: Will HM300 baffles fit in HM341's?
« Reply #2 on: June 28, 2009, 10:42:21 AM »
You can hacksaw the ends off the HM300 baffles  (2" or so) and bolt them on the HM341 pipes. Get a looong 1/4 or 3/8" drill bit and drill a buncha holes inside the hm341's for better breathing and sound.
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Offline andy750

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Re: Will HM300 baffles fit in HM341's?
« Reply #3 on: June 28, 2009, 04:47:14 PM »
Ill defer to 736ccs greater knowledge on this  ;)

cheers
Andy
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Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline zoo mob

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Re: Will HM300 baffles fit in HM341's?
« Reply #4 on: June 28, 2009, 09:30:59 PM »
So I'm not going to end up with the frankenpipes, but am interested in the drilled out baffles, does anyone have pictures of this or insights on how it worked out for them?
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Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
Always looking for more
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