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Author Topic: 1976 CB750F exhaust question  (Read 852 times)

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Offline dr.seiss

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1976 CB750F exhaust question
« on: February 12, 2012, 03:25:32 PM »
My bike came with a Mac 4-1 with an unbaffled megaphone. It's much quieter without the megaphone and doesn't scrape as often. Is it bad for anything if I run headers only?
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Offline Old Scrambler

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Re: 1976 CB750F exhaust question
« Reply #1 on: February 12, 2012, 04:10:15 PM »
I don't know if it is necessarily 'bad' for anything.............but I can't think of anything it good for.
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Dennis in Wisconsin
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Offline poboy

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Re: 1976 CB750F exhaust question
« Reply #2 on: February 12, 2012, 04:20:57 PM »
I just put a Thrush glass pack on mine. :)
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: 1976 CB750F exhaust question
« Reply #3 on: February 12, 2012, 11:15:28 PM »
I've run mine with it on and off. Only problem I saw was sooting up of all the parts behind the collector. The aluminum brace thingy is a #$%* to clean and spokes aren't fun either. Sounded damn fine though. Mini stock car on steroid kinda sound especially if your's is kitted. A big cam will sound nicely lumpy without the muffler  ;D
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Danno

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Re: 1976 CB750F exhaust question
« Reply #4 on: February 12, 2012, 11:49:03 PM »
put new baffles in the megaphone
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Offline dr.seiss

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Re: 1976 CB750F exhaust question
« Reply #5 on: February 13, 2012, 12:44:37 PM »
I'm thinking new baffles in the megaphone might be my best option for a temporary solution. Thanks everybody.
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