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Author Topic: Exhaust question  (Read 3281 times)

Offline pauliexjr

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Exhaust question
« on: February 15, 2012, 10:00:14 AM »
I have a 1978 F2 with a 4:1 exhaust, does anyone know if the earlier 4:2 exhasts fit? If so any thoughts where I could get the down-pipes? I've been told the ports are different on the F2 head so the older systems won't fit, is that true?
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Offline Spitfire

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Re: Exhaust question
« Reply #1 on: February 15, 2012, 10:10:40 AM »
The F2 never had a 4-2 exhaust, K series 4-4, CB750F1/F2 4-1.

Cheers

Den
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1977 CB750F2 In bits

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Offline pauliexjr

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Re: Exhaust question
« Reply #2 on: February 15, 2012, 10:13:39 AM »
Sorry Den, I didn't mean earlier F2's just earlier CB750s. Are the ports the same?
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DO NOT BELIEVE ANYTHING YOU SEE OR HEAR ON THE INTERNET - Abe Lincoln 1857

Current
1980 CB750 dohc - a new headache in my life :-)

Previous
1977 CB750 cafe racer, gone but not forgotten!
CBR1000
Yamha XJR1200
Triumph T140V Bonnie
Yamah XV750 Trike
Triumph T110 Saint
Suzuki GT750 'kettle'
Suzuki GT550
Honda CB550
Honda CB175 (first bike)

Offline Bryanj

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Re: Exhaust question
« Reply #3 on: February 15, 2012, 03:45:15 PM »
Sort of, the later ones have studs, split collars and flanged pipes with finned clamps---early had stub pipes held in with countersunk screws and exhausts fitted over with finned clamps
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