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Author Topic: CB750 Exhaust studs  (Read 4488 times)

Offline r1_pete

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CB750 Exhaust studs
« on: October 10, 2015, 11:18:43 AM »
The exhaust studs in my engine had been replaced with bits of threaded bar.

Am I right in thinking the genuine ones reduce in diameter to M6 ?? looking at various pictures they seem to reduce in diameter I'm guessing to give some fitting clearance for the collars.
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2009 Yamaha XJR1300 sold
1977 CB750F2 café racer project. Sold
1972 CB750K2 hot rod. Sold
and an E-Type Jaguar that considers itself worthy of all my spare cash. Sold

1971 CB450
1978 Reliant Scimitar Cosworth.

Offline hairygit

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Re: CB750 Exhaust studs
« Reply #1 on: October 10, 2015, 11:42:22 AM »
What engine are we talking about? 750F1 exhaust studs are M8 both ends.

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Offline r1_pete

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Re: CB750 Exhaust studs
« Reply #2 on: October 10, 2015, 12:00:45 PM »
I'm building an F1 and an F2 engine, so if they are m8 at both ends it makes spinning a few up in stainless a lot easier.

Cheers.
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2009 Yamaha XJR1300 sold
1977 CB750F2 café racer project. Sold
1972 CB750K2 hot rod. Sold
and an E-Type Jaguar that considers itself worthy of all my spare cash. Sold

1971 CB450
1978 Reliant Scimitar Cosworth.

Offline hairygit

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Re: CB750 Exhaust studs
« Reply #3 on: October 10, 2015, 12:19:00 PM »
F1 and F2 are M8 both ends, but be careful making your own, Honda used rolled threads rather than conventional cut threads as they were much stronger.

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If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline yozzer74

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Re: CB750 Exhaust studs
« Reply #4 on: October 27, 2015, 10:21:39 PM »
I'm just going to use 30mm m8 bolts in mine do away with studs
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Offline mike the bike

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Re: CB750 Exhaust studs
« Reply #5 on: October 27, 2015, 10:48:36 PM »
Get some stainless threaded rod from Screwfix and some stainless flanged nuts.
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Where's that 10mm socket got to?
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