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Rating: 4
Hornet pipes, late type clutch (A65) #730287
03/29/18 3:45 pm
03/29/18 3:45 pm
Joined: Sep 2016
Posts: 207
Norway
M
Manx Offline OP
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Manx  Offline OP
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Posts: 207
Norway
Has anyone fit hornet pipes in conjunction with the later type cluch cover.

I mocked up my top end today to fettle room for a panckake filter and I see that the clutch cable is touching the pipe.

I could maybe fit a spring over the cable outer but maybee someone has a smarter solution?

[Linked Image]


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
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Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730314
03/29/18 9:25 pm
03/29/18 9:25 pm
Joined: Feb 2010
Posts: 451
Au
M
markoz Offline
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Au
I have no answer for you, but the shorter srm barrels do make fitting pipes a bit more difficult.

Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730316
03/29/18 9:45 pm
03/29/18 9:45 pm
Joined: Sep 2004
Posts: 852
Farnham, Surrey, UK
gunner Online content
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gunner  Online Content
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Farnham, Surrey, UK
I have the same pipes fitted on my 1968 Firebird, however the clutch cable enters from behind the inner timing side cover so there is no issue with fouling the exhaust. Maybe you could convert to using the earlier inner timing side cover but I don't know if this works with the later OIF cases.


1968 A65 Firebird
1967 B44 Shooting Star
1972 Norton Commando
Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730317
03/29/18 9:52 pm
03/29/18 9:52 pm
Joined: Aug 2015
Posts: 1,268
Bolton Lancs UK
A
Andy Higham Online content
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Andy Higham  Online Content
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Bolton Lancs UK
Ditch the leg burners


BSA B31 500cc "Stargazer"
Greeves 200cc "Blue Meanie"
Greeves 350
Greeves 360 Challenger
Suzuki GSX1100 EFE "Sorcerers Apprentice"
GM500cc sprint/LSR bike "Deofol"
Jawa 500cc "Llareggub"
2003 Aprilia RSV Mille "Lo Stregone"
'35 OK Supreme
'36 OK Supreme
Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730327
03/29/18 10:44 pm
03/29/18 10:44 pm
Joined: Sep 2016
Posts: 207
Norway
M
Manx Offline OP
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Manx  Offline OP
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Norway
As awkward or loud as these may be, this is what my bike originally came with.

The timing covers have been replaced at sometime and have end bearing and oil feed conversion so swapping those is out of the question.

I have made a clutch cable with an adjuster so the adjuster on the case can be screwed all the way in.
The cable is touching the pipe and I think I will use an exhaust P bracket and cut a slot to hold the cable off the pipe.

I've seen photos of hornet pipes on newer motors and am curious how people get around it.

Low slung pipes on a motorcross bike are pretty useless, I know this because I've just removed a set and they have had more hits than ABBA...


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Hornet pipes, late type clutch (A65) [Re: markoz] #730328
03/29/18 10:56 pm
03/29/18 10:56 pm
Joined: Sep 2016
Posts: 207
Norway
M
Manx Offline OP
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Norway
Originally Posted by markoz
I have no answer for you, but the shorter srm barrels do make fitting pipes a bit more difficult.


Shorter how? The jug that is on now is the devimead just for mock up .


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730343
03/30/18 3:10 am
03/30/18 3:10 am
Joined: Apr 2013
Posts: 246
Illinois
Spitfire Ken Offline

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Spitfire Ken  Offline

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Illinois
THE 64-65 HORNET PIPES "MIGHT" WORK BETTER.


I APOLOGIZE FOR THE USE OF CAPS. I CAN ONLY TYPE WITH MY RIGHT HAND SO USING THE SHIFT KEY IS BEYOND MY CAPABILITES.

The Devil is in the details.

1957 BSA A10 Spitfire Scrambler (numbers matching, very correct, very nice condition)
1965 BSA A65 Lightning Rocket "Clubman" (restored)
1966 BSA A65 Spitfire MK-II (restored)
1967 BSA A65 West Coast Hornet (under rstoration)
2001 Kawasaki W650
Re: Hornet pipes, late type clutch (A65) [Re: NickL] #730346
03/30/18 6:49 am
03/30/18 6:49 am
Joined: Sep 2016
Posts: 207
Norway
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Manx Offline OP
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Norway
Originally Posted by NickL
You could drill the late cover you have and convert it to the earlier style clutch operator.
The markings for the casting plugs are still there, just need sorting.
The devimead/srm 750 barrels are about 3/8 shorter, the 850 type are about the same as original.
That's why SRM supply pushrods with their 750 kits.
Piston height above the pin is much shorter with the B44 pistons for 750 displacement.


Ahh... I didn't know that but they did mention that the Devimead head bolts wouldn't fit, so now I know why.

The positive is that will give me better carb clearance but will proberbly bring the exhaust very close to the cable adjuster. I have to wait for the barrel before do anything else.


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730363
03/30/18 12:33 pm
03/30/18 12:33 pm
Joined: Aug 2001
Posts: 4,114
argyll. scotland, uk
gavin eisler Offline
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argyll. scotland, uk
A steel swept bend might fix the clutch cable entry, look at Venhills cable bits this sort of thing, https://www.venhill.co.uk/cables-amp-components/af1c.html
Ever wonder why the OIF firebirds had pipes up the LHS.? Now you know.

of course the clutch cable now becomes a custom one off with a re route, maybe lead in from the front?

Last edited by gavin eisler; 03/30/18 12:48 pm.

71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
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The poster formerly known as Pod
Re: Hornet pipes, late type clutch (A65) [Re: Manx] #730451
03/31/18 10:54 am
03/31/18 10:54 am
Joined: Apr 2005
Posts: 2,422
Bega NSW Australia
Mark Parker Offline
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Mark Parker  Offline
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Posts: 2,422
Bega NSW Australia
I'm with Gavin, add a curved metal section to get it off the pipe. It's a common way to turn a cable run away from stuff. I have 90degree ones for throttle cables on my carbs. Just look at how much room you have and workout the angle you need, if you can pull the cable off the pipe a metal section with that curve should work, it should screw in and lock where you want it with a lock nut.


mark
Re: Hornet pipes, late type clutch (A65) [Re: Mark Parker] #734573
05/09/18 4:35 am
05/09/18 4:35 am
Joined: Sep 2014
Posts: 53
Pacific NW
9
998John Offline

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Pacific NW
Is there a source for TT pipes for the 67 West Coast Hornet? The ones that came with the bike look more like Triumph TT pipes.
I have seen one other Hornet with similar pipes but none in any BSA flyers or brochures.

Last edited by 998John; 05/09/18 4:35 am.
Re: Hornet pipes, late type clutch (A65) [Re: 998John] #735343
05/15/18 3:31 am
05/15/18 3:31 am
Joined: Jan 2006
Posts: 3,342
Medford, Oregon
Gary E Offline
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Medford, Oregon
John,

No source for original West Coast model Hornet TT pipes. They are very hard to source. I maintain a database of known original Hornet TT pipes, both NOS and used around the world. The database is not very long. Granted there are pipes out there that I don't know about, but none the less, most that have them don't want to give them up. No accurate reproductions available that I know of. Some were made though, and I posted the differences (original vs reproduction) with images in the long Hornet/Wasp thread (a sticky thread). Because of the compound angles of the bends right out of the head, the very tight frame clearances (about an 1/8" or less), as well as very tight engine sump cover studs/nuts clearance (again 1/8" or less), they would be difficult to duplicate.


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
Re: Hornet pipes, late type clutch (A65) [Re: Manx] #735377
05/15/18 12:27 pm
05/15/18 12:27 pm
Joined: May 2013
Posts: 5,004
Rotherham - S. Yorkshire
Allan Gill Offline

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Allan Gill  Offline

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Rotherham - S. Yorkshire
You could also retro-fit the earlier clutch mechanism in to the later inner case, early outer cases are very cheap too. simple enough to drill two holes, fit a cable adapter and add the lever.


beerchug
Re: Hornet pipes, late type clutch (A65) [Re: Gary E] #735724
05/18/18 3:38 am
05/18/18 3:38 am
Joined: Sep 2014
Posts: 53
Pacific NW
9
998John Offline

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998John  Offline

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9

Joined: Sep 2014
Posts: 53
Pacific NW
Originally Posted by Gary E
John,

No source for original West Coast model Hornet TT pipes. They are very hard to source. I maintain a database of known original Hornet TT pipes, both NOS and used around the world. The database is not very long. Granted there are pipes out there that I don't know about, but none the less, most that have them don't want to give them up. No accurate reproductions available that I know of. Some were made though, and I posted the differences (original vs reproduction) with images in the long Hornet/Wasp thread (a sticky thread). Because of the compound angles of the bends right out of the head, the very tight frame clearances (about an 1/8" or less), as well as very tight engine sump cover studs/nuts clearance (again 1/8" or less), they would be difficult to duplicate.



Gary,
Here's a set of "TT" pipe available from Classic Motorcycle Spares. Have you seen or know of anyone who has tried them?
http://www.classicmotorcyclespares....sa-a65tt-tt-style.html#BSA_Exhaust_Pipes

Re: Hornet pipes, late type clutch (A65) [Re: 998John] #735743
05/18/18 10:58 am
05/18/18 10:58 am
Joined: Jan 2006
Posts: 3,342
Medford, Oregon
Gary E Offline
BritBike Forum member
Gary E  Offline
BritBike Forum member

Joined: Jan 2006
Posts: 3,342
Medford, Oregon
Originally Posted by 998John
Originally Posted by Gary E
John,

No source for original West Coast model Hornet TT pipes. They are very hard to source. I maintain a database of known original Hornet TT pipes, both NOS and used around the world. The database is not very long. Granted there are pipes out there that I don't know about, but none the less, most that have them don't want to give them up. No accurate reproductions available that I know of. Some were made though, and I posted the differences (original vs reproduction) with images in the long Hornet/Wasp thread (a sticky thread). Because of the compound angles of the bends right out of the head, the very tight frame clearances (about an 1/8" or less), as well as very tight engine sump cover studs/nuts clearance (again 1/8" or less), they would be difficult to duplicate.



Gary,
Here's a set of "TT" pipe available from Classic Motorcycle Spares. Have you seen or know of anyone who has tried them?
http://www.classicmotorcyclespares....sa-a65tt-tt-style.html#BSA_Exhaust_Pipes


John,
I had a set that looked just like those. Don't know if the set was the same manufacturer or not. They didn't fit for s**t. They hit everywhere. Sold them, buyer sent them back, said he couldn't get them to fit. Sold them again, 2nd buyer said he'd keep them no matter what. I have the differences between factory originals and reproductions (with images) posted in the long (sticky thread) Hornet/Wasp et al thread. Oh, and that link you posted shows "out of stock".


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
Re: Hornet pipes, late type clutch (A65) [Re: 998John] #735753
05/18/18 12:42 pm
05/18/18 12:42 pm
Joined: Apr 2013
Posts: 246
Illinois
Spitfire Ken Offline

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Spitfire Ken  Offline

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Joined: Apr 2013
Posts: 246
Illinois
I HAVE SEEN THESE BUT HAVE NOT TRIED THEM ON A BIKE FOR FIT. THE WELDS ARE NOT WERE NOT ACCURATE ENOUGH FOR A SHOW BIKE.

GARY I STILL HAVE THE USED SCRAPE UP SET THAT I SENT YOU PICTURES OF A WHILE BACK. I AM NOT GOING TO USE THEM BECAUSE I FOUND AN NOS SET THAT I AM USING ON MY BIKE.


I APOLOGIZE FOR THE USE OF CAPS. I CAN ONLY TYPE WITH MY RIGHT HAND SO USING THE SHIFT KEY IS BEYOND MY CAPABILITES.

The Devil is in the details.

1957 BSA A10 Spitfire Scrambler (numbers matching, very correct, very nice condition)
1965 BSA A65 Lightning Rocket "Clubman" (restored)
1966 BSA A65 Spitfire MK-II (restored)
1967 BSA A65 West Coast Hornet (under rstoration)
2001 Kawasaki W650
Re: Hornet pipes, late type clutch (A65) [Re: Spitfire Ken] #735867
05/20/18 1:33 am
05/20/18 1:33 am
Joined: Jan 2006
Posts: 3,342
Medford, Oregon
Gary E Offline
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Gary E  Offline
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Joined: Jan 2006
Posts: 3,342
Medford, Oregon
Originally Posted by Spitfire Ken
I HAVE SEEN THESE BUT HAVE NOT TRIED THEM ON A BIKE FOR FIT. THE WELDS ARE NOT WERE NOT ACCURATE ENOUGH FOR A SHOW BIKE.

GARY I STILL HAVE THE USED SCRAPE UP SET THAT I SENT YOU PICTURES OF A WHILE BACK. I AM NOT GOING TO USE THEM BECAUSE I FOUND AN NOS SET THAT I AM USING ON MY BIKE.


Ok Ken. I'll add your NOS set to the TT pipe database.


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV

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