Author Topic: BSA If only  (Read 1364 times)

Online Triton Thrasher

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Re: BSA If only
« Reply #15 on: 21.03. 2015 08:48 »
for example wasting 3 million pounds tooling and developing the ariel 3! and at the same time destroying the tooling for the bantam which was still popular.

I don't know if they could profitably build Bantams, but the Ariel looked like they'd taken some trouble to find out exactly what nobody wanted, then offering it to them.

Online Greybeard

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Re: BSA If only
« Reply #16 on: 21.03. 2015 09:14 »
To me the egg shaped engines looked like a Villiers two-stroke.

Offline Tomcat

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Re: BSA If only
« Reply #17 on: 21.03. 2015 09:33 »
My 20c worth on A65's
I have a 1970 Thunderbolt and really enjoy riding it, the frame, two way damped forks and twin leader brake make it handle well and stop. The engine goes well but vibrates. Why on earth did Slumberslade hall change the frame, forks and brake BUT kept the engine??? Many years ago I owned an XS650, great engine but poor handling. Perhaps an XS engine in a late BSA dry frame would have been a good combination? Would need metric, AF and WW spanners in the tool kit though!
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Offline kiwipom

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Re: BSA If only
« Reply #18 on: 21.03. 2015 09:53 »
Hi guys,I like the idea of a direct oil supply to the rocker gear instead of a hit and miss afair of our setup. Has anyone considered connecting a direct supply? It could easily be achieved by tapping into a feed to other places, cheers
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Online Triton Thrasher

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Re: BSA If only
« Reply #19 on: 21.03. 2015 11:42 »
Hi guys,I like the idea of a direct oil supply to the rocker gear instead of a hit and miss afair of our setup. Has anyone considered connecting a direct supply? It could easily be achieved by tapping into a feed to other places, cheers

I'll bet people have tried it and found either that it made no difference to their riding experience or caused problems. 

Would you tap into the pressure feed to the timing side bush? I've seldom heard the oil pump and bearing feed accused of excess capacity.

How much more oil can you put through the rockers before the guides get over-oiled?  How would you regulate the supply over the range of oil pressures at various RPM?

Online bsa-bill

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Re: BSA If only
« Reply #20 on: 21.03. 2015 11:58 »
I'm with TT, considering the problems occur with people using Goldie studs into the rocker box that have a slightly bigger hole.

Recently gave a second talk to our local U3A around old bikes, this one featured Brough Superior (and Lawrence of course), I played them a video about the SS100 with the rockers merrily clicking up and down in the fresh air -

for interest if anyone would like to see the video, view here https://www.youtube.com/watch?v=VdhgDvc2AWo

I edited out the drunk postman bit, we all know that's not correct
All the best - Bill
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Offline cyclobutch

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Re: BSA If only
« Reply #21 on: 23.03. 2015 13:30 »
The A7/A10 is for sure a real good looking motor. I guess that's why a lot of us are here. I do like the look of the rocker box on the A65 though, so often hidden by the tank - very art deco I think.
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Offline nimrod650

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Re: BSA If only
« Reply #22 on: 26.03. 2015 18:42 »
regarding british bikes i heard a comment the other day why do people spend thousands restoring british bikes they were rubbish when they were brand new and they leaked oil before you put it in shows what the younger generation think today of bikes from the past i dont agree of course we were the best at that time but failed to move on but look at triumph today

Offline Al9000

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Re: BSA If only
« Reply #23 on: 27.03. 2015 08:11 »
I can't work it out from the ad. Is it some sort of special, a Kawasaki with a BSA engine? Or is it an actual model that Kawasaki produced?  I'm new to this classic stuff!  *smile*

Online muskrat

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Re: BSA If only
« Reply #24 on: 27.03. 2015 19:36 »
G'day Al, yes it was a real Kwaka model. The Japanese were quite good at taking other peoples ideas and making them with a few tweaks.
Cheers
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Online Greybeard

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Re: BSA If only
« Reply #25 on: 27.03. 2015 20:25 »
G'day Al, yes it was a real Kwaka model. The Japanese were quite good at taking other peoples ideas and making them with a few tweaks.
Cheers
I'd like to know if the Kwaka sounded like a Brit twin; I suspect it had offset pistons, rather than two together.

Offline Topdad

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Re: BSA If only
« Reply #26 on: 27.03. 2015 23:06 »
yes ,that's true, they took  a dohc cam norton said this the best ,now how dowe make it better ! Likewise two. Strokes ,petrol .. Messy fouls plugs , let's look at that idea velo had in 1926, we'll call it posi -lube , they just did what the UK companies thought that customers didn't need, and that was that . I was in a wonderful position at 17 yrs old , I could ride trumpets ,Volos ,goodies ,plus bsa unit stuff ,but never by choice along with japanese bikes,and I really liked some models. A cb72 sports had me in it's spell I remember and YDs 5's they were good, got a permanent job because of 450 black bomber ( one of the first in the uknearly killed my boss , not the bikes fault by the way ) but they couldn't change my feelings for the A10 ,just simply loved 'em still do, cheers Bob
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Offline nimrod650

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Re: BSA If only
« Reply #27 on: 24.04. 2015 20:02 »
remember the 250 ariel colt the biggest load of rubbish ever built

Online Greybeard

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Re: BSA If only
« Reply #28 on: 24.04. 2015 20:18 »
remember the 250 ariel colt the biggest load of rubbish ever built

I once bought a Triumph 21, (21 Cubic Inches, 350cc) . It had the large rear mudguard so it looked like the Thunderbird but oh my gord what a pile of crap! It was gutless.  *sad2*

Offline ChesterA7

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Re: BSA If only
« Reply #29 on: 24.04. 2015 20:21 »
remember the 250 ariel colt the biggest load of rubbish ever built
I always thought the Colt was 200cc.