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#502944 - 08/22/13 7:25 pm BSA A65 Flat track style primary cover  
Joined: Sep 2004
Posts: 83
Bigdook Offline
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Bigdook  Offline
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Posts: 83
Scotland
Hello all,
Any idea where I could obtain one of thoses
slimmed down flat track style primary chain case covers.
Cheers

#502978 - 08/23/13 12:08 am Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Aug 2006
Posts: 259
HUGOCT Offline
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HUGOCT  Offline
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Posts: 259
FLOWERMOUND, TEXAS, 75022, USA
You cannot run an alternator with a flattrack primary cover
Back in the day your choices were:
Trackmaster or Kosman fabricated from flat plate and two derbys welded on to clear the clutch and crank end
Kosman fabricated with two spun aluminum derbys held on by allen bolts
ACK cast primary as used by Jim Rice and Dick Mann (Ray Abrams at A&A has threatened to repo these for years...he has my spare as a sample)
Carl's Sport Shop cast primary as used by David Aldana
Smitty of Rock Island cast primary used by Mickey Green
None of these are currently available although there are a number available for Triumph 650s
So your choices are
Buy a Triumph
Try to modify a stock primary cover
Watch eBay and be prepared to spend $300-400 US
Contact Sandy Kosman regarding having one welded up

Last edited by HUGOCT; 08/23/13 12:11 am.
#503053 - 08/23/13 2:25 pm Re: BSA A65 Flat track style primary cover [Re: HUGOCT]  
Joined: Sep 2004
Posts: 83
Bigdook Offline
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Bigdook  Offline
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Scotland
Thanks for the info. Looks like I'll be fabricating one.

#503105 - 08/23/13 11:15 pm Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Aug 2006
Posts: 259
HUGOCT Offline
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HUGOCT  Offline
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FLOWERMOUND, TEXAS, 75022, USA
you need to switch over to Triumph 2 row or Goldstar single row or space out the cover to clear the 3 row

Last edited by HUGOCT; 08/23/13 11:15 pm.
#503169 - 08/24/13 2:03 pm Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: May 2013
Posts: 4,533
Allan Gill Offline
Allan Gill  Offline



Joined: May 2013
Posts: 4,533
Rotherham - S. Yorkshire
this might be a bit of inspiration for you

http://www.eBay.com/itm/1965-BSA-Engine-650cc-Race-Engine-Lightening-Rocket-BSA-A5-/130963550899?pt=Motorcycles_Parts_Accessories&fits=Make%3ABSA%7CModel%3AA65&hash=item1e7e0932b3&vxp=mtr


beerchug
#503427 - 08/26/13 3:13 pm Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Aug 2006
Posts: 259
HUGOCT Offline
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HUGOCT  Offline
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FLOWERMOUND, TEXAS, 75022, USA
one of the crucial functions of a flattrack primary is to protect the crank end and clutch in case of a low side get off
the other is to provide ground clearence in high traction events (Ascot would be a good example)
One low side with that setup and you may have a bent crank

#504317 - 09/02/13 2:49 am Re: BSA A65 Flat track style primary cover [Re: HUGOCT]  
Joined: Aug 2001
Posts: 1,105
J in KC Offline
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J in KC  Offline
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Kansas City, USA

Some visual aids.









Sorry about the focus on this one, I believe it's a "Carl's Sport Shop".

#504345 - 09/02/13 10:03 am Re: BSA A65 Flat track style primary cover [Re: J in KC]  
Joined: Aug 2006
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HUGOCT Offline
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HUGOCT  Offline
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Posts: 259
FLOWERMOUND, TEXAS, 75022, USA
#s 10 and 44 are ACK covers
#44 is an X Jim Rice factory BSA
#62 is a Smitty's Rock Island cover
#50 is the 3rd version of the Carl's Sport Shop cover

#504347 - 09/02/13 10:19 am Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Jul 2002
Posts: 604
Tom_dup1 Offline
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England
On the subject of Jim Rice, I was looking at a picture of him after winning a flat track race in I think 1969 in an old Classic Bike last night. His bike had what looked like a second clutch lever on the left bar sticking up at the same angle as the clutch lever faced down. What would it have been, decompressor?

Thanks

Tom

Last edited by Tom_dup1; 09/02/13 10:19 am.
#504389 - 09/02/13 3:03 pm Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Aug 2006
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HUGOCT Offline
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HUGOCT  Offline
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FLOWERMOUND, TEXAS, 75022, USA
rear brake...used same setup on the 3 cylinder dirttracker

#504428 - 09/02/13 7:07 pm Re: BSA A65 Flat track style primary cover [Re: HUGOCT]  
Joined: Aug 2001
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J in KC Offline
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J in KC  Offline
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Kansas City, USA



#504503 - 09/03/13 7:11 am Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Jul 2002
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Tom_dup1 Offline
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England
Thanks Guys! So was it just rider preference rather than having two levers (brake and gear) for the right foot?

Tom

Last edited by Tom_dup1; 09/03/13 7:19 am.
#504584 - 09/03/13 5:39 pm Re: BSA A65 Flat track style primary cover [Re: Tom_dup1]  
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HUGOCT Offline
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HUGOCT  Offline
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FLOWERMOUND, TEXAS, 75022, USA
The 1969 season brought big changes (AHRMA thinks this happened in 1968) 750s were allowed regardless of configuration, rear wheel brakes were allowed and Trackmaster frames appeared
There were a lot of new bikes with a variety of approaches
Some guys went hydraulic, some guys even had cable operated calipers, some guys left the brakes off, some used Hbar mounted master cylinders from the CB750, some had a second clutch lever, some had a foot lever and one great even operated the pedal with his heel
Interesting times indeed

#504630 - 09/04/13 12:26 am Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: Aug 2001
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Dennis M Offline
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Dennis M  Offline
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California, USA
Try Mold Trends,Inc at 203.483.1420 they have been making flat track primary cases for Triumph and may also have them for BSA now.


Dennis M
#504677 - 09/04/13 10:27 am Re: BSA A65 Flat track style primary cover [Re: Dennis M]  
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HUGOCT Offline
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HUGOCT  Offline
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FLOWERMOUND, TEXAS, 75022, USA
Bruce doesn't have them now
Maybe in about a year frown

#517414 - 12/04/13 6:15 pm Re: BSA A65 Flat track style primary cover [Re: HUGOCT]  
Joined: Feb 2005
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Richard in Wichita Offline
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Wichita Kansas USA
http://www.eBay.com/itm/281221075876?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

Here is a BSA Flat Track primary cover for sale . May have to copy/paste

#517417 - 12/04/13 6:36 pm Re: BSA A65 Flat track style primary cover [Re: Bigdook]  
Joined: May 2005
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shel Online content
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ohio


When given the choice between two evils I picked the one I haven't tried before
#705281 - 08/17/17 6:09 am Re: BSA A65 Flat track style primary cover [Re: Tom_dup1]  
Joined: Jun 2011
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ChuckLantz Offline
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California
Originally Posted by Tom_dup1
Thanks Guys! So was it just rider preference rather than having two levers (brake and gear) for the right foot?

Tom


A late reply is better than no reply, right? Anyway, back then there a few different ways to setup a rear brake on flat-trackers, since even having a rear brake was something new. I used the same setup as Rice, adding a second lever on the left handlebar to control the rear brake. I'd tried it first on my 250cc short-tracker, and it worked great, so I did it on my "big bikes". The now-common setup of having both the rear brake lever and shifter on the right foot was used by a few guys, but it hadn't been perfected yet. One thing to consider is that most of us were still running drum rear brakes, which required a much longer lever to take up slack when they began to fade. The short levers used with discs make it easier to have a brake and shifter on the right. That slack could easily be adjusted with your left thumb on a star wheel adjuster using a left handlebar lever.

Most riders just used the standard left foot brake pedal, braking only until it was time to put your left foot down. I tried that a few times at first, but "feeling" the pedal with a steel shoe on was impossible. I hope this helps.


Moderated by  Allan Gill 


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