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Messages - bikerbob

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106

British Bikes / 12v DUAL COIL

« on: March 03, 2010, 07:14:42 PM »

Hi there
I have just purchased a 12V DUAL COIL for my 1963 BSA A65 which I am restoring and converting to 12V and PAZON electronic ignition my question is the spade terminals on the coil are not marked positive and negative but the wires supplied are yellow and black so does it matter which wires go on which terminal. THANKS

107

British Bikes / Re: BSA A65 PISTONS

« on: November 22, 2009, 03:22:05 PM »

Thanks for the reply. There is some confusion about compression ratios for the A65 Star Twin I have a BSA instruction book which lists the compresson at 7.25 but a BSA Workshop manual for the same year lists it as 8.00 also Roy Bacon's book lists the part numbers for the different compression ratios from7.25 upto 11.00 but no mention of 68 0251.

108

British Bikes / BSA A65 PISTONS

« on: November 21, 2009, 06:20:18 PM »

I am restoring a1963 BSA A65 Star Twin and having removed the head and barrels the pistons are stamped BSA 68-251 now according to the books they should be 68-250 standard 68-252 first rebore 68-254 second rebore. I cannot find anywhere a record of 68-251 can anyone tell me what these pistons are. Also on the crown is stamped V30 7/62 M I understand that the 7/62M is the month and year that they were made and the M has something to do with boring out of the cylinders. 68-251 is also cast onto the flats on side of the pistons next to the gudgeon pins.

109

British Bikes / Re: Advice Norton Commando Interstate 1972

« on: September 21, 2009, 04:16:48 PM »

Thanks for the speedy reply.

110

British Bikes / Advice Norton Commando Interstate 1972

« on: September 21, 2009, 03:42:00 PM »

Norton Commando Interstate 1972
Could someone advise please, I am considering buying the above bike that needs total restoration. The bike is all there but it has a twin leading shoe front brake, all bikes that I have seen of that era have got a disc brake on the front. Did they produce any with drum front brakes. Thankyou.