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Technical Section / Re: Ammeter on C11 for French Market
« Last Post by mJmDFr on Yesterday at 11:23:01 am »
Hello Roger,
Many thanks for having taken the time to share your experience with your C11. I don't actually own a C11 myself, I was asking on behalf of a French man who doesn't speak English and couldn't get to the bottom of what the part on the back of his ammeter was! I offered to help by posting on this English forum and the matter is now resolved as a result! I'm sure there must be numerous people in your area with British bikes, although I'm not entirely sure how you would get in touch with them. Perhaps look out for rallys or ride-outs once the confinement is lifted! Sending you my best regards!
Technical Section / Re: Sprockets repair
« Last Post by Bentaxle on Yesterday at 12:07:21 am »
Thomas the steel in the original piece was hard.  The machinist thought it was perhaps 4140 steel that had been hardened, and he used a ceramic cutting tool that worked fine.  The new sprockets were hardened near the teeth but not as bad in the area that was cut.

Technical Section / Re: New to me BSA C11, questions
« Last Post by johnintexas on May 27, 2020, 07:49:09 pm »
It's odd that I have the front stays but not the fender and the rear fender is an odd duck with only part of the original L shaped bracket there.
Thank for your input, I will check out previous discussions on the matter.
John in Texas
Technical Section / Re: New to me BSA C11, questions
« Last Post by ROB KEMP on May 27, 2020, 07:39:38 pm »
I bought a pair of india mudguards I have had them before the actual product is not that bad better than beaten up rusty ones .What you will find is the front is ok but the rear is for a rigid back end the rear section is bolted not hinged ,The mudguard stays are made from tube not pressed flat so they didn't get used by me . You will need to panel beat slightly to fit, mine didn't fit between the fork legs nicely .
Technical Section / Re: New to me BSA C11, questions
« Last Post by timsdad on May 27, 2020, 05:11:37 pm »
There have been several previous discussions on these Indian-made mudguards, John, so you could check back using the search doo-dad.

I think it's a matter of luck whether you get Oriental tinware to fit reasonably well because the chap who sits cross-legged in the street making it usually has no idea what he's making. At least mudguards can't leak like their tanks.

Technical Section / Re: New to me BSA C11, questions
« Last Post by johnintexas on May 27, 2020, 05:03:32 pm »
I came across a web site selling front / rear fenders with stays for a C11 while surfing Ebay.  Has anyone used these fenders and stays?   I expect they are made in India and wanted to know what you think of them and how was the fit?  I tried to copy and paste the ad but all I got was the text. They sell here under vintagebikeusa. 

John in Texas

Technical Section / Re: 1956 c10 carb adjustment
« Last Post by Andy L-S on May 27, 2020, 01:36:49 pm »
thanks everyone, think the problem was a vapour lock due to vent hole being blocked in fuel cap :)
Technical Section / Re: Sod to Start
« Last Post by ROB KEMP on May 27, 2020, 01:33:12 pm »
That's the difference between supermarket and premium brands the petrol comes from the same tanks but premium grade has additives .
Technical Section / Re: Sprockets repair
« Last Post by chaterlea25 on May 27, 2020, 01:15:54 pm »
Hi All,
I have gone through this job a fair few times but ran into problems when 're toothing the gearbox sprocket for the 24 BSA!!!
The replacement sprocket was one I picked up at Stafford, it a hardened speedway item,  The original BSA was also hardened,
Grind and turn to a stepped fit, 
Every type of TIG welding rod  we tried immiedly cracked on the weld
Eventually I got some 312L stick rods
that are for dissimilar or problem steels
They worked a treat and easy to machine flush when finished
A bit of research revealed that the same grade is available for TIG welding

Technical Section / Re: Sprockets repair
« Last Post by Cosmikdebriis on May 27, 2020, 12:01:14 pm »

nasty cast iron


Thanks for the memory. A few days back I ended up machining quite a large diameter cast iron back plate to fit an even larger (10") 4 jaw chuck.

Despite wearing a mask and eye protection i woke up the next morning thinking i'd contracted Covid-19. >:(

On the brighter side. Won't need to take any iron supplements for the next six months ;D
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