do my primary drive sprockets look worn out to you ???

[chicago]

hi again, i did warn you i was going to become a pain  . do my primary drive sprockets look worn out to the expert eye ?.
and if they do would it be a problem getting them new with them being dual drive as all the ones ive seen on ebay upto now have been single drive ones ?
and if it would be a problem or expensive to replace like for like would it be possible to replace the clutch baskget and other sprocket with single drive ones & would there be any dis-advantage having single drive ones ??. cheer's in advance fella's, chicargo

http://i438.photobucket.com/albums/qq110/chicargo/SDC17329.jpg
http://i438.photobucket.com/albums/qq110/chicargo/SDC17327.jpg
http://i438.photobucket.com/albums/qq110/chicargo/SDC17330.jpg

adm edit: direct picture links removed, please use thumbnails only.

[muskrat]

G'day Chicago,
                    looks like they have a bit more life in them. They run in oil and last a long time.
It would be a big job to convert the duplex to a single, the clutch and mainshaft are different. I have heard that a norton clutch will fit on the shaft but I haven't seen one.
Cheers

[duTch]

Yes pretty certain the Norton(diaphragm? been a while since I spelt that) Clutch is the same spline, I had one to do it , but the chainwheel is bigger diameter and wouldn't fit, unless they come in differing sizes for other models -also I think triplex chain. I figured easier to just keep it simple the duplex works ok from memory,and in anticipation.
 

[chicago]

cheer's fella's. so are the duplex sprockets still available n.o.s and any idea of how much they should cost, i have seen a couple duplex ones on ebay but they only look a bit better condition than the ones ive got now. all the best, chicago

[muskrat]

 G'day Chicago, engine sprocket 67-2050 at http://www.british-only.com/webcatalog/01-3.txt , chainwheel (clutch basket)67-3271 haven't seen a new one but Burton Bike bits list a 2nd hand one.
Cheers
Doh, just noticed yours is a long stroke, not sure #'s are the same.

[RichardL]

Muskrat,

Good find, if they actually have it. The price next to it is a hopeful sign. A few years ago, British Only sold their inventory of new and N.O.S. stock BSA parts to Domiracer. I think a lot of their used parts did not go with the sale. The unfortunate thing about both British Only and Domiracer is their severe shortage of photos. I wish they would take a lesson from British Only - Austria as to how to do a website.

Richard L.

[duTch]

Sorry at risk of going of topic!!?? Also in my search for valve collars, which arrived monday and are now in place,I found this site in um...well one of those scandinavian countries(?), but the pictures and numbers I found ok just have to imagine the other stuff and prices don't work for me!!

http://www.basmotor.a.se/

[chicago]

G'day Chicago, engine sprocket 67-2050 at http://www.british-only.com/webcatalog/01-3.txt , chainwheel (clutch basket)67-3271 haven't seen a new one but Burton Bike bits list a 2nd hand one.
Cheers
Doh, just noticed yours is a long stroke, not sure #'s are the same.

cheer's muskrat, all the best, chicago

[chicago]

Yes pretty certain the Norton(diaphragm? been a while since I spelt that) Clutch is the same spline, I had one to do it , but the chainwheel is bigger diameter and wouldn't fit, unless they come in differing sizes for other models -also I think triplex chain. I figured easier to just keep it simple the duplex works ok from memory,and in anticipation.
 

cheer's dutch, i think i'm gonna keep an eye out for a original type, prob less hassle, all the best fella, chicago.