AJS Matchless 250

Jeffrey · Post by **Jeffrey** » Tue Feb 21, 2012 11:18 pm

ignore last post

T · Post by T » Sat Apr 07, 2012 4:58 pm

* note - CSR's also have a different oil punp plunger , it has a slightly longer stroke / increased oil rate . This is because extra oiling holes were added to the cam chest to lubricate the followers . I don't have both types to hand but i believe the only difference is the eccentric groove where the retaining pin goes , which MUST be in good condition , NO FLAT SPOTS !( both types fit - there can be a danger of the flat not matching the drilled feed hole . * under oiling is less of a risk nowadays , modern oils do help here !)Edited by - T on 07 Apr 2012 4:03:12 PMEdited by - T on 07 Apr 2012 5:10:15 PM

borrowashboy · Post by **borrowashboy** » Mon Apr 09, 2012 8:15 pm

also noticed on my csr crank that there is an extra turn on the worm drive to the oilpump
cheers, bb.

spindle · Post by **spindle** » Tue Apr 10, 2012 8:13 am

Higher gearing, longer bigger inlet Valve, vented front hub, larger jets, in carb, inreased size in carb bore to 1 1/8

did you know in 1963 The ajs 250 csr won the Thruxton 500 Producers indurance race

spindle · Post by **spindle** » Tue Apr 10, 2012 8:18 am

THRUXTON 500
and spec's for the 250csr

http://www.mc-albion.dk/AMC/Promotional ... e_1966.pdf

spindle · Post by **spindle** » Tue Apr 10, 2012 8:26 am

The one for sale on Ebay belongs to a club memeber it Had a total nut and bolt restoration 3 years or so ago There are a few pictures of Nigels bike In Photo's he made such a Great Job of classic bike featured it

Jeffrey · Post by **Jeffrey** » Tue Apr 10, 2012 2:26 pm

thanks for all the replies folks i have got one now part finished 1964 crs going together nicely few bits missing but getting there

Ian5913 · Post by **Ian5913** » Tue Apr 10, 2012 3:10 pm

Well good luck with it Jeff, don't be shy a picture or two would be good and if you want advice (good or bad) just ask on here.

Ian

SideValve · Post by **SideValve** » Tue Apr 10, 2012 9:04 pm

The other difference is of course The Price.
You'll pay a lot more for a genuine CSR
And there will be plenty of people happy to try to sell you a bodge job pretending to be a CSR

Personally, if performance is important, I'd buy a bigger bike. And if its not I'd buy the standard version and maybe a James with the change

Ian5913 · Post by **Ian5913** » Tue Apr 10, 2012 9:28 pm

You will pay a lot more for any CSR in the range of AMC. THE LW CSR is no exception. There are some nice ones around, I am sure many a crankcase has made it in to many a different frame over the years, but that happened as much in 1966 as it does now, a good sporting 250 and a good looking bike. See attached, I think this was the ED's old bike, it used to have indicators in those days.

Ian

https://picasaweb.google.com/1050863888 ... 4402Edited by - Dean5913 on 10 Apr 2012 8:30:52 PM