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91
British Bikes / Re: AJS 16M 1951
« Last post by R on July 25, 2025, 08:48:54 AM »
So can you now kickstart it OK ?

Is that a fast click click, or slow
The chain contacting something could be a slow click,
but a fast one needs further investigation.
Even the tyre contacting something

Don't recall, is this bike new to you.
Some fettling is to be expected....

P.S That box is later than the CP expected for 1951 ?
92
British Bikes / Re: AJS 16M 1951
« Last post by dynamic on July 25, 2025, 08:11:26 AM »
thanks for the input R I took the outer case off & and all looks in order ,HOWEVER now when I wheel the bike along I get a click click click from the g/box area ?
 this happens in both forward backward motion .............rather confused ?
93
British Bikes / Re: Hot Start Problem
« Last post by Billington on July 24, 2025, 09:20:41 PM »
Thank you for your kind advice my BSA is now running better than it ever has. Advancing the magneto timing a little has ensured that it’s now in the sweet spot.
94
British Bikes / Re: AJS 16M 1951
« Last post by R on July 24, 2025, 08:55:46 AM »
If you google this problem, its exceedingly common with Burman boxes. !

The solution is to grind down the 1st tooth on the quadrant, and the 2nd tooth a bit.
Assuming you haven't reversed it from its original fitting.
Which can also be a fix.

Pulling the clutch in when this happens can also sometimes free things off.

95
British Bikes / Re: AJS 16M 1951
« Last post by dynamic on July 24, 2025, 08:13:47 AM »
Hi R yes tried rocking in gear still no joy
96
British Bikes / Re: AJS 16M 1951
« Last post by R on July 23, 2025, 10:39:52 PM »
Have you tried turning the engine/gearbox over, via the back wheel. ?
And seeing if that makes any difference.

It sounds like the kickstarter is not meshed or located correctly.
Let me find the Ajay booklet to refresh the grey cells, if someone doesn't chime in sooner.
97
British Bikes / Re: AJS 16M 1951
« Last post by dynamic on July 23, 2025, 03:05:55 PM »
kickstart has now decided to jam in upright position will not engage its solid just about an inch movement down before going solid ,it does spring back to resting position

anyone experiensed this at vall ?
98
British Bikes / Re: AJS 16M 1951
« Last post by dynamic on July 23, 2025, 12:37:54 PM »
FINALLY STARTED before I was not allowing for gear backlash only setting to 7/16 BTDC, going further back then coming up to my gauge mark made all the difference

thanks to all who posted sound advice .
99
British Bikes / Re: AJS 16M 1951
« Last post by R on July 23, 2025, 11:01:38 AM »
Good call. ?
On a twin, you'd just swap the plug leads over.

But 4 stroke singles don't work like that.
100
British Bikes / Re: AJS 16M 1951
« Last post by cardan on July 23, 2025, 04:55:25 AM »
Double check that you have set the spark on the firing stroke, when both valves are closed.

Leon
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