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91
British Bikes / Re: Whats this Bike please .
« Last post by R on May 19, 2021, 04:41:23 AM »
A view of the whole bike could be most helpful !

Graces Guide sez that OEC resumed postwar bike manufacture in 1949 and ceased by 1954.
Take these dates with a grain of salt ?
92
British Bikes / Re: Whats this Bike please .
« Last post by Caineshaw on May 19, 2021, 02:27:25 AM »
Cheers Leon
Its turning into an enjoyable excercise . The frame colour is an interesting shade of green but the internal front brake hub is a maroon colour . I also believe that it hasn't actually done that much run time from the look of the clutch, brakes and bearing grease .
93
British Bikes / Re: Whats this Bike please .
« Last post by cardan on May 19, 2021, 02:21:52 AM »
Hi Ken,

Ten years ago our resident Villiers expert 33d6 pointed out that the engine prefix 763 was used on Villiers 10D engines supplied to OEC in 1949-50. http://classicmotorcycleforum.com/index.php?topic=3659.msg12565#msg12565

He might be able to help with frame numbers when he reads this.

Cheers

Leon
94
British Bikes / Whats this Bike please .
« Last post by Caineshaw on May 19, 2021, 01:58:50 AM »
Hi I have recently purchased a classic 122cc bike from the late 40s early 50s , It was advertised as an Excelsior but in doing some research i believe it may be something else . The Engine number is 763 2798 and the frame number is TUD / 1243 . I have managed to reconnect the ignition system and have spark at the plug .
Bike is located in New Zealand
Cheers Ken
95
British Bikes / Re: Tiger 100 68
« Last post by R on May 18, 2021, 10:49:15 PM »
A trace of burnt oil can leave a sooty or dirty plug.
I found this out with a Commando, where one oil seal had 'fallen off' the guide.
Usage was too small to be noticeable/measurable. And not noticeable to the rider.

If you have someone follow you though, they may observe a puff of blue smoke now and then.
If its on acceleration its rings, on deceleration its valve guides is the general guide.

It may improve with more running in though.
Have you given it a few BRIEF bursts of full acceleration to bed the rings in like the instructions say ?

Try swapping the plugs over too ...

96
British Bikes / Tiger 100 68
« Last post by dynamic on May 18, 2021, 06:50:35 PM »
having now done just 1000 miles on my machine since a full rebuild SRM timing side bearing / new sludge trap / crank regrind / rods /new cylinder / hepolite pistons / rings / head uprated to unleaded / valves /guides / springs / Morgo pump ( dust caps were within parameters )
I do find after a run of 60 miles + ( champion N 4s ) the right hand plug is always sooty ? left plug is always a nice light brown electrode dark outer ( no soot at all )
I have a new  concetric 620 on 180 main needle on middle groove starting is good tick over regular running Boyer charging is 14.4 + volts when revved
just curious about this uneven mixture situation ?

all input gratefully received
PS engine is not using any oil I have just changed from Morris running in grade to Morris gold 40 air filter is a standard new unit
97
Autojumble / Re: looking for rear plungers for james cadet j5 1952
« Last post by TGR90B on May 17, 2021, 09:20:40 AM »
Sensible suggestions, otherwise you're going to spend the rest of your life peeing into the wind.
98
Autojumble / Re: looking for rear plungers for james cadet j5 1952
« Last post by Rex on May 17, 2021, 08:42:53 AM »
Going for a complete frame is probably the sensible option. Even for BSA plunger-framed bikes (which are obviously much more common) there's rarely plunger units for sale.
99
Autojumble / Re: looking for rear plungers for james cadet j5 1952
« Last post by R on May 17, 2021, 06:07:33 AM »
Can I ask why you need them? What is wrong with what you have?

Perhaps that is the question we should have asked to begin with ?
100
Autojumble / Re: looking for rear plungers for james cadet j5 1952
« Last post by 33d6 on May 17, 2021, 05:16:26 AM »
Iíd do the obvious. Hunt for a complete frame then sell off what you donít want. As a past owner of a plunger frame James I can say I never saw plunger units sold as separate units from the frame they left the factory with.
Much easier (and probably cheaper) to buy a tatty frame with plungers in place.
Can I ask why you need them? What is wrong with what you have?
Cheers,
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