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Messages - ANDY HIGHAM

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Singles / Re: 1960 C15 registered in 1981
« on: 17 August, 2018, 22:29:30 »
My B31 is 1955 according to the frame No, however it is on a G plate 1968

Singles / Re: Clunk into first gear
« on: 09 July, 2018, 13:48:27 »
They take the shock when you dump the clutch

Singles / Re: Clunk into first gear
« on: 09 July, 2018, 13:15:03 »
The clunk going into first is nowt to do with clutch rubbers
When the gearbox is in neutral the clutch and mainshaft are spinning, the layshaft is stopped. When you pull the clutch in, the mainshaft is still spinning by inertia, clutch drag and bearing drag. Engaging the gear stops the shaft as the dogs engage, the clunk is the backlash in the dogs.
Even if the clutch is not dragging there will be drag between the plates due to movement of air and oil.
Suzuki GT380 triples had a clever little brake in the first gear pinion, when you pressed the lever a little arm contacted a plain portion of the gear stopping it from rotating thus stopping the clunk

Singles / Re: Condenser Missing?
« on: 30 June, 2018, 17:46:29 »
Hi, - interesting. As you know I'm having misfiring problems. My condenser is fitted remotely near the coil. Please explain why it needs to be near the points - I haven't heard this before.

Many thanks,

The condensor does not not need to be near the points, it needs to be electrically connected to the points-coil connection. Fitting the condensor near the coil is better because it is not getting cooked by engine heat

Singles / Re: 1946 B31 Crankcase breather
« on: 22 June, 2018, 14:01:01 »
I used the timing cover tapping and made a fitting with a stand pipe on the inside. As you do not have this cover I would try putting a fitting in the tappet inspection cover. No permanent modification to the engine

Singles / Re: 1946 B31 Crankcase breather
« on: 22 June, 2018, 13:53:02 »

Singles / Re: 1946 B31 Crankcase breather
« on: 22 June, 2018, 13:42:25 »
The later flapper valve breather is better but way from perfect. On my B31 I have fitted the reed valve breather from a Yamaha XS650

Singles / Re: C15 misfire
« on: 21 June, 2018, 10:49:32 »
90% of all ignition problems are carb related

Singles / Re: Wheel bearings
« on: 20 June, 2018, 14:18:45 »
Not wishing to go round in circles but...
A parts dealer is going to buy bearings from a bearing supplier or wholesaler like Wassell who will buy from a bearing supplier.
If you buy the bearings from the supplier yourself, you can specify the manufacturer, the fit (std or C3) and the type of seals (none, rubber or metal)
If you buy from a parts dealer you do not know what you will get it could be a good make or something made in a Chinese sweat shop from recycled chopsticks

Singles / Re: Wheel bearings
« on: 20 June, 2018, 12:04:23 »
What guarantee have you that a dealer will supply superior products?
If I order from Simply Bearings or any other supplier I can specify the manufacture of the bearing. If the bearing is ordered from a spares dealer, the bearing will be whatever the dealer buys in, it could be anything

There is no way that a dealer will have bearings made with "special" BSA wheel bearing grease

Singles / Re: Wheel bearings
« on: 20 June, 2018, 10:11:56 »
Don't go to a motorcycle spares shop with that part number
Instead go to an engineering suppliers or bearing specialist and order 6204 2RS. These will have rubber seals to keep the grease in and the muck out

Twins / Re: A 65 Rebores and re-sleeves
« on: 18 June, 2018, 13:53:31 »
Be aware that to sleeve a barrel will require boring it to around 6mm over size. Some BSA barrels do not have a lot of "meat" in the area above the base flange and have been known to part company.

Singles / Re: B31 not starting
« on: 16 June, 2018, 22:12:40 »
I have an infallible method of starting my B31
I turn the fuel on, put the choke on (Mikuni carb), turn ignition on, pull the valve lifter, press the red button, release the valve lifter then release the red button as it starts

Singles / Re: Latest photos of my B31
« on: 09 June, 2018, 21:36:30 »

20180609_152516 by Sigma Projects, on Flickr

Singles / Re: Victor Special zener diode
« on: 09 June, 2018, 20:10:28 »
A 12v zener is no use at all, it needs to be 14v. 50w is in danger of turning into smoke with a 60w alternator

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