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Messages - ANDY HIGHAM

Pages: 1 [2] 3 4 ... 10
16
Singles / Re: Ignition Timing
« on: 21 February, 2019, 20:08:11 »
It is more common to set the timing in the fully advanced position, the advanced position is much more important than the retarded

17
Singles / Re: C15 petrol tap
« on: 19 February, 2019, 14:39:32 »
What the hell were they made from?

Common rubbers used for seals and O rings
EPDM,  Ethanol excellent, Petrol unsuitable
Viton, Ethanol moderately suitable, petrol excellent
Nitrile, Ethanol excellent, petrol excellent

From this I would deduce your seals are EPDM rubber and the petrol has knackered them, not the ethanol

18
Singles / Re: Battery condition
« on: 14 February, 2019, 10:10:01 »
A fully charged battery should read 13.8v - 14.4v.
If you put a voltmeter on the battery while it is still on the bike, turn the ignition on, ideally you should still have over 13.5v, turn the headlight on the voltage should still be over 12.5v, press the starter button and you should still have over 11.0v while cranking

20
Singles / Re: oil feed 1 way valve
« on: 04 February, 2019, 12:33:24 »
An radical alternative solution to the problem
Most BSA's have an anti wet sump valve fitted on the pressure side of the oil pump, why not clean and reseat the ball?
Anything fitted on the suction side of the pump is a wrecked engine in waiting

21
Singles / Re: Tool to remove B31 oil tank filter (swinging arm)
« on: 04 February, 2019, 11:58:58 »
I have just measured mine, it is 32.85mm
a 33mm socket will be fine if you cannot find a 3/4"BSW socket

22
Singles / Re: Tool to remove B31 oil tank filter (swinging arm)
« on: 03 February, 2019, 21:25:58 »
same socket as the fork top nuts

24
Singles / Re: Oil priming
« on: 03 February, 2019, 16:11:22 »
Don't come on here crying when you forget to turn the tap on and wreck your engine.
There is usually a ball and spring in the front of the timing cover to prevent wet sumping

25
Singles / Re: Modern day usability of big singles
« on: 02 February, 2019, 21:55:25 »
I would say anything over 650 is big,
Suzuki made a big single, the DR750 but that is tiny compared to this https://thekneeslider.com/nsu-2000cc-single-cylinder-motorcycle/

26
Singles / Re: Modern day usability of big singles
« on: 01 February, 2019, 22:34:58 »
Not by any stretch of the imagination would I describe a B31 as a "big single"

27
Singles / Re: Identifying a Gold Star 350
« on: 28 January, 2019, 19:30:33 »
Mostly yes
some years have different rod lengths
some have different camshafts and crank gear
350s have smaller valves

28
Singles / Re: Identifying a Gold Star 350
« on: 27 January, 2019, 20:05:28 »
The biggest difference between a Gold Star frame and a B31 frame is the footrest lugs. Yours look home made, the standard ones are the same pressings as the pillion lugs with an additional plate with a hexagonal hole welded on.
To be brutally honest, yours is a B31 with a Goldie engine, just enjoy it, ride it and ignore the rivet counters.
This is also a B31 both frame and engine
20180609_152238 by Sigma Projects, on Flickr

29
Singles / Re: Help. Just attached battery wrong way round
« on: 14 January, 2019, 19:40:16 »
Connecting the battery wrong polarity will allow current to flow through the rectifier and alternator. The alternator may have been damaged as may the wiring between alternator, rectifier and battery. The rectifier should be ok though.
ALWAYS FIT A FUSE

30
Singles / Re: Won't start
« on: 04 January, 2019, 13:48:03 »
A spark outside the combustion chamber is no guarantee that it will spark inside with fuel and compression.
The battery voltage should be around 7 volts. Measure it with the ignition on and points closed it should still be over 6.5V

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