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by Bob.Murphy
Sat Jun 08, 2019 10:43 pm
Forum: Four stroke
Topic: Thorspark Electronic Ignition on a VH
Replies: 24
Views: 826

Re: Thorspark Electronic Ignition on a VH

That's very interesting, Will - thanks for that. I re-read the Thorspark fitting instructions and it definitely says (not verbatim) "The magnetic trigger for a single cylinder motor has two magnets, do not remove one of them". I wonder if it is for balance, in which case replacing it with ...
by Bob.Murphy
Sat Jun 08, 2019 10:16 am
Forum: Four stroke
Topic: Thorspark Electronic Ignition on a VH
Replies: 24
Views: 826

Re: Thorspark Electronic Ignition on a VH

Thanks Nev. I had thought about retarded ignition but the bike kicks back when starting. On two occasions it has kicked back and then run - which is probably a symptom of the lost spark. I have never investigated the valve timing since acquiring the bike back in 2013, I have assumed it was standard ...
by Bob.Murphy
Fri Jun 07, 2019 11:03 pm
Forum: Four stroke
Topic: Thorspark Electronic Ignition on a VH
Replies: 24
Views: 826

Thorspark Electronic Ignition on a VH

I've been playing about with my 'VH' again . . . After fixing the tank, machining the barrel top face to fit the head without a copper gasket and fitting a 7.5:1 piston I had it running with a re-built MO1 Mag that had a 'Brightspark' condenser. The Dynamo is now running at 12 volts and the bike has...
by Bob.Murphy
Thu Jun 06, 2019 10:27 am
Forum: Main Chat Forum
Topic: Man and sloper come a cropper.
Replies: 14
Views: 869

Re: Man and sloper come a cropper.

The picture in the paper is a library photo - not the actual bike so no clues there (I had a search through the 2019 Sloper Calendar before seeing that small print :roll: ).

Someone must know. Best wishes for a full recovery whoever you are.

Bob.
by Bob.Murphy
Sat Jun 01, 2019 10:10 am
Forum: Main Chat Forum
Topic: Returned from Australia
Replies: 35
Views: 1005

Re: Returned from Australia

More Australian humour:

Anti-theft Device.jpg
Anti-theft Device.jpg (52.56 KiB) Viewed 142 times



Australian Signatures.jpg



Badgers Arse.jpg



Serial Killers.jpg



Fostered Dog.png


Bob.
by Bob.Murphy
Fri May 31, 2019 10:06 am
Forum: Main Chat Forum
Topic: Returned from Australia
Replies: 35
Views: 1005

Re: Returned from Australia

nevhunter wrote:Understanding the Australian "sense of humour" is virtually impossible, unless you grew up with it. Don't try. Nev


;) (from an Australian member of The Landcruiser Club - most are too non-PC for this forum :lol: ):

Animals in Australia.jpg


Bob.
by Bob.Murphy
Thu May 30, 2019 10:39 am
Forum: Four stroke
Topic: Shock absorber knocking
Replies: 56
Views: 1776

Re: Shock absorber knocking

you could always try this - again from the Sq 4 Workshop manual. No idea if works. Have I got this right, now ?? - The "MkII Valve Guide Modification" is the addition of the sleeve over the inner valve spring. Which begs the question - Does the modification introduce the cylindrical-toppe...
by Bob.Murphy
Wed May 29, 2019 10:36 pm
Forum: Four stroke
Topic: strange cutting out incident
Replies: 8
Views: 349

Re: strange cutting out incident

Air vent in the petrol filler cap ??

Next time ( :roll: ) check for a spark as soon as it stops.

Bob.
by Bob.Murphy
Wed May 29, 2019 5:18 pm
Forum: Four stroke
Topic: So it begins
Replies: 56
Views: 2220

Re: So it begins

I thought the Ariel Club had them made :? .

Someone was advertising a new set of club rods recently (Roland Robinson perhaps). I would go for new if possible.

Bob.
by Bob.Murphy
Wed May 29, 2019 5:15 pm
Forum: For sale/wanted - Parts
Topic: Looking for an Internal throttle
Replies: 6
Views: 587

Re: Looking for an Internal throttle

Vincent.vanGinneke wrote:Laid back dude explains how to make one from scratch.
https://www.youtube.com/watch?v=4fps6cC3ko8


Oh Yuck :shock: - that's horrible.

I think I can do better than that (I would hope that the throttle would shut when you let go of it).

Bob
(mechanical snob :lol: ).

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