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Blown fuses

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Bryanj:
Disconnect ignition switch and see if it blows then

Oggers:
Gents

Many thanks for all your kind replies - to answer

Disconnect ignition switch - Fuse only blows when ignition turned on.
Blow with other uses removed? - Don't know, haven't tried, but other as fuses are a separate circuit, i imagine it  would
Switchgear wiring - My prime suspect, but I did disconnect all of it and the lamp still lit across the fuse terminals. I'll try it again though...
3 fuses 2 x7A 1 X15A
Fuse holder etc - yes , i'll take a look at it. Could be short behind it/on it.

My basic plan is to place the tail lamp across the fuse terminal, ignition on, and just go through stuff until it goes out - or dims considerably. Bike all worked fine before disassembly, so I am thinking it can only be electrical stuff that I have touched! Switchgear mainly.....   

Orcade-Ian:
Hi Mark,
Your bike is a US import which would once have had daytime running lights at the front with twin filament indicators.  Have those wires from that system got mixed up with some others, especially earths?  Can’t remember the colours of those though.

Ian

Oggers:
Gents

Back to basics I feel, and in order to substatiate my thinking - or not as the case may be!

Why does a 35A fuse blow when ignition is on! Not getting that at all. There is nothing in that fuse circuit pulling that much amps just when ignition is on and nothing energised - like starter or some such.? If there is a short somewhere, then it surely would not blow a 35A fuse?

Is my theory of the tail lamp being brighly lit when ignition is on a true indication of a short? If ignition is on, there would be power across the fuse anyways...

Deeply confused....

Ian - Hello! I knew I shouldn't have fiddled! I'll check all the wiring in the shell - again - but it was all labelled up and went back the same way. headlamp and the wiring connector are currently off the bike...

Incidentally, when ignition tereminal connector is pulled, light goes out - which to me is hardly surprising as I am thinking the ignition swtich is the feed latch for the fuse. Does this indicate anything else though?

Bryanj:
Somewhere a wrong wire is connected to a black wire OR a black wire is trapped.
To sort this you need to be VERY methodical.
 Disconnect everything yes i mean EVERYTHING Take mutimeter set on low ohms and check reading when leads connected together, treat this as zero. Connect the black lead to a good earth and start testing with red lead first to all red points then turn ignition on and all black points.
Report back as full procedure to much to assimilate in one go.
You should be seeing infinite resistance(super high)

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