Does anybody know how to wire out that massive black box near the bottom yoke? The indicators on my bike only work when they want to & I think the fault is in the box. The problem is that with 10 wires coming from the thing it looks like it might be a bit of a job! And if it contains relays does that mean I would have to change the switchgear? Or fit more relays?
Hi Kevin;
Nice to meet you at the AGM last Sunday...
How do(es) the indicator fault(s) present..?
When I bought my V1000 it displayed two or three indicator faults... The lights would only flash "sometimes", they wouldn't turn off "sometimes" and they never turned off "automatically".
The first fault was a bent pin in one of the multi-pin connectors in the headlamp cowling
The 2nd fault was a broken handlebar switch - bodged by a previous owner - I repaired it properly...
The 3rd fault is still there... I suspect the speedo-driven switch is Kaput...
So... What's happening with yours..?
Jeff
I decided to have a look-see at this system... There's a similar one on my XS1100 and it would be good (for me) to know if the tiny XS1100 self-cancelling unit could be used in place of the HUGE Hesketh one...
There are a number of components involved here:
- Self Cancelling Indicator Unit
- 2-Pin Indicator Relay
- Self-Cancelling Pickup Switch
- Left Hand Handlebar Switch
- Fusebox (Fuse No. 5)
After studying the wiring diagram and plug pin-out diagrams, I came up with this:
(http://iloapp.empressmcc.org.uk/data/_gallery/public/11/139724273512923700_resized.jpg) (http://iloapp.empressmcc.org.uk/data/_gallery/public/11/139724273377041200_resized.jpg) (Click on this thumbnail image to see a full sized example).
This wiring list and the accompanying diagram match the wiring diagram and plug pin-outs...
Edit: 11/04/2014This is the Mk II version... After chatting with Dave H (Snr) it became clear that there is a common connection within the harness for the Orange/Red "Signals" feed. It's from this that the unit gets its power - same as the flasher relay, the feed to the horn and LHS H/Bar Switch...
Hope this helps
Jeff
Hi Kevin,
I had one of these black boxes play up years ago. I was told they're a Suzuki unit and very rare.
I believe Dave Sharp actually made some for Mick Broom - maybe we have to pick Dave's brains and as a club get some made.
At the time I was looking Mick was at Turweston and didn't have any good or failed units - if he'd had a failed unit I'd have bought it for the connectors and tried to make one.
As it happens I bought an original Hesketh spare unit from a member in Leeds - he's since sold his Hesketh and spares.
I know the units are very voltage sensitive, so make sure all the connectors and switches are clean.
Jeff - since you phoned, I've looked at the wiring diagrams.
Fuse 5 has two Orange wires leaving it.
One to the Turn signal switch and one to the Indicator self cancelling unit.
Does that make sense?
Dave H
Quote from: Dave Snr on April 11, 2014, 12:45:24 PM
Jeff - since you phoned, I've looked at the wiring diagrams.
Fuse 5 has two Orange wires leaving it.
One to the Turn signal switch and one to the Indicator self cancelling unit.
Does that make sense?
Dave H
It would make sense... But the diagram I'm looking at doesn't have an orange wire in the SCU connectors... But there is an Orange/Red...
Hmmm... After taking another look, I'm thinking that the "signals" live feeds all round the bike are the Orange/Red wires FROM Fuse 5...
That would mean that Fuse 5 feeds +12V to:
- the horn
- the flasher relay
- the LHS switch
- the SCU
Which makes a LOT more sense, but also suggests more errors in the actual wiring diagrams - where 'O' and 'BW' are given as wire colours and 'OR' and 'B' are more likely to be correct...
I'll amend my diagram accordingly...
(Done...)Jeff
Thank-you for a great response. The issue is that they don't work untill the bike warms up - once they start working they keep working. The voltage sensitive bit makes sense as it may be it wants 13 + volts before it will uncancell! The wiring diagram is very helpful as it looks like I can just wire it out - the self cancel has never worked since I bought it in 1998 so I won't miss it. Interestingly the unit that is described as a speedo sensor which I guess is the gadget in line with the cable....is fitted to my rev counter ! I saw it the other day and wondered what it did.
Like wise it was great to see you all at the AGM - Kevin
Hi Kevin;
It would be possible to rewire the indicators to remove the self cancelling unit (I'm not surprised it's not working if the distance-counting switch is on the tacho cable)
BUT... Don't forget that the V1000 indicator switch is a "momentary action, self-centring" unit, so without the self-cancelling unit, the flashers will only work for as long as you physically hold the switch "ON". That would be a real PITA..!!
You could fit a LHS H/Bar switch off an early Suzuki..? This one is from a GT750...
(http://i.ebayimg.com/t/suzuki-gt750-left-hand-switch-/00/s/OTAwWDE2MDA=/z/hDUAAOxylpNTQZMf/$_58.JPG) (http://www.ebay.co.uk/itm/suzuki-gt750-left-hand-switch-/271446890969?pt=UK_Motorcycle_Parts_13&hash=item3f337ed9d9)
I've seen reproduction switches for less than £25 (plus P&P) and I suspect that would be a LOT cheaper than a new self-cancelling unit...
Hope that helps
Jeff
Hi Folks;
David Sharp has asked me to post up the following:
"Dave H has a good memory; I did make a few Indicator Unit replacements for Mick which he provided to customers. Whilst there was the usual manual cancel function here was no self-cancel.
It looked like this:-
(http://iloapp.heskethownersclub.org.uk/data/_gallery/public/0/139790829100804900_resized.jpg)
It was a very simple design based around two 5A 12vdc 4PDT relays (on a custom pcb) and one 10Ω 15w resistor all contained within a box the same form factor as the original. It used cables and connectors from scrapped originals.
The box and lid were supplied by Mick. It was an aluminium pressing welded up at the sides with a removable machined lid.
I stocked up to build another 10 but the box supply dried up.
If anyone wants to pick up where I've left off I have a working prototype unit, the complete design package (including pcb) and 10 sets of components available.
David Sharp"
Hi Folks - we now have a solution to the self-cancelling indicator issues that have plagued some folk...
You can read all about the repair/upgrade here (http://www.heskethownersclub.org.uk/HOCSMF/index.php?topic=212.msg944#msg944):
BR
Jeff