I can produce colour wiring diagrams at A3 size and laminate them. There are free ones on the interweb by Carl Allison but I find that the colours are a little hard to see as the lines are a bit fine, especially when the wire is two coloured. The ones I produce I have been drawn by me and have much thicker wires and so make them easier to read.
Being in colour they make sorting out which wire goes where very easy unlike the maze that is shown in the back of most workshop manuals! I have found some discrepancies in Carl Allison’s diagrams with those shown in workshop manuals, where possible I have used Moto Guzzi workshop manuals for my reference, however there may be variations from bike to bike within a model range and also there may be alterations carried out by you or previous owners. I can therefore take no responsibility as to the accuracy of the diagrams with respect to your own bike.
I can supply laminated A3 colour diagrams £10.00 each (£7.50 each for addition prints dispatched with the same order) to cover printing and laminating costs plus £5.00 postage and packing to the UK (£10.00 p&p to Ireland and Europe, £17.50 p&p worldwide) per order up to 5 diagrams. If you send me money via PayPal please check the “I’m sending money to family or friends” radio button and NOT the “I’m paying for goods or services” radio button as otherwise it will cost me 5% to receive the payment. Digital copies as PDF files are £1.00 per issue for unlimited diagrams, handy to have on your smart phone or tablet. PM me if you would like any further information.
Models now available
1967/76 V7 European
1967/69 V7 USA
1968/68 V7 Special (1st series)
1969/74 V7 Special (2nd series)
1969/72 V750 Ambassador
1969/72 V750 Ambassador Police
1969/76 Nuovo Falcone
1971/75 V7 SPORT
1972/74 V850 Eldorado
1973/74 750 S
1973/75 850 T
1975/76 750 S3
1975/87 850 T3
1975/87 850 T3 California
1975/78 850 Le Mans
1975/84 V1000 Convert
1977/79 V35
1977/80 V50
1978/83 1000 G5
1978/83 1000 SP/NT (without PCB)
Later 1000 SP I (with PCB)
1978/81 850 Le Mans II (without PCB)
Later 850 Le Mans II (with PCB)
1979/80 V50 II
1979/81 V35 Imola
1979/81 V50 Monza
1980/85 Le Mans III
1980/85 V35 II
1980/86 V50 III
1981/87 California II
1982/94 V35C
1982/94 V50C
1982/94 V65C
1984/88 Le Mans IV (LM 1000)
1984/89 V35 Imola II
1984/89 V50 Monza II
1985/90 V35 III
1985/90 V75
1987/92 California III (carb)
1988/92 1000 SP III
1989/93 1000S
1993/99 1000 California EV
1997/00 1100 California EV
1998/01 California Special
1999/01 California Jackal
2001/02 California Special Sport
2001/04 1100 California EV
2001/03 California Stone
2001/03 California Stone Chrome
2002/03 California Special Aluminium
2002/03 California EV80
2002/06 California EV Touring
2005/11 1100 Breva (currently redrawing)
Here is a sample, my 950S wiring diagram. It is drawn on a CAD system and the quality is pin sharp, but I have reduced the quality to reduce the files size for on here so it is a bit pixely! Printed at best quality at A3 you can easily read all the numbers on the multi pin connectors!
Chris950s 2013-04-08 07:55:40
That’s quite a job you have done there. Looks really good.I have often thought of doing a CAD wiring diagram with the different circuits, lighting, charging, ignition, starter circuit etc on individual layers so you when you are working on a specific problem you can easily identify just the necessary wiring relevant to the problem. Problem is that it only works for those with a CAD system to use the functions.
Just received the T3 and LM1 versions.Good enough to frame and put on the wall as a piece of art.Small and tough enough to pack up and take on the bike just in case.Stunning!Steve
As has been stated above, a huge improvement over original and excellent value for money. Now I dont have to keep putting my glasses on and getting the magnyfying glass out, and cross referencing the number codes. If you’re doing a re-wire you’d be daft not to buy one.Thanks Chris.
ReggieV2013-01-03 10:56:49
I have found faults on the Carl Allison ones, he often shows Black/Blue wires as Black/White (on the originals they are N-B and N-Bi respectively) also found some other small discrepancies, but generally they are very good but beware!
I am at a bit of a quandary with the newer Guzzis, the electrics are so complicated that I have to scale everything down to get them onto an A3 sheet also there are more two coloured wires so they start getting harder to read. I was going to go back to earlier models as these are easier to draw, but will get a copy of the original Griso Italian diagram and have a think about it
i love these drawings and have a few as never know if i will need them in the future as collection grows
think Don said in the early days they would be nice on transparencies so you could overlay them ie ignition - charging etc
but they are done at a very very good price and very good quality as a help to owners and i dont think he is going to retire a millionaire on the proceeds
the initial laying out and interpretation of the originals must take a good while
I like the idea of the transparencies but i also appreciate that if done the cost goes up from ÂŁ5.00 a full drawing to maybe on the modern ones ÂŁ20 a drawing (4 sheets)
If they ever get done this way i will order a set but as said appreciate the fact that a member is spending time to help others out for not a lot of cash for hours spent
I draw the diagrams on separate layers on my computer so that each colour wire can be isolated, it would be possible therefore to print any diagram on separate sheets showing only ignition/lights/charging/accessories etc however printing on clear sheet so that they can be overlain is the problem. On the older bikes with simple wiring this is not necessary.
I have inkjet printers that are not the best on tracing paper and that not only is translucent not transparent also it distorts with heat from the lamination process. I have tried printing on acetate but the ink rubs off.
What I charge has no relation to the time I spend drawing these. Maybe I will do more this winter but at the moment after the Breva 1100 one, that took ages to draw, I am a bit digramed out Ă‚
The problem with the later ones is not the complexity to draw, but as there are so many wires it becomes harder to cram them all onto an A3 sheet in such a way that they are still legible. I will revisit the Brevas soon, however as I am still self employable and also a busy grandfather my free time is valuable and at the moment split between sailing and rebuilding my old Guzzi (neither of which are progressing as fast as I would like)
Just wanted to say what a fantastic help the laminted wiring diagram has been! I bought a bike with no electrics installed - just regulator & rectifier in a box of mostly useless parts - and bits of spurious wiring presented as a loom…
I have sourced a pretty good original loom and am steadily moving towards a running bike but without Chris’s diagram I would be well stuffed! Excellent - my wife says we should have it framed after the rebuild - I’ll let you know how that works out…
Hi Chris, wiring diagram received. It’s brilliant: a real work of art! Surprisingly the Unreconstructed Despot Woman won’t let me frame it and put it up on the wall!
Many thanks, Great club.
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