Possibly a fault within the switch itself?
I might have a spare I could post to you to try.
Obviously you've checked for blown fuses?

Let me know if you want to try a different switch & i'll have a look to see if I've still got it.
Cheers

Many Happy Returns - looks superb!

Sorry to hear that Dave - a nice bargain for someone!

Found a couple of the original adverts

I must admit,I had not heard of Ray Wilson

I had a bike originally from Leicester (KH250) on an R plate that came from Russells Main Kawasaki Dealer - even had their logo and telephone number on the number plate.

Looking through some old photos found this one taken in Nottingham around I think end of 1978. Some brave soul on Z1A decided to brave the winter weather - you can see snow on the pavement. Thought this might be of interest especially if anyone still running around on this bike. IMG_20250723_0001B.j...

On my A2 I had a coil failure in 2015 (case cracked & looked like it was leaking its innards) so changed to Dyna coils & had been ok. In 2024 I changed back to Z Power coils so back to completely standard set up and I can tell no difference. I remember having to be super careful fitting the ...

Hi Kev - google 'getapic' and you'll find it.

Oddly I didn't intend to take that road - I got diverted due to Buxton Carnival which effectively sealed off the Market Place - was aiming for the Goyt Valley - Whalley Bridge Road. You are right Kev- it is a great road which I haven't done for a year or two - those bends that tighten up unexpectedl...

I was caught on Camera going past the Cat & Fiddle yesterday when I saw a bloke on bended knee with a long lens camera snapping pics. After I got home I stumbled across a website that apparantly takes pictures there regularly - & there I am in glorious technicolour! So beware - you can be sn...

Serious Motorway mile muncher with the copious fairing - plus it's an air cooled big Z so it can't be all bad!

Really sorry to hear your very sad news Dave -

That bike has always been absolutely immaculate - Someone could get a bargain

I think this is Keith's diagram - "a picture paints a thousand words"
And gives another name for the screw as 'pilot screw'

Carbs on my 1978 A2 have a screw mounted centrally and underneath the carb. This is a fuel screw, but confusingly referred to in the Kawasaki manual as a mixture screw. On my bike they have to be 1 1/4 turns out or it will not pull cleanly, My 1978 Z1r was different as it had an air screw in the sid...

Great pictures - I would love to borrow the Laverda for a week or two! - A mate of mine had a Laverda a few years ago but found the Mirage's reversed brake - gear change controls tricky to get used to. Some very cool bikes there.