classic motorcycle forum

It had been restored from a very original machine.

Do we spot a tinge of regret uttered there ?

And is that red likely to have been anything like original.
Or owner preference - as is so often the case these days ...

No aussie made content !

Cute little Sun autocycle on FB
Dunno where the Sunbeam reference comes into it ... (no option to select Sun ?)

https://www.facebook.com/marketplace/item/959836385298085/

Entries elsewhere would suggest this is the full Deluxe model.
You got the extra front suspension AND a fluted engine cover.

It would still be worth trying a wipeover of phosphoric acid* on that tank.
*Industrial strength (50%), not coca cola strength.

Its amazing what comes back to life with all traces of rusty brown removed.
Someone with a rusty old Napier reported the pinstripes on the now green bonnet were visible again...

Oh it's gorgeous! If it were mine I wouldn't paint it at all...

Aye - I'll second that
They are only original ONCE !

A gentle wipeover with phosphoric acid will remove the rusty bits and brighten up the original paint.
and then (once washed off and dry) a wipeover with Linseed Oil will preserve and protect and waterproof the paint.
Phos acid is a major ingredient in Coca Cola, so is not exactly dangerous.
And Linseed Oil was a major ingredient in early enamel paints.
It may take a day or 3 to dry off, and may pong  a bit for a while. (do outside)
But can be polished (gently) once dry.
Should give a superb original paint bike....
A rare find indeed.

Have you tried tickling it while its running.

The amal, the amal.
(Not while riding it either.)(could be a risk to life and linb)

If its fuel related, this should tell if its starving for fuel.
There is some chat about viton tipped fuel needles, or not, in monoblocs.

There is a contact listed there for Mark Bryan Motorcycle Manager
I thought about doing this, but could be construed as underhanded.

I've contacted a few such auctions over similar matters over the years.
They invariably amend/correct the glaring errors, at least.

P.S. I consulted a copy of "Excelsior the lost pioneer" by TS Liversidge on this.
You obviously needed to be on the editors board for this publication ...

which is only 1" bore ..........question is ,do I bore out a 276 to 1 & 1/16 (correct size) or find a 289

Won't make much difference around town.
Unless you are planning some motorway trips ?
Getting it running nicely with what you have got is probably #1 priority.
By then a 289 will have fallen into your lap !


Those Indian mikcarbs are quite small bore anyway. ?
Maximum fuel economy was the name of the game there, for many a year.
Be interesting to know what they actually achieved.
"The Motorcycle" (magazine) used to quote fuel consumptions at various speeds.
Many a bike could do 100+ mpg, if you kept the speeds down.
I often wondered who chugged around on a Vincent at sub 30 mph speeds ?
Or a BSA Bantam for that matter, for the 10 hours a tankful would last ... !

The 289 is listed some places as being available new.
At a fair old price, it must be said...
Premiers are a bit less than that - no comment on visuals.