classic motorcycle forum

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.

(post from the US is a killer ,though),

I'd comment that that situation is almost entirely a figment of sellers imaginations ?
(and is similar to UK postage)

Sure, during covid most passenger planes were idle, so postage capacity was almost nil.
But since things have returned to 'normal', many sellers are still choosing THE most expensive postage option.
Delivery in 2 or 3 days sure costs, even more so with UPS and other private carriers. Who add customs charges.

USPS still offers std or economy international post - delivery times are reasonable.
And costs a mere fraction of the expensive options. No customs fees.
Convincing sellers of this can be a challenge. !

Was chuckling about a dual seat someone in US was offering - private carrier to Oz for a mere A$997
Hmmmm !

Before reducing it to its component atoms, best if you do some research and see what is what. ?
https://content.api.news/v3/images/bin/6552ef5727e82a20be1f7f1e95d835ee

And if you keep it 'assembled' and do the seat first*, you can sit on it and dream away. !.
(*never sit on anything with the engine removed - this can have dire consequences for older frames)

Restored it exactly like this ...
https://australiapostcollectables.com.au/content/dam/corp/ourpost/news/latest-news/2018/sep-2018/invincible-jap.jpg

$11,902

Not bad for a pile of, , , nostalgia. !

Don't know if it adds anything, but that article mentions that Harry Beanham took an interest in Lilacs.
There is a webpage about him and them.

https://www.marusholilac.com/beanham

Note the comment about Mahler's importing "hundreds of them"   
??