12 replies to this topic

[Twinshock]

HI
CAN ANYONE HELP ME WITH THE MODEL NUMBER AND JET SIZES THAT I WOULD NEED TO FIT AN AMAL MK 1 CONCENTRIC TO MY 64 SQUARE BARREL CUB AND ALSO WHERE I COULD BUY ONE FROM TO GET SHIPPED OUT TO AUSTRALIA.
WE RIDE IN TEMPERATURES OF ANYTHING FROM 20 C TO 35 C DURING OUR SEASON WHICH IS JUST STARTING IN FEB BUT I NEED A STARTING POINT ON JET SIZES.
ANYONE HELP PLEASE
CHEERS
TWINSHOCK

[totalshell]

Simples.. get on to surrey cycles and they'll do it all for you. if you do a search on here you ll find a thread including the specs that martin adams of Serco fame used

[ausy300pro]

HI I would suggest that amal carbs themselves are a better place to start, amalcarb.co.uk they are much cheaper than surrey cycles and you can deal direct with them.

[Twinshock]

Thanks fella's
I've tried contacting Surrey cycles, Amal UK and even Martyn Adams but no responses off anyone yet,,,,, perhaps the questions too hard !!!
Any other suggestions ??
Cheers

Twinshock

[charlie prescott]

Hi Guy's

This is the mail address you need, http://www.burlen.co.uk/ Always found them to be more than helpfull.

Regards Charlie.

[Vinnied]

Twinshock, on Mar 1 2010, 04:42 AM, said:

Martyn Adams


Twinshock

As far as i no Martin has moved to Australia

[Twinshock]

Thanks Vinnied
Yes Martyn is over here living in Adelaide and he called me yesterday, Told me that the Concentric is not the best carby for the Cub but i'm trying to get it back to within the regulations over here and I need a Mk 1 fitted. Anyway Martyn gave me some details and all I have to do now is buy a carb at a decent price.
Cheers
Twinshock

Edited by Slapshot 3, 02 March 2010 - 10:07 PM.

[Vinnied]

Well you are in good hands

[Jack_the_lad]

Could be worse you could be in the hands of Ian Roberts.
Jack

[smm125]

have seen them at £93 at our local trials and mx shoppe. thats a 622 jetted any way you like . or you could try vale onslow in birmingham 01217722062.

[Twinshock]

Thanks Fella's especially Charlie
I have sourced a carb through Burlens and it should be on its way down under in a few days.
If any of you guys want to know whats going on in the trials scene in Australia either have a look at www.trials.com.au or drop me an email at twinshock@aapt.net.au
Thanks again
Twinshock
aka
Roger Galpin (ex Midland centre, migrated in 1980}

[Twinshock]

Well my Concentric arrived and was duly fitted to my trusty square barrelled 64 side points Cub and thats when the problems started !!!!!!
To be exact I cannot get it to respond to lifting the front wheel to get up a steep creek bank or up a good rock step and the only way it happens is to have the engine running pretty fast as I approach.
As we all know we are usually turning up our own exhaust pipe before we hit the big step and need an instant response from the throttle to get the front up but it won't happen.
I am running a 624 to match my 15/16th head and its fitted with a 100 main jet, 106 needle jet, 25 bushed pilot and a 3.5 slide. Air cleaners good and the timing's right (Boyer Bransden), I have a spare 110 main and a spare 105 needle jet.
Everywhere else it performs pretty good but this lack of initial response means the Keihin will go back on if I can't fix it.

I know some guys will say "I told you so" but it must be able to perform better than it is now.
Come on you, Cub guys over there, whats the go, I know heaps of you have sorted this problem out but as you might not want to put your solutions out in a public domain would you prefer to contact me on my private email, twinshock@aapt.net.au.
Thanks fella's
Roger Galpin (AKA Twinshock)

[mik60ish]

Hi

You could ask the same question here http://www.cubsite.com/cubforum/ you would have to register to post questions but its painless lots of Cub knowledge here though. Good luck!

Mike