Author Topic: Amal 928 Premier Concentric.  (Read 342 times)

Offline A10 JWO

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Amal 928 Premier Concentric.
« on: 13.09. 2018 16:16 »
I have been looking at the new Premier version of the 928  as I am running a standard 928 with the blanked off pilot circuit. I just cleaned out the pilot circuit today again. I have both of the tiny holes spraying carb cleaner through them quite well at the moment. Am I right in thinking that the new precision engineered idle circuit allow me to clean the carb without a strip down. They are not cheap, about £130, but anything for an easy life at my age. Anyone tried one ? Thanks.

Offline ellis

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Re: Amal 928 Premier Concentric.
« Reply #1 on: 13.09. 2018 17:50 »
Hi A10 JWO.

I have twin Premiers on my Commando and work great. The pilot jet is removable for cleaning and you can also change it for smaller or larger jets to tune the carb. The tickler has a built in shroud so no more wet gloves. Well worth the money and I suggest you buy them from Burlen.

ELLIS

Offline A10 JWO

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Re: Amal 928 Premier Concentric.
« Reply #2 on: 13.09. 2018 22:21 »
Thanks Ellis, I am sold. Have you anymore details for the company you got it from. Many thanks.

Online muskrat

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Re: Amal 928 Premier Concentric.
« Reply #3 on: 14.09. 2018 13:52 »
G'day JWO.
Alloy or iron head? I ask because on an alloy head with the downdraft angle of the manifold it's hard to get a good fuel height. Best I could get is 0.240" but they run better at 0.190" even with the new "stay up" adjustable float. Buy direct from Burlen.
Cheers
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Australia
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Offline ellis

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Re: Amal 928 Premier Concentric.
« Reply #4 on: 14.09. 2018 14:39 »
Hi A10 JWO.

Spitfire House Castle Road Salisbury SP1 3SB
01722 412500

ELLIS.

Online Rex

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Re: Amal 928 Premier Concentric.
« Reply #5 on: 14.09. 2018 14:59 »
I shopped around and found Hitchcocks had the best price for a Premier.

Offline A10 JWO

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Re: Amal 928 Premier Concentric.
« Reply #6 on: 14.09. 2018 15:05 »
Thanks lads. Hitchcocks have always been good, got to know a few of them when I built my Crusader Sports,

Offline stev60

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Re: Amal 928 Premier Concentric.
« Reply #7 on: 15.10. 2018 19:41 »
I bought from from Burlen, 1951 star twin. Suits the bike perfectly.

Online Rex

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Re: Amal 928 Premier Concentric.
« Reply #8 on: 21.10. 2018 13:08 »
Hi Steve, any chance you have a note of the carb specs?

Offline A10 JWO

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Re: Amal 928 Premier Concentric.
« Reply #9 on: 12.11. 2018 17:39 »
I spoke with one of the Hitchcock family today. I explained that my primary gets blocked after standing causing the bike to not idle and cut out. His view is that the Premier is a better carb, but won't stop the modern fuel congealing in the primary circuit. Basically he didn't want to sell me a new carb as he said that I will have the same issues. Even draining the carb will not stop these issues as the residue will sit in the circuit ? I now have an open mind and wondered if there was something I can add to the fuel to prevent this. ?

Offline RDfella

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Re: Amal 928 Premier Concentric.
« Reply #10 on: 12.11. 2018 18:43 »
When coming back from a ride I turn the tank off about 1/4 mile before I get home and let the engine run until it's out of fuel. Nothing left then to cause misery. Something I learnt to do 40 odd years ago when I could never start our chainsaws after a  few months layup. It was the petrol evaporating and leaving the oil behind - which in turn solidified. Stopped using 2str oil and used straight 30 instead - and always ran them dry before putting away.
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Online BSA_54A10

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Re: Amal 928 Premier Concentric.
« Reply #11 on: 04.12. 2018 10:19 »
When coming back from a ride I turn the tank off about 1/4 mile before I get home and let the engine run until it's out of fuel. Nothing left then to cause misery. Something I learnt to do 40 odd years ago when I could never start our chainsaws after a  few months layup. It was the petrol evaporating and leaving the oil behind - which in turn solidified. Stopped using 2str oil and used straight 30 instead - and always ran them dry before putting away.

Yep,
Run the carb dry ( starve the engine ) and no more gumed up jets.
Bike Beesa
Trevor