Amal News?

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duh nope... I'm still a finish nail float leveler : (

What would be news I can use is which version of slides to upgrade to - plated or otherwise. I had major vender refuse to sell me the then current chrome ones a decade ago d/t it flaking off about as soon as the pot metal version wore flats - or on my last exam of 8000 mile slide, freaking fluted as a wood rasp - ugh.

Sorely temped to cast my own in JBW.
 
"E0 to E10 blended fuels have been in use in the USA since the late 1970's and have had no significant effect on the performance or durability of our product. Using blends above E10 are not recommended as effects of these have yet to be fully investigated."

If the above is accurate then maybe melting floats are not seen as a big problem? However makes you wonder why they are now making floats claimed to be able to resist Efuels?
 
Carbonfibre said:
"
If the above is accurate then maybe melting floats are not seen as a big problem? However makes you wonder why they are now making floats claimed to be able to resist Efuels?
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Makes me wonder how Mikuni have been making the VM for about 30 years and its never had that problem!

Mick
 
ML said:
Carbonfibre said:
"
If the above is accurate then maybe melting floats are not seen as a big problem? However makes you wonder why they are now making floats claimed to be able to resist Efuels?
Click to expand...

Makes me wonder how Mikuni have been making the VM for about 30 years and its never had that problem!

Mick
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Probably because ethanol hasn't been in the fuel for the last 30 years?
 
And there have been problems with foam floats and ethanol fuels. Some carburetor specialists recommend replacing foam floats with brass.
Most carmakers issued bulletins on dealing with ethanol fuels back before the end of carburetors on cars. They had lots of problems. Google "ethanol fuels carburetor floats" Jim
 
Mikuni and Keihin motorcycle carbs dont seem to have had any problems at all with alcohol fuels, but then again you dont need to sleeve the bodies of these carbs due to them being made out of cheap pot metal, which is totally unsuitable to make carbs with!

In the endless debate on here about carbs, one wonders if those who favour Amal would also be happy with tyres made out of foam rubber, which wears out very quickly, and doesnt work very well in any case?
 
Carbonfibre said:
In the endless debate on here about carbs, one wonders if those who favour Amal would also be happy with tyres made out of foam rubber, which wears out very quickly, and doesnt work very well in any case?
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If the modern alternative was pink tyres with flashing LEDs on the sidewall reading "Made in Japan / China" which is pretty well the aesthetic equivalent of fitting Mikunis or Keihins, then I think that I'd live with the old black version.
 
Interestingly enough most of the basic design of the Amal concentric carb seems to suggest that more than a few ideas for this were gleaned from the Mikuni VM, which pre-dates it by several years.
 
Carbonfibre said:
Interestingly enough most of the basic design of the Amal concentric carb seems to suggest that more than a few ideas for this were gleaned from the Mikuni VM, which pre-dates it by several years.
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Except that Amal had been making versions of Concentric carburetters back to the 1930s among all the other types of carbs they made and all the elements of the Mark 1 Concentric can be found in one form or another among those carburetters.

There is a relationship between Amal and Mikuni however. Mikuni started out making Amal carburetters under licence in the 1930s and the relationship continued after the war. In 1946 Mikuni even paid up five years of accumulated royalites that had been put aside during the war!
 
Appreciate the history review. About every single major engine and related part design used for decades world wide can be traced to some Englishman's cleverness.
I love to rub the Boxer Boys nose a little in this. There are online histories to back up Amal first then farmed out or sold out, like so so many other British things.
 
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