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MIESWed Aug-20-08 06:33 AM
Member since Mar 18th 2009
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"NORTON 16H - 1944 - SNEESING / please help :-("
Fri Aug-22-08 07:26 AM by MIES

  

          

Hi, i have a 16H thats sneesing from the carb in the 1e + 2e gear.
I'm almost 100% sure that it's not the valves, contacts, a old bike repair man told me that it's the carb.
The air-fuel mixing skrew is not reacting to inn and out, cleaned the carb. totaly.....some say the carb is leeking air???
Must i buy a whole new carb??? What to do or how to test the carb???

The carb is a AMAL 276 - AE 1BE with 170 main jet ... i think.



MIES

Attachment #1, (jpg file)

  

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47Mdl18Sun Aug-24-08 07:47 AM
Member since Mar 18th 2009
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#1. "RE: NORTON 16H - 1944 - SNEESING / please help :-("
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MIES
Nice looking machine. Does the rear fender have a rib down the middle.
I believe the Norton advertisements called this a mud channel?
I have a 1947 Model 18, I am rebuilding. It's so hard to find accurate information on this era bike as to original configuration.

From your description, your machine is running lean. If you have taken the carb are the way apart and meticulously cleaned all the passages and the idle air screw is not making a change to the idle speed, then most likely the slide and body are so worn they leak so much the mixture is leaned out and the condition you describe occurs. The slide is literally rattling in the body and leaking air around it.

On Commando's the carb body and slide can be sleeved. I don't know of anyone who has had an older 276 done, but it would seem possible.
You can buy a new 276, I see BritishCycle has an add for some in stock.

Here is a British carb article aimed more at commandos but the principles apply. http://www.jba.bc.ca/Bushmans%20Carb%20Tuning.html

I see used one on ebay all the time, especially on the UK ebay motors. But buying a used carb is pretty useless except for parts.
IF you really want to keep the old girl ticking over like she deserves put a new carb on her.

Hope this helps!



  

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MIESMon Sep-01-08 03:11 AM
Member since Mar 18th 2009
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#2. "RE: NORTON 16H - 1944 - SNEESING / please help :-("
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Hi thanks a lot for your replay, i'm gonne try a carb. from my friend he is also driving a 16H just to check / make sure that it's the carb. And ofcause i'm buying a new carb. for my English Pearl!
Good luck with your rebuilding project
MIES - Norway / Oslo

  

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vintagebikesSun Nov-09-08 01:25 PM
Member since Mar 18th 2009
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#3. "sRE: NORTON 16H - 1944 - SNEESING / please help :-..."
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sir i am located in india new delhi dealing into old british bikes and there spare parts. if u want good perfomance and good start and better fuel consumption then u put mikuni carb which comes on royal enfield 350cc. if u can get 1 there then its ok or else i can ship u one.

http://britiron.com/dc//user_files/49.txt

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