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Author Topic: Redditch Fury 500 carb settings  (Read 306 times)

Bullet Whisperer

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Redditch Fury 500 carb settings
« on: June 20, 2014, 12:46:00 PM »
Redditch Fury 500 carb settings ...
 I thought this might be of interest for some - I have just finished setting up an Amal MK II 38mm carb on a genuine 'Big Head' Fury. It starts and runs perfectly and here are the settings:
 Slide = No3 cutaway
 Main jet = 380
 Needle jet = 107
 Needle = lowest groove [richest]
 Pilot jet = 45
 Starting jet = 60
 Air screw = 1.5 turns out.
 Full advance timing is 34 degrees BTDC [11mm]

High On Octane

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Re: Redditch Fury 500 carb settings
« Reply #1 on: June 21, 2014, 05:45:19 AM »
And here I am running a single 30mm MK I on my TWIN.     :-[
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da punds

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Re: Redditch Fury 500 carb settings
« Reply #2 on: June 21, 2014, 11:02:37 AM »
32mm Amal mk1 on the 570
34mm TM Mikuni on Bighead Fireball
15/16" Amal Pre Monoblock on Model CO

da punds

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Re: Redditch Fury 500 carb settings
« Reply #3 on: June 21, 2014, 11:07:53 AM »
Sorry hit post before I had finished.
Thanks for the info, I have played with the MKII's in the past, mainly on Triumphs, and never really got great results with it, I see now I should have been more patient.
Kevin

ace.cafe

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Re: Redditch Fury 500 carb settings
« Reply #4 on: June 21, 2014, 11:17:27 AM »
And here I am running a single 30mm MK I on my TWIN.     :-[

Remember, your twin has 2 350cc cylinders which feed off that carb at different times during the engine rotations.  That 30mm carb is enough for that. The shared manifold ain't great for max performance, but it can service a modest street application.
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Mr.Mazza

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Re: Redditch Fury 500 carb settings
« Reply #5 on: June 21, 2014, 11:54:22 AM »
And here I am running a single 30mm MK I on my TWIN.     :-[

As ace said, a bigger single carb is better than two smalls!
Plus more carbs = more things to tune ;)
Lizzy - 07 500 Deluxe ES - Red and chrome

ace.cafe

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Re: Redditch Fury 500 carb settings
« Reply #6 on: June 21, 2014, 03:08:59 PM »
As ace said, a bigger single carb is better than two smalls!
Plus more carbs = more things to tune ;)
It all depends on the size and application.
A carb that's too big can be as bad as one that's too small. Just in different ways.
When in doubt, size the carb the same as the inlet port entry.
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

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High On Octane

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Re: Redditch Fury 500 carb settings
« Reply #7 on: June 21, 2014, 03:27:04 PM »
It all depends on the size and application.
A carb that's too big can be as bad as one that's too small. Just in different ways.
When in doubt, size the carb the same as the inlet port entry.

Awe shucks, I was going to put a Demon 870 4 barrel on my bike.   ;D  Seriously tho, had I known more about my bike and Amal carbs before I bought the new 930, I would have definitely went with at least a 32mm.  I had a 30mm Monobloc on the bike so I replaced it with a 30mm concentric.  But I wish I had gone with a 34mm.  It is however in a great state of tune so I shouldn't complain too much I guess.  :)

Scottie J
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jimbocan

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« Reply #8 on: July 24, 2014, 05:41:21 PM »
I used 1.5 inch Amal GP on my Redditch Fury Racer 1970. See my post ask!!

jimbocan

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Re: Redditch Fury 500 carb settings
« Reply #9 on: July 24, 2014, 10:33:01 PM »
THE FURY 1970 It might be better to go to my facebook and see and read about my Endfields.