Disabling Accelerator Pump

  • DoubleDub
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16 Dec 2011 12:23 #493371 by DoubleDub
Disabling Accelerator Pump was created by DoubleDub
The rules in the racing series I am looking at state that the accelerator pump has to be disabled or blocked off.

On the Mikuni VM24 carbs I have, what would be the method of blocking off or disabling the accelerator pump?

Likely I will be getting different carbs (VM26, VM28 w/out pump, CR29's) but I want to have my bases covered.

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  • DoubleDub
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16 Dec 2011 12:31 #493373 by DoubleDub
Replied by DoubleDub on topic Disabling Accelerator Pump
Diagram:


Attachment Capture_2011-12-16.PNG not found

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  • DoubleDub
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16 Dec 2011 12:42 #493375 by DoubleDub
Replied by DoubleDub on topic Disabling Accelerator Pump
So, according to Google a block off plate has to be installed over the accelerator pump openeing once the pump components are removed.

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16 Dec 2011 13:47 #493388 by LarryC
Replied by LarryC on topic Disabling Accelerator Pump

DoubleDub wrote: The rules in the racing series I am looking at state that the accelerator pump has to be disabled or blocked off.

On the Mikuni VM24 carbs I have, what would be the method of blocking off or disabling the accelerator pump?

Likely I will be getting different carbs (VM26, VM28 w/out pump, CR29's) but I want to have my bases covered.


Odd rule...

Larry C.

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  • DoubleDub
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16 Dec 2011 13:54 #493391 by DoubleDub
Replied by DoubleDub on topic Disabling Accelerator Pump
There's a number of odd rules...I don't ask, just follow.

Here is the rule as stated in the handbook:
www.ahrma.org/ahrma_pdfs/Z-2012/12_handbook_withlinks.pdf

Vintage Superbike
b) Engine
3. All round slide carbs are allowed (Keihin CR, Dell’Orto, Mikuni “smooth bore”
and like design). Flat slide carbs are not allowed. Pumper carbs may be used,
but the pumper mechanism must be disabled. 1025cc four-cylinders may use carburetors
up to 29mm or the stock constant-velocity carburetors that were original
equipment on that machine.

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18 Dec 2011 15:15 #493643 by DFIGPZ
Replied by DFIGPZ on topic Disabling Accelerator Pump
I would just remove the actuating rod hence disabled.

1984 750 Turbo
The following user(s) said Thank You: DoubleDub, wireman

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