POD / Exhaust Calculator: Accurate?

PancakeShake

Been Around the Block
Thought this was neat, can anyone vouch for the accuracy of it?

http://motorcycles.wikia.com/wiki/Rejetting
 
My $0.02?

The premise seems good, but for instance, which pods? Some of the emgo pods are more restrictive then the stock air filter. The "calculator' really doesn't take into account specifics to a brand, style or type.

Same with exhaust...not all 4 into 2 or 4 into 2 have the same effect on a motor.

So without real specifics, the guidance is pretty much meaningless.

The best way to re-jet is to check the plugs, and adjust small steps. Depending on the carburetor, it may not be so cut and dry. Keihin CV carbs have air jets as well as fuel jets. To dial them in, you need to look at all of them.
 
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