Adjustable jet Mikuni bs34?

Aircooldog

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Hi does anyone have any info about replacing the standard needle on a BS34 for a 1980 4G5? I was hoping to be able to drop it by a notch but know this can’t be done on the standard needle. TIA
 
Hi does anyone have any info about replacing the standard needle on a BS34 for a 1980 4G5? I was hoping to be able to drop it by a notch but know this can’t be done on the standard needle. TIA
 

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Hi does anyone have any info about replacing the standard needle on a BS34 for a 1980 4G5? I was hoping to be able to drop it by a notch but know this can’t be done on the standard needle
I am not absolutely certain what the stock needle on a 4G5 bike looks like, but if it is not adjustable like the US spec bikes of that year, you might be able to raise the needle by shimming it up by adding a very thin washer where the needle inserts into the slide. Worth a look and certainly easier than sourcing a different needle.
 
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