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Jet numbers...What do they mean

  • Thread starter Thread starter Mike_H
  • Start date Start date
M

Mike_H

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I've got two sets of carbs for my GS650GLZ, and the pilot air jets settings were all different. On one set, I had one carb with a 150 air jet in it, and the rest were 155's. One the other set, (bought for spare parts) all the jets were 150's. The manual calls out 160... My question is what doe the number mean. Is it the Metric size of the hole (i.e 160 is a 1.6mm hole, 150 would be a 1.5mm hole) in which case a larger hole would cause leaner mixture on pilot circuit, right? Or am I completely off here...The bike has always felt a little "off" on the pilot circuit, and I think this is why. Thanks
 
In mikuni land the gas jets relate to the measurement of gas flow. I'm not sure about the air pilot jets. I would ASSume they are a measurement of air flow.

In dynojet land the numbers refer to size.
 
Sorry, can't help.
However, I remember seeing a Jet size chart on here when someone was going with Pods.

I did a quick search on the internet and didn't come up with anything of use.
 
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