Mikuni slide numbers

[Mick Milakovic]

What do the different numbers on a Mikuni slide mean? I have 1.5, 2.0, and 3.0. Craig Hayes even took a 2.0 and filed on it to make what he said was a 2.5. What's the difference?

Mick

[skiracer]

The numbers refer to the size of the cut on the back side of the slide.  The cut changes when, and how much air is entering the carb.  You can research it on Mikuni's site....

1976 250 MC5 Original Owner
1976 Penton 175 XC

[blaze7c]

The higher the number on the slide the leaner the mixture is just off idle. So if you have a right off idle stumble changing the slide may help. Of course check/adjust the air screw first.