OK, so I'm a little confused on this.
If I did the ratio calculator correctly, the 13 tooth engine sprocket and 31 tooth axle sprocket (stock on the Yerf) gave me a 2.26:1 ratio.
And the reverse gearbox has 16 teeth. So if I used a 38 tooth axle sprocket, should give me a 2.26:1 ratio as well. But I used a 39 Tooth as recommended on the BD sight. That extra tooth shouldn't have made ALOT of difference.
So why I'm confused is.....
The kart was screaming in RPM, but didn't really have the speed to back it up. I assumed it was the gearing change, but the calculator shows it shouldn't have made much of a difference.
I checked the sliders and they are all sitting correctly inside the variator. And the clutch sheave opens up just fine when I pull on it.
So what would cause me to scream in RPM (enough to float the valves) and not have top speed to back it up? If I had to guess, I was turning 8-9k RPM and maybe getting 30 MPH max. Prior to this I was getting 38 MPH top speed and not revving nearly as high.
Any thoughts?
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