Primary Clutch Springs Explained (With Charts!)
Your ATV or UTV’s Polaris primary clutch spring is a core part of your ride’s continuously variable transmission (CVT). While you might be more used to seeing springs in mattresses or trampolines, it turns out this simple mechanism is a key part of your transmission. But what is a primary clutch spring, and what’s a clutch spring chart? Harvey’s ATV parts has the answers.
What is a primary clutch spring?
The primary clutch spring is held between the mobile sheave and the clutch cap. It’s an essential part of the CVT assembly, and comes in a variety of color-coded compression and expansion rates. This seemingly simple part of the Polaris primary clutch is crucial to proper transmission operation and tuning.
What does a Primary Clutch Spring do?
Example: Polaris Primary Clutch Spring Chart
What do the numbers represent?
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