Type each bucket number and the lash you measured. We'll pick the bucket that puts every valve back in spec.
Spec, engine cold: intake 0.076-0.203 mm (.003-.008 in), exhaust 0.203-0.356 mm (.008-.014 in).
Spec, engine cold: intake 0.15 ± 0.05 mm (.006 ± .002 in), exhaust 0.25 ± 0.05 mm (.010 ± .002 in). Don't turn the engine backwards.
Get a quote on these bucketsEngine cold. Turn the crank until the cam lobe over the valve points straight away from the bucket. Slide feeler gauges between the lobe and the bucket; the lash is the thickest one that slides with a light drag.
A 3-digit number on the bottom (inside) of each bucket: 450 means 4.50 mm thick. If it's worn off, mic the bucket and type the thickness, like 4.62.
Middle puts the gap closest to the middle of the spec. More gap or Less gap pick the loosest or tightest bucket that's still in spec. Keep a removed bucket if another valve needs that size.
Spec and bucket sizes from the Polaris service manual. Buckets come in 4.40 to 5.45 mm (Polaris 5138477-440 to -545).
