Valve Clearance

I'm replacing my WR426 cam with one from a YZ450 and have just checked the valve clearances before I take out the out cam the exhaust valves are on there max. clearance at 0.3mm and the intake vary from 0.55mm 0.25mm and 0.35, all are way out how can they so great I thought clearances decrease with wear not increase. Am I checking it incorrectly

Only God knows.

Can I get in touch with him

When you checked your valves was the engine cool or hot?

The engine was cold

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