Valve adjustment interval?

I have an 02 WR426 with 900 miles on it, and I have never checked/adjusted the valves. I know the book calls for a check every 300 mi, but how often is everybody making adjustments on their valves?

I check mine often, every 300-600 miles.

If it becomes hard to start they really need it.

My bike has 4200+ miles on it and I check the valves once every winter. I have not had to change a thing yet. They are all within spec. If it starts having fits starting then I will check them and adjust as necessary. :thumbsup:

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