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Do I Need To Drill Wiseco M Series Piston For Lube?

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Like the title says I just got a new piston in and in reading through the instructions it says that lube holes need to be drilled vertically on the piston in line with the exhaust bridge.

 

I have a 2001 Honda CR250. Can anyone confirm if I need to do this?

 

Thanks!

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I don't have an exhaust bridge on my 2000 so I don't drill. I want to say it's the same cylinder but you'd have to take a sneak at it

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If the instructions tell you to drill, why wouldn't you? 

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If the instructions tell you to drill, why wouldn't you? 

 

Wiseco builds 1 piston to fit multiple bikes.  The instructions tell you to drill if you have an exhaust bridge.  if the 01 250 doesn't have one, you don't drill.  If he took a picture of his exhaust port (if he doesn't know whether or not he has a bridge) we could tell him. 

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Yup with a bridge you should drill. I asked Eric Gorr about this when he had my cylinder. I asked if I should still drill the holes even though they have relieved the exhaust bridge. He said yes I should and even did it for me.

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