Thanks for the info on the powervalve spring shims. So you guys are saying that by removing the shims, the spring tension is less, allowing the valve to open up sooner than it would with the shims in place?
Are you also talking about removing the entire clutch side engine cover, water pump, impeller, shaft and all to get to the spring?
Are there any other springs, like on the left side of the cylinder head or under the powervalve covers that can be modified instead of taking the side case off?
I want the bike to remain smooth during the transition onto the pipe. If by changing the opening time/rate makes it hit harder I do not want this. I ride the bike in rainy mode map position most of the time.
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