It's only really apparent at about 2800rpm, VERY slight tap below this and lost in the noise of the engine/exhaust above 2800.
Done a bit of a search and will check things like plugs etc later, couldn't last night due to the darkness and a lack of tools at home.
Any other ideas while im on chaps? (& chap-esses?)
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i feel like giving her a good dry bumming session.