Hi all, just attempted a valve check/adjustment of our 2022 Lexmoto Echo.... Engine stone cold. It seemed the clearances were tight. We think we got TDC as T mark against the flywheel case marker and valves at their correct positions.(we think). Have adjusted to book recommended 0.05mm/0.1mm (in/ex). We think we adjusted correctly. Now sounds very tapety...and almost no power....so something has gone wrong somewhere. But where!? For what it's worth, when we tried again the following day (cold engine) I notice that there is always tension on the rocker arm and therefore tapet to valve are always on contact. So....if it's always pressing against eachother, where's the gap we're supposed to be measuring? Link to this is here.https://photos.app.goo.gl/3nuMVzrjr2B874ez9 Very confused...