07-02-2013, 02:29 AM
(06-14-2013, 04:31 AM)Deanohh_imp Wrote: Go by the book, they are all different. Lots of yamahas call for 22 or maybe its 24k miles between valve check....shim and bucket type. My street triple is 12 or 14k.Yah, the Genesis engines go 26,600 miles before the first check. 8,000 miles is not bad at all. Usually the first time there are a few tight valves, but thereafter if it's done right, it will probably stay in adjustment for much longer. Still has to be checked though. It is a quiet engine that is cause for concern with respect to the valve train. Tight valves will be nice and quiet because there is inadequate clearance between the valve and bucket. Better to set them on the loose side. Noisier, maybe, but the engine will run cooler.