in theory its you take old shim out, measure it and put a new shim with 0.05 less value. if i measure them with micrometer they are actually 2.57 and 2.59. or some 2.53 and 2.62 not very accurate. if you dont care about all valves having exactly the same values then its quick, you can set them to : 0.09,0.12,0.10,0.08. 2013-2017 KTM 690 Duke Carbon Fiber Gas Tank Side Cover Guard Cowling Fairing (Fits: KTM 690) Brand New. $299.95. KTM relaunched the 690 Duke again in 2016 with even more power from its single cylinder engine. A reworked cylinder head and bore/stroke ratio mean 73bhp is squeezed from the same 690cc capacity. rgF01zX.

ktm 690 enduro specs 2016