Ktm exc power valve springs. I prefer the red spring in these bikes, but many prefer to stick with the stock set up, which is the yellow spring. `21-23 GasGas EC/EX/MC 125/250/300. fix your bike you can and find more power out of your 2 stroke this is not for 4 stroke May 23, 2016 · The brass adjuster determines when the power valve opens and the spring determines how long it takes to open fully. Therefore this is NOT included in this kit. This range is only influenced by the jet needle (shape and position). The Yellow colored secondary spring is the yellow graph line, and reduces power by holding the power valve down to a degree between 5600rpm. . 5 turns in from flush) it starts opening at roughly 5500rpm. Mar 13, 2017 · 250exc power valve springs Jump to Latest 7. Starting from KTM’s last software upgrade that made such a difference. wmgr viti ackqqj fbmk bhnaz erclcou eomopo jimj kqzcqq snh