Just got May’s Dirt Rider. In the KTM250SFX test they talk about how loud the bike is (about 106dB). They blame this mostly on the ignition box. They state, “The stock ignition fails to recognize high RPM with no load situation, in doing so it doesn’t advance the timing to quiet the bike down. That’s how most bikes are passing the sound test.” Is this new? Have the Japanese bikes been doing this for long? Does anybody know if, say a 2001 YZ250F has this ignition? I noticed that the bike has a gear position sensor. If I fail the sound test with stock exhaust at the first NETRA event is fiddling with ignition better than trying to repack the muffler? Is NETRA’s limit 99dB? Dirt Rider goes on to say they installed a Vortex ignition on the 250SFX and it passed a 99 dB test with a FMF muffler. I know there’s a lot of question marks in this post but maybe it will start some discussions. Thanks.