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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
"Ping" sound after pilot jet change - '99 KDX200
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[QUOTE="23jayhawk, post: 645059, member: 30749"] At the risk of this starting to sound like a SNL skit, I've always found that when the low end jetting is dialed in (i.e. crisp & sharp), I get a ting-ting-ting sound when I motor along at a steady low-load, part throttle opening. It almost sounds like someone tapping on the expansion chamber with a welding rod. It basically sounds like you're getting 100% combustion of the mixture. No, it's not 100%, but the sound is much more crisp than when the low end is a bit fat. The individual firing pulses are much less distinct sounding when it's on the rich side. As far as whether you should be concerned over being too lean, my experience is that you'll encounter a lean bog before getting too far in that direction. If you're getting crisp throttle response and the bike basically rips on low end, perhaps you've simply found a good jet set. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
"Ping" sound after pilot jet change - '99 KDX200
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