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| James Dean | profile | all galleries >> Galleries >> KTM 2-Stroke 250/300 POWER VALVE TUNING -Picture Gallery | tree view | thumbnails | slideshow |
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 KTM Power Valve Opening vs Engine Speed |
 Power Valve Colored Spring Adjustment RPM 2013-16 |
 PWK28 vs PWK41 vs PWM38 |
 JDJetting Dirt Rider Power Valve Tuning Article Lead-in |
 PV BOTTOM LINE- Turning out the PV screw lowers power 4.5-6K, Turning inwards or a stiffer colored spring loses power 6-8K rpm |
 JDJetting Dirt Rider Power Valve Tuning Article 2- Turning PV Screw Outwards Lowers Power 4.5-6K rpm |
 JDJetting Dirt Rider Power Valve Tuning Article 3- Turning PV Screw Inwards Lowers Power 5.5-7.5K rpm |
 JDJetting Dirt Rider Power Valve Tuning Article 4- Stiff colored Yellow and Green Springs drop 6-8K Power |
 KTM 300 Power Valve- Turning Screw Outwards from Approximate Mid-Point |
 KTM 300 Power Valve - Turning Screw Inwards from Approximate Mid-Point |
 KTM 300 Colored Power Valve Spring Comparison- None Red Yellow Green with PV Screw Near Midpoint |
 Powervalve Springs- Adjustment (Dolly adjust) Springs and Red, Blue, Yellow, Green Auxiliary Springs |
 Testing for Power and Jetting on Dyno |
 KTM 300XCW |
 KTM Power Valve Opening vs RPM with Springs and Dolly Screw Position- Threads Showing by Turning Inwards |
 Red Spring- Screw Settings Low(in), Med, Hi(out) |
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