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Kawasaki MX & Off-Road Dirt Bikes
kx250f TDC PROBLEM
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[QUOTE="Rich Rohrich, post: 1433339, member: 16241"] There is 720 degrees (2 complete revolutions ) of crank rotation in one "stroke" or power cycle so yes it will hit TDC twice, but only one TDC is correct for timing the cams and adjusting the valves. TDC on Compression with all the valves closed is the one we are looking for most of the time. Yes, the spark fires at each TDC in this type of system. It's called a "lost spark system" and it's pretty common with modern engines. Some more advanced systems will use a cam position sensor to determine the TDC on the Compression stroke. This type of sensor is most often seen in EFI equipped engines to determine the correct point to fire the fuel injector. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
kx250f TDC PROBLEM
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