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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
2000 YZ250 Setup (flywheel weights, porting etc.)
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[QUOTE="Rich Rohrich, post: 492738, member: 16241"] Assuming that can be really expensive when you guess wrong. You can read the heat of the plug fairly easily once you get the jetting sorted out. No one ever hurt an engine running too cold a plug, but the trails and tracks of America are littered with engine parts from folks who ran too hot a plug. Read the plug and you'll know if a 7 is safe for your use. There are a number of threads here on DRN that go into great detail on how to determine proper heat range. Here's just one of the many ==>> [URL=http://dirtrider.net/forums3/showthread.php?s=&threadid=48348]Click Here[/URL] [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
2000 YZ250 Setup (flywheel weights, porting etc.)
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