Yamaha YZ250(R)/LC Owner's Service Manual

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Contents

6-5IGNITION SYSTEM ELEC2. Inspect:9Source coil 1 resistanceOut of specification Replace.Tester (+) leadBlack/Red lead 1Tester (–) leadBlack lead 2Source coil 1 Tester selectorresistance position720~1,080Ω at Ω × 10020°C (68°F)EC62B000SPARK PLUG CAP INSPECTION1.Inspect:9Spark plug capLoose connection Tighten.Deteriorated/Damaged Replace.9Spark plug cap resistanceOut of specification Replace.Tester (+) leadSpark plug lead terminal 1Tester (–) leadSpark plug terminal 2Spark plug cap Tester selectorresistance position4~6kΩ at kΩ × 120°C (68°F)EC627011CDI MAGNETO INSPECTION1. Inspect:9Pick-up coil resistanceOut of specification Replace.Tester (+) leadWhite/ Red lead 1Tester (–) leadWhite/ Blue lead 2Pick–up coil Tester selectorresistance position248~372Ω at Ω × 10020°C (68°F)