These particular engines are known for the magnets on the flywheel coming unglued and moving around even sometimes coming apart. So I got this thing in and suspected flywheel problem right away but thought it would be fun to scope it first just to get a look at the pattern and be able to identify this with out couple hours worth of labor pulling side cover. The magnets are supposed to be evenly spaced inside the flywheel which should reveal an even AC wave.
2004 Suzuki Eiger 400 No Spark (ATV)
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Finally got around to fixing this thing after fighting with the removal of old flywheel. Couple pictures first of the updated flywheel to fix the magnet movement issue and second of the corrected AC pattern.Comment
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So..... where are the magnets for the new flywheel?
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I've seen the tone rings for ABS speed sensors integrated under the rubber compound of dust seals , but not sure what type of non ferrous metal the magnets must be spaced and pressed or epoxied between the inner and outer surfaces of that flywheel. My guess is the flywheel weighs a little more, and not rev as responsively, but could actually dampen engine vibration better?Comment
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