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74 Z50 no longer has spark?
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[QUOTE="Jon K., post: 659192, member: 22460"] Z-50 with a voltage regulator? You got a battery on that beast? I bet what has happened is the points have closed up. The points cam is behind the flywheel and will get rust on it. Usually because the chain has come off and poked a hole in the mag cover, allowing all manner of mud and dirt and stuff into the mag. The rust will cheerfully wear away the points breaker block (the fiber looking thingie that rubs against the cam lobe). You can check your points gap (.020 is about right, it is supposed to break on the "F" mark) through the holes in the flywheel, but if you do indeed have a rusty points cam the flywheel will have to come off and you must polish the cam. Scotchbrite it for fifteen minutes or until you get a nice smooth finish. Dab a little grease on the felt to keep it happy. Oh, and make sure to look at the engine case and cover to see if there is any chain damage. Sometimes you can fill the engine case damage with Bondo. The cover is best replaced, as they are pretty cheap if I remember right. $20.00 or so. Keep us posted. :) [/QUOTE]
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Dirt Bike Brands - Other
74 Z50 no longer has spark?
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