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2004 polaris magnum 330, bad battery causing more problems

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So I cleaned the carb,tank,fuel lines, and ATV was bought to me with a weak battery, I hooked my 2 amp auto charger to it while I worked on it, battery didn't charge up, so I bumped up to 10 amps to get it started, idled and run ok sitting still, drove few hundred feet and headlights went bright and stopped working(blew out both of them), the ATV backfired and smoke came out handlebar area, took off Cdi box and seen it was melted on back side, my concern is, is the Cdi box also the regulator/rectifier, in that same unit? The ecm still seems to work, digital dash all still works , bike turns over but doesn't start obviously from the burnt cdi. I only See this.CSI box, and then the RCMP below it, but on sure the crap battery was my problem.

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