Question about 2005 kawasaki ZZR 250
As I'm sure you suspect, changing the oil and sparkplugs should have nothing to do with the symptoms you've outlined. The symptoms "seem" to indicate a problem in the charging system. Either the battery is in need of replacement or the regulator is fried. One way to test which is at fault is to jump start the bike (be VERY careful doing this as a car battery will fry your system if you connect it wrong). Once it is started, remove the jumper cables. If you need to rev the engine slightly to keep it running, this is normal as a dead battery is a big draw on the electrical charging system. If you can, have a friend hold the bike RPM's around 1500 and disconnect one of the battery leads on the bike's battery. If the bike continues to run (my suspicion is it will), you have a bad battery. If the bike will not run, then the charging system is the culprit. It could be something as simple as a regulator or as complicated as the generator (inside the engine).
Posted on Apr 10, 2011
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Posted on Jan 02, 2017
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