Bike is a 1990 zzr. Have a feeling it was raced because had to change the gears from GP style to street.
Need to make a compression test on each cylinder in case you need a new cylinder head gasket, test the thermostat and check that the radiator fan works ok.Also after installing a new battery (which you should cause the old one will damage you regulator eventually) check that the charging system works ok.
SOURCE: zzr 250 fault
dirty or loose grounds or a dirty or malfunctioning relay check your harness connectors as well get some electrical grade spray and pop open all connectors and give em a good dose undo all grounds and clean and re tighten them cheapest and easiest is sometimes the best Bought a bike dirt cheap cuz two mechanics couldn't figure out that the coil pack under the tank was crusty and from oxidation
SOURCE: timeing for a zzr 250
If it's ignition-timing it's designed not to be altered or set, why do you need to set it?
If it's cam-timing i'll put a detailed explanation, let me know m8.
SOURCE: My bike was in racing out fit. I need to bring it
Download the manual from this link:
http://www.zx-10r.net/forum/showthread.php?t=59403
Please do not forget to rate my solution if you find it helpful.
SOURCE: where do fuel lines connect to on 92 zzr 250
Hi and welcome to FixYa,
On a ZZR250, the only fuel line is from the petc0ck to the Tee between the carbs.
Good luck and thank you for asking FixYa.
SOURCE: ZZR 250 fault. wont start.
Please check for a grounded wire, which cause your erratic sparkplug performance and headlight operation
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