Question about 1998 Aprilia RS 250

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1998 Aprilia RS250 Still Spluttering

I have got the 1998 Aprilia RS250 with the splutter. I have corrected the gap on the plug to 0.7mm as sugested in the manual, but I still have the splutter. Can this also be caused by a bad battery. Why I ask is, when I turn on the lights on and the bike is idling it cuts out.

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Hi and welcome to FixYa,

Your described problem could be the battery but I am also inclined to suspect the voltage regulator. If the 'splutter' is when revving/higher RPMs, then the CDIs are cutting off possibly because of higher than normal voltage from the regulator and/or the battery is not loading the system(charging). Try charging the battery externally for at least a couple of hours, try and observe. You can also have the battery tested. If the battery checks good, accepts a charge and the bike will run normally after being charged, then the regulator must be considered.

Good luck and thank you for using FixYa.

Posted on Feb 11, 2009

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