how com my rs aprilia wont spark the spark plug works coz ive put in my other bike.could it be the coil.ive check all the fueses aswell,what could it be can any1 help..

boy, December 2010

ive got a problem with my aprilia rs 125. I have power going to head light and indicators but I have no spark coming out of my HT coil. I've checked all wiring and all looks good there.

Andy, October 2014

it only sparks wen bumpin it, when tryin to use the elecrick start it dont seem to wonna spark so dose that mean it could be the killswitch not earthin propley!!!!!!!!!

boy, January 2011

i took the ht cap off put it next to the head still no spark,when i first brought the bike,it at to be bump started to get her runnin because the starter motor was gone, so i rid the bike home after buyin it,then the next day i got new stater motor and now it seems weired that putin it on and it for not to work thro the electrick start witch i was hopein for, she wont evein bump start now..... dose that meen it was sparkin wen i bump started it!!!

boy, January 2011

aha , a common problem on these bikes i afraid,the run switch packs up on them quite often(right hand handlebar).i would say its that 90% likely to be that but it could of course be other problems like the stand switch the igntion switch the cdi unit the ht cap on the secondary or primary coils.try undoing the ht cap off the end of the ht lead and holding it a few mm away from the head for instance and then spin her over and see if she sparks first.get stuck give me a Q

adam bike doctor(of milton keynes motorcycle centre), January 2011

no spark. Work back wards. Ok your plug may be sparking but doesnt mean it is any good. Replace it!
The check leads are tight and then you are into replacing the HT cap leads and as you say coil.

After that then it is Adam the Doctor you need to speak to!

However It could be a bad earth or loose connection.

bb, January 2011