My speedfight will not work from electric start or kick start, i have changed spark plug, battery, checked carb, changed cdi box, all i seem to be getting when i kick start the bike is either loud pluttering or backfiring, if it dus eventually start its will cut straight out, this all happened when the bike cut out on me when i slowed down n now it wont go! please can you help???

Tony Learmount, January 2008

hi i reackon it is the magneto i changed mine today it it works fine for about 3hours now i have no spark

MICKYG_101 hotmail.com, September 2009

could need replacment oil and tke out the spark plug warm it up on the oven stove for about 2minutes till its hot and quickly fit it in to the bike and give it a try???

T, January 2008

i have cleaned the carb mate no such luck

tony learmount, January 2008

hi tony,try cleaning the carb out,worth a try

steray, January 2008