It could have a catalytic convertor in the exhaust. Try buying a racing pipe if that doesnt help then get a new spark plug and refill your oil.
Boothy
April 2007
Hi winston,it could be the exhaust pipe blocked up or possibly the spark plug arking out down the electrode or the ht cap shorting to earth(this is the cap that fits onto the spark plug) ok adam
adam bike doctor
January 2006
Hi gemma,it could be the exhaust pipe blocked up or possibly the spark plug arking out down the electrode or the ht cap shorting to earth(this is the cap that fits onto the spark plug) ok adam