gilera dna 125 power problem?

how much would it cost to get fixed mate? and thanks alot for your time

liam keaney
March 2010

to me it sounds like one of the rocker arms has broken,the dna like a runner vx uses a 4 valve head and if one of the arms breaks it will still run but be very low on power as the gases can not either enter or leave fast enough all depending on whether its an inlet rocker or an exhaust rocker that has snapped.it could also be a baffle in the exhaust thats blocking the exhaust gases from getting out of the exhaust quick enough.

adam bike doctor
March 2010

i cant but my eye on exactly were is sounds like its coming from the the cylinder head.its ok just idling but when i rev it starts raterling and it is goin sooo slow

liam keaney
March 2010

where is the noise coming from? Try and give just a little more information. Is it the engine or belt area?

bb
March 2010