gilera dna 50 51 reg when it is running the bike loses all power after about 15 20 mins any 1 help me as its my first bike cheers

karl, April 2010

If the bike has had a new performance pipe fitted ,it may be jetted to rich,so would run fine till it has warmed up,usually 15mins.with out knowing the history of the bike its hard to say.also check the oil pump is working ok as i seem to remember the cable can stick where it joins the throttle cable

mikc, April 2010