How to mend Derbi Senda 50cc

how do i open the valves fully on my dtr 125 02 model?

faring?

my sons derbi 50cc bike was going yestewrday then it started to smoke a bit?

Derbi Senda Excessive Fuel Consumption?

eletronic fault on my derbi senda extreme 03 plate?

derbi senda 54 plate leak?

runs fast then cuts out?

Derbi Senda 50cc?

Which pipe goes to where?

petrol is pushed through the exhaust port on my derbi senda 06?

derbi senda indicators?

Derbi senda , no fuel coming through the pipes from the tank to the carb?

my derbi senda sm extreme 2007 ?

adam or bb from m?

how to reset the service light on my Derbi terra 125?

i have a derbi senda 50cc, on starting it revs straight up to 900 rpm. ?

Derbi Senda Wont Run When Hot?

is the battery dead?

how can i fix my derbi senda x-treme indicators?

My derbi senda 50cc keeps cutting out?

fixing my dtr 2001 model?

my derbi senda's spark plug turns black after one run? plz help?

how can i get my head bolts out they have snapped ? derbi gpr?

derbi senda?

how to fix my petrol problem?

i have a brand new 2010 derbi senda xrace ?

please help with my Derbi terra 125?

my derbi gp1 open 50cc won't start?

2003 Derbi Senda R50 6 speed?

My derbi senda has orange spark and won't start ?