How to mend Derbi Senda Xtreme

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

i have a brand new 2010 derbi senda xrace ?

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

my derbi gp1 open 50cc won't start?

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

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

faring?

eletronic fault on my derbi senda extreme 03 plate?

derbi senda?

Derbi Senda 50cc?

runs fast then cuts out?

derbi senda 54 plate leak?

please help with my Derbi terra 125?

Derbi Senda Excessive Fuel Consumption?

my derbi senda sm extreme 2007 ?

fixing my dtr 2001 model?

adam or bb from m?

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

My derbi senda 50cc keeps cutting out?

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

Which pipe goes to where?

derbi senda indicators?

2003 Derbi Senda R50 6 speed?

is the battery dead?

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

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

how to fix my petrol problem?

Derbi Senda Wont Run When Hot?

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

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