How to mend Derbi Senda Sm Xtreme

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

My derbi senda 50cc keeps cutting out?

Derbi Senda Wont Run When Hot?

Derbi Senda Excessive Fuel Consumption?

faring?

fixing my dtr 2001 model?

my derbi senda sm extreme 2007 ?

i have a brand new 2010 derbi senda xrace ?

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

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

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

Which pipe goes to where?

Derbi Senda 50cc?

2003 Derbi Senda R50 6 speed?

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

runs fast then cuts out?

my derbi gp1 open 50cc won't start?

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

derbi senda?

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

derbi senda indicators?

derbi senda 54 plate leak?

please help with my Derbi terra 125?

how to fix my petrol problem?

is the battery dead?

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

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

eletronic fault on my derbi senda extreme 03 plate?

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

adam or bb from m?