How to mend Derbi Senda 06

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

2003 Derbi Senda R50 6 speed?

my derbi gp1 open 50cc won't start?

derbi senda indicators?

how to fix my petrol problem?

Derbi Senda 50cc?

faring?

Derbi Senda Excessive Fuel Consumption?

my derbi senda sm extreme 2007 ?

My derbi senda 50cc keeps cutting out?

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

adam or bb from m?

derbi senda?

Which pipe goes to where?

eletronic fault on my derbi senda extreme 03 plate?

i have a brand new 2010 derbi senda xrace ?

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

runs fast then cuts out?

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

is the battery dead?

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

fixing my dtr 2001 model?

derbi senda 54 plate leak?

please help with my Derbi terra 125?

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

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

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

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

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

Derbi Senda Wont Run When Hot?