How to mend Derbi Senda 50

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

faring?

adam or bb from m?

i have a brand new 2010 derbi senda xrace ?

Derbi Senda Wont Run When Hot?

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

my derbi senda sm extreme 2007 ?

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

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

Which pipe goes to where?

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

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

derbi senda indicators?

runs fast then cuts out?

2003 Derbi Senda R50 6 speed?

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

my derbi gp1 open 50cc won't start?

derbi senda 54 plate leak?

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

derbi senda?

is the battery dead?

how to fix my petrol problem?

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

fixing my dtr 2001 model?

Derbi Senda Excessive Fuel Consumption?

Derbi Senda 50cc?

eletronic fault on my derbi senda extreme 03 plate?

please help with my Derbi terra 125?

My derbi senda 50cc keeps cutting out?

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