just took spark plugs out to replace and they look a bit sooty (black ) it ticks over great and runs fine other than it sometimes is a little unresponsive when you press the pedal it takes a couple of seconds to pick up ?

Sooty plugs usually mean running rich, check your air filter.
When running right the plugs are usually a nice coffee brown.

[quote name='Stoney871' timestamp='1344358394' post='199378']
Sooty plugs usually mean running rich, check your air filter.
When running right the plugs are usually a nice coffee brown.
[/quote]
will be changing the air filter when it is deivered in next day, also while i am at it i am going todrop the oil and put fresh oil in aswell question is do you know wht the correct oil i should put in as there are so many 9 semi, full synthetic etc
thanks in advance

Magnatec 5w30 fully synthetic is the recommended oil.