miss fire

[M@X]

Hi all

My williams 2 has just developed a miss fire, seems to be worse below 4000 rpm.
Anyone got ideas on what i should check first.

Thanks in advance
Cheers Max

[busterhymes]

start with basics m8 plugs,plug leads, dizzy if you know someone with a williams swappin parts can help and save money also somethin to consider all the wet weather could be havin an affect on the electrics so a good sprayin of somethin like WD40 might help hope you get it sorted