soap, in a pail of water and a piece of cloth will do, just wash
it like that, try not to use sprays as this will spray dirt into
harder to reach places, this is for the external,
for internal, just a damp cloth will do, for grease or coolant
residues, maybe just use abit if wd-40 will do, but be careful wif
the internal. u dun want water to go inside your spark plug dun
u?
