[bullseyeprec]

if the intake is pretty clean, just has fuel stains....use carb cleaner....I use berrymans b-12 since its made to clean fuel and deposits it makes since it would do a good job. I spray it on a rag and cleaned up a little brown stain I had from a leaky metering block. I wouldnt hose down my engine with it unless it was a real mess....but the wet rag works well.