could very well with moisture. Keep it covered and if you wash it put a bag really tight over the intake cone (I suppose its a cone). Putting a rubberband and tapering it off will definatly help.
We all know how engines love moisture in the combustion process... they dont haha.
Tell us how it works out cecil and good luck.
__________________
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Plato, Apology
"On life's journey faith is nourishment, virtuous deeds are a shelter, wisdom is the light by day and right mindfulness is the protection by night. If a man lives a pure life, nothing can destroy him."
Buddha