>Hi all. > >I have a Derbi Predator O2 (unrestricted, around 7hp), and my spark plug >constantly gets clogged with soot. > ----The plug is just representing the conditions of combustion. I believe you're running too rich (too much fuel). Either jet down one size on the carb or...run more air (ram air system or a high perfomance freer flowing air filter). >Derbi recommends in the manual that a NGK B8HS (Bosch W3AC, Champion L82C) >is to be used as spark plug, and that's what I am using. > >Now, could it be due to the spark plug being too cold, that I get the >sooting? Should I try something warmer? Risks? > >Thanks! > >/Goran Share information about yourself, create your own public profile at http://profiles.msn.com.
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