Thread: Which spark plugs for FE390 ?
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Old 06-22-2014, 02:51 PM
Stephan427SC Stephan427SC is offline
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Default Which spark plugs for FE390 ?
Which spark plugs would you prefer for a FE390 stroked to 445 cui ? I actually use Autolite Optima 3924.....whats your experience...?

Thanks, Stephan
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