Back firing thru plemium on 500 efi??
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I have twin 500's and one of the engines's has been backfiring!! What is the cause? Is it in the Distributer or possibly low fuel pressure? I understand that Merc had a recall or TSB out on this problem. Is there a link to find out about any TSB from Merc. Can you plug the ECM's into a merc software computer and find out the problem like you can on a car? It mostly backfires upon acceleration.
Any suggestions would be appreciated. The engines are 2002 500EFI's
Any suggestions would be appreciated. The engines are 2002 500EFI's
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I'm not sure of any TSB's, but I'd probably start with the plug wires and distributer. A bad wire may be arcing causing the back fire or distributer cap cross firing undrneath. Good luck, keep us posted. Your findings may help out others.
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