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  1. #1

    Join Date
    May 2008

    Another Spark plug question

    I decided to put a 70:1 oil mix on top of the regukar oil pump mix due to the whole line failure proability on the Ultra. First time out I fouled a plug. No bid deal sucks but whatever, its just a plug. My flame arrestor has a label that says o use NGK BR9ES, is this right? I dont know about this whole CDI thing. It has Iridium plugs in it now but does it need them? What are some options for this boat?

  2. #2
    Are you sure it's an Ultra? The Ultra's are 4 strokers, either the LX or supercharged 250X. Mixing the fuel isn't necessary. If it is the Ultra LX, it takes Kawi part # 92070 PLUG-SPARK,CR9EK(NGK) or part # 92070A PLUG-SPARK,CR8EK(NGK) (OPTION). If it's the Ultra 250X it's Kawi part #92070 PLUG-SPARK,PMR9B(NGK). This is right from the Kawi micro-fische for 07 and 08.

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