Reading the latest service manual: d06811 Ed.4, Rev.0 Jan 01, 2020 Then I get the impression from section 05-20-00 page 10 for replacement of spark plugs, that they need change at 200 hrs for up to 30% leaded fuel but 400 hrs for unleaded. Is that correctly understood?

  • Re: 912 spark plug service life

    by » 2 years ago

    That's probably assuming one is using the new Rotax-branded plugs.  In the previous manual, which allowed the NDK plugs, the intervals were 100 and 200.  I'm using the older plugs and will replace them (cost about $25 total) at the older recommended interval.

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