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I have a 2005 skidoo 1000 SDI. It has ran like a champ up until this season. Put new plugs in and 35 miles later both plugs are fouled. Running BR9ecs-5 nkg plugs. I thought my idle was a little low so I turned the throttle up to about 1500 rpms. Seems to be running a little better but still not 100%. I run Klotz full synthetic for oil. Just curious to see if anybody has any ideas. I am thinking possibly reed valves? Or possibly stale fuel? Each season I also run a little Lucas tune up in a Bottle through the fuel to give everything a good clean.
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