devo8 Posted March 14, 2015 Report Share Posted March 14, 2015 Has anyone fitted a S3 head and low compression insert to a 2012 290 , and what difference did it make to the fueling , mine seems too rich and bogging down. Any comments would be appreciated. Quote Link to comment Share on other sites More sharing options...
wakka Posted March 14, 2015 Report Share Posted March 14, 2015 Hi S3 Head works fine, all i did was change the Pilot jet from 48= 45, main jet down 1 size, was a bit rich when fitted the head now its great Wakka 1 Quote Link to comment Share on other sites More sharing options...
devo8 Posted March 16, 2015 Author Report Share Posted March 16, 2015 Thanks , I'm finding its bogging from the bottom when you give it a some , Quote Link to comment Share on other sites More sharing options...
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