XJ900fTrike Posted June 1, 2020 Share Posted June 1, 2020 As we all know getting brand new pistons for the xj900f can be very hard. But over the years with trail and error I have found some available now.. You will find the xj900f standard bore is 69mm The Suzki 850 over sized is 70mm and the dome is 1mm taller.. I have designed and built my own Trike and the 1mm taller dome makes more hp the faster you go... The higher speeds means you will need racing oil... Please be careful. Thanks Quote Link to comment Share on other sites More sharing options...
Moderator drewpy Posted June 1, 2020 Moderator Share Posted June 1, 2020 good info, did you have to machine pockets for the valves? Quote Link to comment Share on other sites More sharing options...
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