marky1983 Posted December 19, 2012 Share Posted December 19, 2012 Hi everyone im new to the forum and want to pick some brains.. I have 2002 thundercat YZF 600 had a lot of gear box problems with current engine, im looking to replace engine with a 1997 thundercat engine , anyone know if this would be compatible and would there be much horse power difference, many thanks Mark Link to comment Share on other sites More sharing options...
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