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#shocks #suspension 2004 2004 yamaha 450 yfz 2005 2007 2008 2009 2013 2013 exhaust 2017 yamaha yfz 450r 450 450r a arms aftermarket ais delete backfiring barker big 3 big bore blown head gasket bog brakes buring oil carb carb jets chain clutch coolant crank crankshaft cutting out dasa ebc ecu ecu flash efi efi tunning engine exhaust factory fci forsale forum fuel controller fuel injected fuel programmer full exhaust general help high compression hmf intake jetting k&n filter knocking mapping maxxis metal misfire need help no start oillevel parts parts review plastics poor running ported power commander power commander v raptor razr rebuild rossier seal settings sprocket starting tps adjustment transmission trinity tune tune yfz450r tunes tuning tyres upgrade vision air vortex wiring wiring harness wont start yamaha yfz yfz 450r yfz450 yfz450 help yfz450 problems yfz450r yfz450x