Yamaha IT Enduro Models Are Separate Families
Yamaha’s IT name covers several off-road and enduro displacements rather than one interchangeable platform. Yamaha’s product history places the IT400 in the mid-1970s lineage, followed by models including the IT175, IT125 and later IT490. PartsNMore’s current active inventory is strongest for IT250 and IT175, followed by IT400, IT425, IT125, IT490 and IT465 applications, with additional IT200 coverage.
Treat the lightweight IT125 and IT175, later IT200, multi-year IT250 and large-bore IT400, IT425, IT465 and IT490 as separate service models. The sequence of displacements reflects Yamaha’s evolving off-road range, not a blanket chain of interchangeable engine, carburetor, ignition, clutch, chassis or suspension parts.