Ultimate Yamaha aircooled stroker. Generally tough motor can run to 50k but sixth gear wear, small-ends and crank seals susceptible – if it doesn’t wheelie in 2nd then engine worn out! Crap disc, good chrome and poor paint. Best buy’s the E model as long as the electronic ignition doesn’t burn out. Plugs oil in low speed riding and regular decoking’s needed. Still some nice, well loved bikes on offer but becoming a bit pricey. Beware of near rats masquerading as decent machinery.