The reason why people complain that the YZ's r not updated/ old technology is because Yamaha has New updates from their 4 strokes that they could put on the YZ's without modifying but chose not too.
Examples:-Revalved/ lighten suspension
-Improved levers/ perch
-New Triple clamps
-Lighten axles and hubs
-New hydro-form swing arm
-New linkage
-Bigger Foot pegs
That's just a few I could think of, I'm sure there is more that could be easily machined to work. Darn Yamaha!
Off topic:Was just thinking....If I was a billionaire like Gates
. I would give a couple million to Suzuki to have them produce a all new Rm250 and Rm150. hehehe
But I would have some requirements:
-Steel frame
-hydralic clutch
-brembo brakes w/oversize wave rotors
-Carburetor (works great, why change it to something more complicated?)
-New plastics
-Completely new motor
-4T style shrouds
-Yamaha style hydro swing arm
-Billet triple clamps
-1 1/8 bars
-$6500 max MSRP =)
awww a man can only dream.....