Yamaha RD400 track day
A few laps on my RD. It was just starting to rain. Stage II porting, Wiseco RZ pistons, 34mm carbs, large TDR reeds, Dyna III ignition, Works shocks, fork valves, steering stabilizer, Avon tires, 105 octane gas, 20:1 Yamalube R oil mix.
1980 yamaha rd400f
My 1980 RD400F last of the air cooled RD's fully restored engine has had a full crank rebuild, rebore new pistons rings seals etc ready to run in :-) .