Yamaha MX250 MX400 Oil Seal Kit 1975 250 400 Engine Crank Shift Kick Clutch SprocketHere is an essential and very helpful item if you are working on, restoring, riding or racing a Yamaha MX250 or MX400 for 1975 year only. This is the Engine Oil Seal Kit to help seal up the crankcase on your engine. You don't want any air leaks in your engine. This set contains both left and right Crank case seals, your Sprocket output shaft seal, Kick start shaft seal, Shift Shaft seal and Clutch seal. Everything you need to get your bike running top

George Strahle(#66) and Bill Tuman (#51)

Top-quality aftermarked item with Japanese materials

Lots of great footage of the GP follows

then you engine has the later style seal or may have been warranty/ retrofitted

These were the 339cc OHC Single cylinder bikes

Alen Grant/ Allen Green    81    Cheetah

This would have been a very old bike at the time

This bike was made in 1968 1969 1970 1971 1972 1973 1974 1975

This is a great find

#171 Walter Balchuna

You can see him clearly streaking by on the straight and in the corners too

This gasket set is correct and will fit the following models:  KZ440 A1/A2/A3/A4 LTD (80-83)