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Why the F


band1t

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They had their YZ line of dirt bikes prior to 1987, so naming it the YZ350 would have been misleading. The YFM line has always been more their "trail oriented" and utility quads, while the YFZ models have been their sportier quads.

 

 

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Yamaha just does that since 4 strokes were actually an after thought.

The official designation for the motor in my Blaster is a 1979 YZ400F. Why? Because the 78' 400 was a YZ400D and in 77' it was a 400C

Then in 98' They came out with the poker that started the 4 stroke craze. It was a YZ400F.

Kinda make finding parts a PITA.

Idiots on youtube argue with me to this day telling me my motor is a 4 stroke.

Rule of thumb. Any older bike with the same name as the youger one is always faster.

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