WE TEST LARRY WARD'S YOSHIMURA YAMAHA YZ450F MOTOCROSS BIKE:
Yes, that Larry Ward; The harder you push, the Yosh engine will push back. The stock YZ450F engine falls off in the mid-range. That’s not the case with the Yoshimura engine. If you want to go faster, hold on to your britches; Part One of MXA's YZ450F tests
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