Yamaha continued to offer two different lines: the big YZ remained 360cc in displacement, while the new MX400 was 397cc. The MX was heavier and cheaper, but in a weird twist, most riders preferred it over the pipey YZ360.

2024年1月30日 · This Yamaha YZ400 is powered by a 396cc two-stroke single mated to a five-speed transmission and is finished in white with red and black graphics.

2008年5月7日 · Can anyone tell me the good or bad about the 1977 YZ 125/250/400D's? Any good mods for them? Last year of AHRMA Historic Class rules.

2008年2月22日 · My preference would be the '77 because of the classifications. The '78/'79 400 can't run with the 465, I tried in the 70's-81 and even riding the vintage circuit with my '78(bought new), not enough power.

1977 Yamaha DT 400 YZ Vintage Frame,swing arm, triple clamps,Fuel tank , foot pegs,brake backing plates. Engine runs great, transmission shifts solid through all of the gears.

Shop Motorcycle Parts for 1977 Yamaha YZ400 with eBay Guaranteed Fit. Great deals. Massive selection from top brands on eBay.com.

2024年8月26日 · Vehicle history and comps for 1977 Yamaha YZ400 VIN: 1W4006651 - including sale prices, photos, and more.

Buy a J.D. Power Motorcycle, Snowmobile, ATV, Personal Watercraft Appraisal Guide. Research 1977 Yamaha YZ400D - 400cc standard equipment and specifications at J.D. Power.

1977年3月1日 · YAMAHA YZ 400D. Cycle World MX Test. Faster with Less Effort than Anything in Class. New and Improved, as they say in the soap ads, fits the Yamaha YZ400 nicely. The starting point for Yamaha’s...

2003年3月6日 · Horsepower is a function of torque x rpm and since the modern 250's will rev higher than the 7000 rpms. It throws horsepower into comparing apples to oranges. also talking watercooled which allows you to run higher compresion, better manufacturing processes and materials allowing tighter tolerances etc etc...