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Difference between revisions of "Yamaha YZ400"
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Take a 1975 [[Yamaha_MX400| MX400]], paint it Yellow and add the spedo air forks and you end up with the 1976 YZ400C (I only saw 1, I swear it felt like an MX400). | Take a 1975 [[Yamaha_MX400| MX400]], paint it Yellow and add the spedo air forks and you end up with the 1976 YZ400C (I only saw 1, I swear it felt like an MX400). | ||
[[Image:1976-Yamaha-YZ400C-Yellow-514-0.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-1.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-2.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-3.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-4.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-5.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-6.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]][[Image:1976-Yamaha-YZ400C-Yellow-514-7.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | [[Image:1976-Yamaha-YZ400C-Yellow-514-0.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | ||
[[Image:1976-Yamaha-YZ400C-Yellow-514-1.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
[[Image:1976-Yamaha-YZ400C-Yellow-514-2.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
[[Image:1976-Yamaha-YZ400C-Yellow-514-3.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
[[Image:1976-Yamaha-YZ400C-Yellow-514-4.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
[[Image:1976-Yamaha-YZ400C-Yellow-514-5.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
[[Image:1976-Yamaha-YZ400C-Yellow-514-6.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
[[Image:1976-Yamaha-YZ400C-Yellow-514-7.jpg|left|thumb|1976 Yamaha YZ400C in Yellow]] | |||
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A great leap forward in frame, engine and suspension design, the 1977 YZ400 was only lacking in it's ability to track corners because of the round tubular swing arm that caused too much flex. The [[monoshock]] was now encased inside the [[Monocoque frame]] that ran under the gas tank. | A great leap forward in frame, engine and suspension design, the 1977 YZ400 was only lacking in it's ability to track corners because of the round tubular swing arm that caused too much flex. The [[monoshock]] was now encased inside the [[Monocoque frame]] that ran under the gas tank. | ||
[[Image:1977-Yamaha-YZ400-Yellow-692-0.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]][[Image:1977-Yamaha-YZ400-Yellow-692-1.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]][[Image:1977-Yamaha-YZ400-Yellow-692-2.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]][[Image:1977-Yamaha-YZ400-Yellow-692-3.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]][[Image:1977-Yamaha-YZ400-Yellow-692-4.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]] | [[Image:1977-Yamaha-YZ400-Yellow-692-0.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]] | ||
[[Image:1977-Yamaha-YZ400-Yellow-692-1.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]] | |||
[[Image:1977-Yamaha-YZ400-Yellow-692-2.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]] | |||
[[Image:1977-Yamaha-YZ400-Yellow-692-3.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]] | |||
[[Image:1977-Yamaha-YZ400-Yellow-692-4.jpg|left|thumb|1977 Yamaha YZ400 in Yellow]] | |||
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* SERIAL # 1W4-000101 - 006720 | * SERIAL # 1W4-000101 - 006720 | ||
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Expanding on a good thing, the 1978 YZ400 became stable with the box section aluminum swing arm and longer travel (at both ends). The bike was a bit heavy (tipping the scales around 240 lbs.) but long gone was the cracks in the frames, common with the previous (non-Monocoque) designs. The rake was also a bit long which made the 1977-1978 YZ400s better at cross-country than in motocross. | Expanding on a good thing, the 1978 YZ400 became stable with the box section aluminum swing arm and longer travel (at both ends). The bike was a bit heavy (tipping the scales around 240 lbs.) but long gone was the cracks in the frames, common with the previous (non-Monocoque) designs. The rake was also a bit long which made the 1977-1978 YZ400s better at cross-country than in motocross. | ||
[[Image:1978-Yamaha-YZ400E-Yellow-5456-0.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]][[Image:1978-Yamaha-YZ400E-Yellow-5456-1.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]][[Image:1978-Yamaha-YZ400E-Yellow-5456-2.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]][[Image:1978-Yamaha-YZ400E-Yellow-5456-3.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]] | [[Image:1978-Yamaha-YZ400E-Yellow-5456-0.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]] | ||
[[Image:1978-Yamaha-YZ400E-Yellow-5456-1.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]] | |||
[[Image:1978-Yamaha-YZ400E-Yellow-5456-2.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]] | |||
[[Image:1978-Yamaha-YZ400E-Yellow-5456-3.jpg|left|thumb|1978 Yamaha YZ400E in Yellow]] | |||
<br style="clear: left"/> | <br style="clear: left"/> | ||
* SERIAL # 2K8-000101 - 007406 | * SERIAL # 2K8-000101 - 007406 | ||