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|photo= 1976-Yamaha-YZ400C-Yellow-514-0.jpg | |photo= 1976-Yamaha-YZ400C-Yellow-514-0.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = 76-79 | |production = 76-79 | ||
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|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class =Motorcross | ||
|engine = 397[[cc]] Air-cooled, 2-stroke, single | |engine = 397[[cc]] Air-cooled, 2-stroke, single | ||
|bore_stroke = 85mm x 70 mm | |bore_stroke = 85mm x 70 mm | ||
|compression = 7.59 : 1 | |compression = 7.59 : 1 | ||
|top_speed = | |top_speed =80 mph | ||
|power = | |power = | ||
|torque = | |torque = | ||
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|battery = | |battery = | ||
|transmission = | |transmission = | ||
|final_drive = {{chain|520x105}} | |final_drive = {{chain|520x105}} <ref name="1978_owners">{{cite book|title=1978 YZ400E Owners Service Manual|publisher=Yamaha|url=https://www.dropbox.com/s/5loq4u3c41mspzi/1978%20Yamaha%20YZ400%20E%20owners%20service%20manual.pdf?dl=0}}</ref> | ||
|front_sprocket = 15T | |front_sprocket = 15T | ||
|rear_sprocket = 50T | |rear_sprocket = 50T | ||
|frame = | |frame = Tubular steel double cradle | ||
|suspension = | |suspension = | ||
|brakes = | |brakes = | ||
|front_tire = {{tire|3.00-21}} '76 , '77-78 , '79 | |front_tire = {{tire|3.00-21}} '76 , '77-78 , '79 <ref name="1978_owners"/> | ||
|front_tire_psi = 13 | |front_tire_psi = 13 | ||
|rear_tire = {{tire|4. | |rear_tire = {{tire|4.50-18}} '76-79 <ref name="1978_owners"/> | ||
|rear_tire_psi = 15 | |rear_tire_psi = 15 | ||
|rake_trail = | |rake_trail = | ||
|wheelbase = 1450 mm | |wheelbase = 1450 mm<ref name="1978_owners"/> | ||
|length = 2145 mm | |length = 2145 mm<ref name="1978_owners"/> | ||
|width = 910 mm | |width = 910 mm<ref name="1978_owners"/> | ||
|height = 1180 mm | |height = 1180 mm<ref name="1978_owners"/> | ||
|seat_height = 910 mm | |seat_height = 910 mm<ref name="1978_owners"/> | ||
|dry_weight = | |dry_weight = | ||
|wet_weight = 103 kg | |wet_weight = 103 kg | ||
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|fuel_consumption = | |fuel_consumption = | ||
|turning_radius = | |turning_radius = | ||
|related = [[Yamaha MX400]] | |values = $1,000 - $3,000 | ||
|related = [[Yamaha MX400]]<br />[[Yamaha YZ400F]] | |||
|competition = | |competition = | ||
|manuals = [https://www.dropbox.com/s/5loq4u3c41mspzi/1978%20Yamaha%20YZ400%20E%20owners%20service%20manual.pdf?dl=0 1978 YZ400E Service Manual] | |manuals = [https://www.dropbox.com/s/5loq4u3c41mspzi/1978%20Yamaha%20YZ400%20E%20owners%20service%20manual.pdf?dl=0 1978 YZ400E Service Manual]<br />[https://www.dropbox.com/s/fq9oknr20nwgie1/1979%20Yamaha%20YZ400%20F%20owners%20service%20manual.pdf?dl=0 1979 Yamaha YZ400F Service Manual] | ||
}} | }} | ||
: ''This article is about the scooter, for the 1970s Motorcrosser, see [[Yamaha YZ400F]] for the recent version'' | |||
==1976 YZ400C== | ==1976 YZ400C== | ||
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). | ||
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File:1977-Yamaha-YZ400-Yellow-692-3.jpg|left|thumb|1977 Yamaha YZ400 in Yellow | File:1977-Yamaha-YZ400-Yellow-692-3.jpg|left|thumb|1977 Yamaha YZ400 in Yellow | ||
File:1977-Yamaha-YZ400-Yellow-692-4.jpg|left|thumb|1977 Yamaha YZ400 in Yellow | File:1977-Yamaha-YZ400-Yellow-692-4.jpg|left|thumb|1977 Yamaha YZ400 in Yellow | ||
File:1977-yz400-0.jpg|1977 YZ400 | |||
File:1977-yz400-1.jpg|1977 YZ400 | |||
File:1977-yz400-2.jpg|1977 YZ400 | |||
File:1977-yz400-3.jpg|1977 YZ400 | |||
File:1977-yz400-4.jpg|1977 YZ400 | |||
</gallery> | </gallery> | ||
<br style="clear: left"/> | <br style="clear: left"/> | ||
* SERIAL # 1W4-000101 - 006720 | * SERIAL # 1W4-000101 - 006720 | ||
==1978== | ==1978== | ||
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. | ||
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*[[Yamaha YZ250]] | *[[Yamaha YZ250]] | ||
*[[Yamaha YZ490]] | *[[Yamaha YZ490]] | ||
==References== | |||
{{reflist}} | |||
{{template:Yamaha YZ}} | {{template:Yamaha YZ}} | ||
{{Yamaha}} | {{Yamaha}} |