Author Topic: Yamaha RD400. The Model Guide  (Read 108872 times)

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Online SupeRDel

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Yamaha RD400. The Model Guide
« on: December 26, 2005, 03:18:19 AM »
The Basic Yamaha RD400 Model Guide



This is a list of the models thru the 400cc range to the best of my knowledge. This list is UK based. Overseas models details may vary.YAMAHA RD400C. The first of the 400"s that was first introduced in 1976. The first ones had wire wheels with the mags as a ?30 optional extra. Nearly all were sold with the mag wheels. (example - see below)









YAMAHA RD400D or DX. This model ran from 1977 into 1978. The C and D models were using points ignitions. Both had footrests bolted under the frame like the early 70"s RD350"s. The D model now has a seat tail cover. Wheels were plain alloy coloured like the C or black painted.









YAMAHA RD400E Probably the most remembered and sought after is the E in white with red graphics. The Zeros on the side panels are filled in black. The points are now gone to be replaced with CDI. The footrests are now mounted on the sides of the frame. Thinner spokes on cast wheels, 35mm forks, revised porting giving 44hp on the 400, single piston floating alloy brake calipers, larger bore exhausts.  Note. If you intend to fit expansion chambers then be careful when buying as the rear mount positions have moved from the C and D models.













YAMAHA RD400F 1979. Just a few minor changes, dog leg handle bar lever. Side panel graphics MAY differ slightly from the E. The back ground behind the zero"s are hollow (not filled in black). Both the E"s and the F"s came in white which causes great confusion. The true test is to check the frame/engine numbers (see below)

 











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Below are the model that were available in the USA, Canada and Oceana regions.The 1976 RD400C. Early RD400"s came with wire wheels. The alloy wheel was an optional extra costing more. This one is mine in the condition I found it. Looks a lot better now.









This is the picture from a USA brochure of the bike with alloy wheels. All C models had alloys that were in natural plain grey. This early photo also shows the bike with a solid full length exhaust. Pretty sure only a few, if any, ever made it to the road like that. All 400"s have a rubber exhaust joint - 400"s never had a castle nut downpipe join. If you see a bike for sale with castle nut exhausts - they are off a RD250.  









This is the RD400D from 1977. In some countries they came with slimmer fuel tanks holding 13litres. The fatter tanks hold 16.5 litres. There is No seat cowl either unlike the UK "D"









This is the 1978 RD400E. Same graphics as the D but in different colours. Unlike the UK "E" the frame is still the same as the C/D with underslung footrests and a straight kick start. The seat has now got a rear cowl as well.









The Yamaha RD400 Daytona. Probably the ultimate in the 400 range. The heads are joined with a Ram air type cowl.







Colours....UK and Europe and USA

1976. RD400C

1617.. 98/LGB.. Low Gloss Black1653.. 63/BR.. Brilliant Red75.. Marine BlueChappy red (USA)Geneva green (USA)

1977. RD400D

1604.. 29/CB.. Candy Blue 20.. Chrystal Silver 1815.. 26/CPY.. Competition Yellow E8.. Modena RedChappy red (USA)French Blue (USA)

1978. RD400E

 20.. Chrystal Silver 1732.. 36/W.. Clean White H6.. Macho Maroon75.. Marine BlueCrystal Silver (USA)Carmine Red (USA)

1979. RD400F

 20.. Chrystal Silver 1732.. 36/W.. Clean White 26/CPY.. Competition Yellow 98/LGB.. Low Gloss BlackDaytona. Pearl White (USA and Canada) Some of the above are listed against the RD250 as well and some of the colours listed against models I have never seen in the flesh or pictures of them. But the paperwork says they were made.

Model NumbersEurope.

1976.. 1A3-000101 C model

1977.. 1A3-100101 D model

1978.. 1A3 110101 E model

1979.. 1A3-330101 F model

USA.

1976.. 1A1-000101 C model

1977.. 1A1-100101 D model

1978.. 1A1-110101 E model

1979.. 2V0-000101 Daytona





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Yamaha RD400. The Model Guide
« Reply #1 on: August 13, 2006, 07:11:25 AM »
Wot you see above is just a basic guide there are many variations around the world. I will try to add more of the model colours and numbers when I can. If you have any information and details to add then please do so below and I will see wot I can do to add to the listing. If you are new and have a question then please ask via the "tech section" or try the forum "search". Many questions repeat so your answer may already be there. If not or No luck then please ask
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Offline Griff

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Yamaha RD400. The Model Guide
« Reply #2 on: October 22, 2006, 04:47:30 PM »
just like to say my 250E had was red n white with black wheels and the zeros were filled in black when it was new ,1978 model without dog leg levers. the slightly later F had the red wheels dog legs and the zeros were not filled in black + the cdi has bullit connectors not a block connector. As i had one of those too silly things i know but people do ask, ps im not having a go and keep up the good work dude.
« Last Edit: December 19, 2014, 03:05:28 PM by Paul Dawkins »
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Yamaha RD400. The Model Guide
« Reply #3 on: October 22, 2006, 05:27:18 PM »
The zero info came from Glen Oliver our graphic expert and reproducer.
I am not surprised to find that things were miss-matched.
Yamaha did some confusing things
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Yamaha RD400. The Model Guide
« Reply #4 on: October 25, 2006, 06:57:17 AM »
No worries at all mate. I"m not saying my guide is spot on. Its just a general guide, you will never stick them down exactly to every minor detail.I agree the 400E either had red or black wheels, and straight leversthe400F had the dog leg levers, probably red or black wheels as well.The filled in zero"s were mainly fitted to the E, I would not be surprised if some F"s had them as models changed.
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Yamaha RD400. The Model Guide
« Reply #5 on: February 12, 2007, 09:20:59 AM »
just to add a few facts here;

the RD400 originally arrived in the US and australia with a solidly mounted engine hence the un-jointed pipes
this was going to be the production model until the bike was tested in europe and slated for its heavy vibration caused by the longer stroke
this then led to a series of stop gap measures to help this including
a rear rubber mount for the pipes and indeed the jointed type seen on the 250 before eventually settling on the engine mounts and rubber joints as seen on the final 400 model

there were some UK machines around during the early days with variations of either of the above although i know one for certain that had later pipes fitted in 1977
and around 150-200 RD400 "C" models with the solid pipes as pictured above


Offline Martin Paul

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Yamaha RD400. The Model Guide
« Reply #6 on: December 21, 2007, 02:09:54 PM »
The "F" model has a slightly different front wheel, the holes for fixing a second disc have been removed.
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bazerque

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Yamaha RD400. The Model Guide
« Reply #7 on: February 29, 2008, 11:23:42 AM »
I have an RD 400. Must be 1980 canadian model, but I am not aware of that.



Its number (coincident chassis and motor) is 3M4001470. It runs on CDI, not points.

I have seen a list of Yamahas" motor numbers that classified it as an RD400G.

I do not know why the number does not coincide with that quoted by the canadian guy, perhaps my bike is a model for Japan.



It was first ridden here (South America) in 1981, but I am quite sure it is a 1980 model.

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Yamaha RD400. The Model Guide
« Reply #8 on: April 07, 2008, 10:47:48 PM »
I also have an RD400 here in Australia that appears to be a Daytona Special with a 5/79 stamped on the compliance plate eng/frame 3M4-000599 according to the chart on speedandsportinc it is a 1980 RD400G not F I have the original rego papers stating it was 1st regestered october 1979. Mine has not been regestered since 1983 and has 6760km on the clock. I went for a short ride around the block on the weekend 1st time the bike has been ridden in 25years and with fresh fuel stars 1st kick and performs beyond my expectations.

Offline Alan "Shandyboy"

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Yamaha RD400. The Model Guide
« Reply #9 on: July 16, 2008, 04:44:49 PM »
Hi newby here I have a D model according to the frame/engine numbers.It has no point to mount a second disc is that the right front wheel for this model and the graphics are the same as the yellow e model above is that correct for the bike or should it be like the first blue bike above ? My bikes a 1978 on a T reg

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Offline [Chippy]

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Yamaha RD400. The Model Guide
« Reply #10 on: July 25, 2008, 07:34:18 AM »
Hey Stubbsy your would have to be an F mate ive got a few manuals and the G models start a bit higher if its got a red stripe on the tank its an F to be a G model itd have to look like this 250 Aussie 1980 model RD250G http://www.aircooledrdclub.co.uk/forum/forum_posts.asp?TID=658&PN=2
 

Offline YamaHead

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Yamaha RD400. The Model Guide
« Reply #11 on: September 30, 2008, 02:33:26 PM »
From what I remember.....seems like the 1980 models were more prominent in Australia?



So glad that a proper Resto Man bought my Daytona



But I sure do miss it @ times
« Last Edit: December 19, 2014, 03:06:19 PM by Paul Dawkins »

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Offline David Isherwood

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Yamaha RD400. The Model Guide
« Reply #12 on: October 23, 2008, 04:51:29 PM »
Am I right in thinking that the RD400G was replaced with the RD350LC in Canada much earlier than in the US?

Also did Canada get the LC at the same time as europe?
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Offline YamaHead

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Yamaha RD400. The Model Guide
« Reply #13 on: October 29, 2008, 05:23:24 PM »
The last 400 we saw here was the Daytona Special 400F in "79.

I believe the LC was offered in Canada starting in "81....

But we didn"t see anything else RD related, till "84-"85 with the RZ350.



We"ve always ended up getting the short end of the stick!
« Last Edit: December 19, 2014, 03:06:46 PM by Paul Dawkins »

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Offline David Isherwood

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Yamaha RD400. The Model Guide
« Reply #14 on: November 04, 2008, 02:30:27 PM »
Didn"t the poor old Yanks have to wait until "84 to get a LC/RZ?
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