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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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Old 2 Sep 2010
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34L, 1VJ, 3AJ, 43F What does it all mean?

I'm trying to figure out what my designation is (86 TT600), and figure out what the other designations are for when I look to upgrade the oil pump, etc.

What are the break downs between models?

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Old 3 Sep 2010
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Hello Pistolpete,

I'll take a crack at it but my knowledge is limited. Hopefully others with more detailed info can pipe up as well.

All the model #'s you have listed above are designations for various XT600/Tenere models in europe.

34L is the original xt600 Tenere bike with the huge 30L tank. mechanically very similar to the 1984-89(43F) xt offered here in N. america.

1VJ and 3AJ tenere models are later in the production cycles and have various changes that are either upgrades or downgrades based on the speaker's point of view. Don't know much about these as they were never offered here and I've never seen one in the flesh.

43F is the original xt 600 (1984-1989) like we have here in CAN/USA, offered in red/white paint. Distinctive characteristics are 18" rear wheel with drum brake, small (10L) gas tank, separate oil tank at left rear subframe, kickstart only. This is the model I have(1986 xt600 canadian machine). Cavet: I believe in 1988-1989 years the motor changed somewhat (barrel/head design changed slightly) possiably other changes?????

xt600E in n. america 1990-95 typically blue in colour with grey frame, 17" rear wheel with disk, lowered suspension, electric start, crome steel wheels vs. aluminum on the early generation. Oil resivoir is now in the frame's headstock.(funky early 90's pink and sometimes aquamarine green graphics) How this machine meshes up with the mechanicals of the IVJ-3AJ ect. of the european bikes is unknown to me.......

N.am TT bikes are said to have A nickisil coated barrel vs. the steel liner(confirmed) on my XT????

I really don't know what the european designation is for a basic TT600 like your's????? Perhaps some one else knows.

I have changed the oil pump on my machine and have documented the processs here in postings. I would be reluctant to recommend you do the changes I went with because I just don't know if there are any differences that might pose a problem on your TT. My gut feeling is the bits required are exactly the same but......I just can't say that with certainty. I found it very difficult to track down correct info about this swap. The info is out there but is spotty and incomplete. Some members were very helpful in steering me in the right direction. My pump has been in for a while and dooing it's job well.

There is one fellow I know who can confirm the model designation of your machine and sell you exactly the correct bits to do the oil pump swap.
Dave Lambeth in the UK. I've bought stuff from him before and suprisingly the parts are not much more $$$ than buying them here. In speaking with Dave you will likely learn quite a bit about you're machine He is a Yamaha XT/TT guru.

I hope some of this is of help to you! Should be clear as mud!

good luck,

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Old 3 Sep 2010
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Here you have good review of Tenere models, this will remove ??? from above your head
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Old 3 Sep 2010
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34L actually is the first model of the XT600, not necessarily a tenere, but the first model year. each series of letter/number combos denotes the model year or generation of bike, and is stamped in the VIN number on the frame, as well as the upper left corner of the cylinder block. my 84's cylinder block says 34L on there.
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Old 6 Sep 2010
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Sounds good
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Old 16 Sep 2010
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The first generation was the 34L (here's a pair i own) first of the Tenere's.

The second generation is the 1VJ (on the shopping list) also a Tenere version.

This is for sale on ebay Germany right now, here. (if your a wealthy man).

And the third generation is the 3AJ (my current project) another Tenere.

They are are all XT600's underneath, i just like huge desert tanks.

34L (1983 to 1985)
1VJ (1986 to 1987)
3AJ (1988 to 1991)

And the tenth letter on you chasis/frame number is the year of manufacture (on any motorcycle).

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Old 28 Feb 2011
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Yamaha TT 600 1st. Edition from 1983 -1991 (in europe some bikes were sold till 1993)
1. 36A till 1986 No disc break
2. 59X till 1991 disk break with one caliper
3. 3SW till 1993 disk break double caliper and engine plate in alloy
see here: Stammbaum TT600

after that the TT 600 takes the new engine and takes no longer the hard touch that the first ones had. The complete suspension was much softer.

Regards Chris
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