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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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  #1  
Old 14 Aug 2010
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XT 660 R with Xt 600 E engine

Anybody who has done any serious miles on an XT600E will understand why I want to do this .
I have an 08 XT660R which has vast improvements over the older XT600E except for the high tec fuel injected engine , it is very quick but its no good for what I want it for .
Can anyone tell me if I can retro fit an XT600E engine into the frame ,Im not concerned with any of the electrical issues or fuelling .
I have read in another post about someone fitting an XT660R engine into an XT600 frame but I just need some confirmation before I take the plunge and purchase an engine .
By the way if anybody is interested there will be a low mileage XT660R engine available at some stage .
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Old 14 Aug 2010
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Out of interest, may I ask what you don't like about the 660R engine ???
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  #3  
Old 14 Aug 2010
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Quote:
Originally Posted by *Touring Ted* View Post
Out of interest, may I ask what you don't like about the 660R engine ???

Im planning a RTW trip and my only issue ragarding the 660R engine is that if I were to have dirty fuel poured into the tank and a few miles down the road the bikes stops because of this then Im stuffed .
The 600E conversion would allow a better chance of repairing and cleaning out the fuel system and to carry on my journey .
Technology has its place but not hundreds of miles from nowhere !
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Old 14 Aug 2010
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Quote:
Originally Posted by kiraboo View Post
Im planning a RTW trip and my only issue ragarding the 660R engine is that if I were to have dirty fuel poured into the tank and a few miles down the road the bikes stops because of this then Im stuffed .
The 600E conversion would allow a better chance of repairing and cleaning out the fuel system and to carry on my journey .
Technology has its place but not hundreds of miles from nowhere !
I really dont think you will have a problem with fuel... hundreds are using FI bikes all around the world. Why not just use a filter bag in your fuel spout or an inline filter in the pipework. ???

By all means, if you want to do it, then have a go but it would be far cheaper, easier and stress free to just buy an XT600E in the first place.

So why not swap for an XT600E ??

P.S. carb bikes still have problems with dirty fuel. It's often easy to clean debris out of a filter on an FI bike than stripping a carb !!
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  #5  
Old 14 Aug 2010
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Quote:
Originally Posted by *Touring Ted* View Post
I really dont think you will have a problem with fuel... hundreds are using FI bikes all around the world. Why not just use a filter bag in your fuel spout or an inline filter in the pipework. ???

By all means, if you want to do it, then have a go but it would be far cheaper, easier and stress free to just buy an XT600E in the first place.

So why not swap for an XT600E ??

P.S. carb bikes still have problems with dirty fuel. It's often easy to clean debris out of a filter on an FI bike than stripping a carb !!

I used an XT600E three years ago whilst touring South America and apart from one puncture not one problem .
The XT660R I have now has been loaded up with all sorts of goodies including luggage ,so I would rather change the engine than the bike .
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Old 14 Aug 2010
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Quote:
Originally Posted by kiraboo View Post
I used an XT600E three years ago whilst touring South America and apart from one puncture not one problem .
The XT660R I have now has been loaded up with all sorts of goodies including luggage ,so I would rather change the engine than the bike .
Fair enough....
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  #7  
Old 14 Aug 2010
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Why don't you just buy XT660Z Tenere in good shape, because swaping engine sounds little unreasonable to me.
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  #8  
Old 14 Aug 2010
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I think you're worrying about nothing - I'd take the XT660R and not worry about the FI; if you are really worried about it fit a filter and take spare fuel pump and injectors which should be cheap enough from a scrappie. Even the pumps ain't a big deal to source in Africa, so I am led to believe by a thread on Advrider (F658GS)....
Or just buy an XT600 as others have suggested.
One thing I would not personally do is swap the engines....but you pays your money etc etc - good luck.
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Old 15 Aug 2010
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Engine may or may not swap easy, electrics could be another matter....
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  #10  
Old 15 Aug 2010
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Talking

I vote for using an R80GS engine. Just as fun to mount in the frame, twice as many nice simple bits of rubber to swell up and cover your boots in petrol before you can just swap them out and you get to combine the two bikes with the best reputations so your head has to happy with it

Seriously, this is going to involve home made major parts. Three ideas:

1. Take the XT600E you know.
2. Learn about the FI.
3. Start learning enough Swahili/Urdu/French etc. to ask things like "Is there a fab shop that can straighten a gearbox output shaft and weld this engine mount".

Ooh, I know, how about a 1974 Triumph Twin motor? Worked for Ted Simon and you never have to change the oil if you get the right one, just keep pouring it in the top

Good Luck & Enjoy your trip whatever you choose. Personally I'd just take the XT660.

Andy
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  #11  
Old 15 Aug 2010
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I think swapping the motors is probably a bad idea, considering what you are planning on doing with the bike afterwards. If your main concern is reliability, then I'd suggest an amatuer engine transplant is about the worst thing you could do. One slightly mis aligned engine mount, one slightly dodgy electrical connection. These things may be fine for thousands of miles, but if they fail in the wrong place then it is is going to be very inconvenient.

Also, fitting a second hand motor is a big gamble. Can you guarantee its been looked after? Wihout pulling it apart theres no way of knowing.I know they are tough as old boots, its still a big variable to chuck into the equation. If you were commuting on it thats one thing, but RTW in another matter all together.
Generally I work on the principle that if it can go wrong it probably will at some time, so take all necessary steps to prevent it. Take the 660, you've got it how you want it, learn how to fix the FI before you go, fit an inline filter, and take a spare, filter the fuel you put in it if you're worried.

Just my opinion. Whatever you decide, good luck and have a blast!!!!
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  #12  
Old 9 May 2011
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Ive had 11 XT 660`s,, 5 R`s ab 6 X`s.. all in all id say they are powerful hardy engines,, the last xt a had i bought from a guy who done a RTW trip on it,, it had 8k miles when he bought it,,, an when i bought it from him..it didnt go anyt better than a new oine,, an ive had 6 new ones... oh an anearly forgot it had 47000miles on it... an ran liek a sweetie,,,well nearly , as the TPS was shot when i got it fae hime,, it still ran but ran wi all they hiccups that the FI`s in the xt range have,, but thisone was really bad. i sourced a second hand TPS,, throttle position sensor,, an the bike ran liek a sweetie........... great bikes. but too much COULD go wrong wi that fuelling an injection system.. if something went wrong miles fae nowhere, an nae coputer..yer up the swannee..as ye dont need a mechanic,, ye need a puter whiz kid. id go wi a carb version xt600..so much simplier.. am not mechy minded,, but ad have a good shot at strippin an rebuilding a carb....a wis around teh doors playin on all ma xts,, done serious miles wi them,, an wheelied them tae know end...........they are very HARDY,, but ad be in two minds about a RTW trip[ on them,, IMHP.. but thats jist MY thoughts..... once a went tae the North o Scotland on mine,, a did many times but this sime,, i did 55 all the way fur 150 miles,, then refilled. i returned 73 taerthe gallon.........lasty week a followed teh 6 days trial in an around fort willy... includin ma trip up there.. never went above 55/60..... i got 65 tae teh gallon on ma xt600.02 model,cant complain about that.........
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XT 660 R with Xt 600 E engine-copy-2-dscf1623-large-.jpg  

XT 660 R with Xt 600 E engine-copy-2-dscf1675-large-.jpg  

XT 660 R with Xt 600 E engine-copy-2-dscf1679-large-.jpg  

XT 660 R with Xt 600 E engine-copy-2-dscf1677-large-.jpg  

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  #13  
Old 10 May 2011
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That's a HUGE undertaking you have set yourself (in terms of skills needed and the likely costs involved). Make sure the contraption you design is safe to ride (you are sticking your fingers up to Yamaha R&D department lol). First time I have ever heard of this being done (with a XT6E and XT660 that is).

I think you will be hard pressed finding ANYONE who will slag off either bike (XT600 or XT660). Although the newer XT660 isn't quite a RTW/Trans-Africa legend like the venerable XT600 is (alongside BMW Boxers), it's certainly proving to be a future contender for this highly sought after title.

Personally I prefer the simpler XT600E over a more modern XT660 but that's because I own two XT6's.

Not many bikes can boast the bulletproof reliablilty of XT's whatever version. It's a great pity the stop button was hit in 2003 by Yamaha manufacturing the XT600E. I'm sure the XT660 could be marketed alongside it sucessfully. It was that pointless and expensive E.U beast that proved it's undoing - the beauracrats in the European parliament decided the XT600E wasn't green enough for modern engines. Pity they didn't listen to us riders eh?

Getting back to the point of this thread - why not just buy a low milage mint low milage XT600 instead or perhaps a new(er) XT660? I can't see why you would want to mess with either bike to the extent you propose here. The changes you are proposing will cost more than buying a new bike! Add to that the fact you will be messing about with a tested and proven design.. lol

Whatever you decide I wish you well.

Bama3 - Love those XT6E pics. What lovely scenery too...
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Last edited by kentfallen; 10 May 2011 at 17:59.
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  #14  
Old 14 May 2011
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while i understand your reasons (i have xt600e) i gotta agree with most of the posts above, if yamaha can throw tons of cash in to the r&d of a machine, then your average joe with a limited budget can't usually improve on that........an argument im always having with friends who buy sportsbikes, they feel the first thing they need to do is fit a race exhaust & other go faster kit, never occurs to them that most riders skills don't exceed the capabilities of the most basic stock machines.
back on topic: i'd take the 660 rtw, if its kitted out how you like it & its a worldwide current machine so parts shouldn't be a problem.
too many variables increasing the risk factors, rtw trips for most are once in a lifetime achievements (& thats if your lucky), if it all went tits up you've got a long time to regret the choices you made.
whatever you decide, good luck & ride safe
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  #15  
Old 11 Jun 2011
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Thought of just junkng the FI and putting a Carb on it?, it's got to be easier than swopping the motor.
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