News from Morocco
 

Greetings Teneristas, MHO and a few nice pix here:
http://www.adventure-motorcycling.com/xtz/report

More later.

Ch

Excellent review there Chris.

One thing to point out though about the fuel;

I too thought that every once in a while, you would put leaded fuel in the bike. All African nations have signed an enviromental agreement of sorts (quite a few years ago) to only use un-leaded petrol. But when you fill up at the more rural areas, you will mostly have only two pumps to choose from. One with diesel and one with petrol. The petrol pump will no doubt say "essence" or maybe even "regular essence" but the pump is likely pumping out un-leaded fuel. But the pump-keeper is none the wiser. He's just pumping petrol like he's been doing for the past 20 years, totally oblivious to the fact that fuel requirements have changed.

When I went through Morocco, I changed my catalyst cans for catalyst-free ones, in anticipation of only leaded fuel being available. I could have saved myself the trouble as well as the money. Unleaded fuel is all you can get in Africa (unless it's specially fuel for racing and such), but the locals are usually unaware of this fact.

Btw...I have the XTR that is a little worn around the edges now. Your review only entrenches my belief that the XTZ will be my next bike. Good work man.

Great report, lots of very useful information and great pics: mucho thanx!!! Man, this is the way to go. You made my decision to change from Metzeler Tourances to TKC80's easier, you convinced me. What was the exact tyre pressure you run on/offroad, what gave the best handling? How about the chain slack, don't you found it hard to check the right slack(maybe some tips/advice on this?)? Me too gave the suspension some more clicks, because of my weight and the weight of the panniers and luggage; maybe I'll convert front&back with progressive springs(had some good experience with Hyperpro on my former bike, a XT600E). Once again, thanx a lot, greetz, Hans.

nice report chris.

if you intend doing another trip across the Sahara and have room for someone to tag along, !!!!!!!!!!.

:what:

Regards

Dazzer

Great report Chris glad to see you over here at xt660.com
Will the Ten be mentioned in the new book ?

It does make me wonder why Yamaha made the bike so tall ?

They could have gone for a flat seat, like the offtheroad Rallye xt660r

about fuel
 

Hi McThor,

yes I read your note on African fuel somewhere else here, but I must say I am sceptical. I think African nations would have signed anything to guarantee continued aid or grants or goodwill - but as to them actually implementing anything as radical as continent-wide UNL - I find that very hard to believe when you think of all the other extreme problems there - among which the environment is not a high priority.

IMO there is no more chance of UNL-only in Africa than low sulphur diesel (the environmentally acceptable diesel equivalent) which we get here for our nice new cars but which has the same bad effect on older engines' injection pumps as running UNL in an XT500 does on its valves. Both types of fuel are, I imagine, more expensive to produce (they certainly cost more) and work best on modern vehicles. And back country Africa relies on old, knackered vehicles.

Sure you get UNL is the more populated and affluent north of Morocco and Algeria and maybe Libya (areas I know) - but in rural areas or the south it will be 2 star leaded which is red like ribena. UNL is yellowy. Got pix of both being poured into bikes in Mk but can't post them.

So I think you did save your cat pipes. I guess an expensive test would be to run cat pipes on what is not claimed to be UNL (but may be) for a while and see if they survive an emissions test back home.

It's an important issue you raise as many are worried about running leaded fuel out on the world with modern efi bikes.

My XTZ's manual certainly freaked me out about this, but asking around proved it was just the usual corporate 'arse covering' waffle, like the 'check every function of your bike before you ride anywhere' advice.

Anyway, we hear of pre-XTZ 660s doing a quarter million kms RTW (is that you, maybe?) so they can hack it.

Sure, crap fuel may contribute to premature engine wear (as I found on my 2nd Tenere in the mid-80s in the Sahara) but running leaded fuel merely coats a cat with lead and reduces it's emission-cleaning function AFAIK. It may not affect the engine mechanics so severely, though how an ECU reacts to such changes is a worry, and is why people remove lambda sensors, etc. (Have to say I am tip-toeing close to the edge of my EMS/mechanical knowledge here! ;-)

Hans, I ran about 2 in the back and 1.8 on the front. Hard for the dirt and did not give the best handling - but I was running experimental tubeless and did not want any more punctures! With tubes I would have run about 1.4 both ends but suspect the tyres may not have lasted as long as they have.

Yes I did get the chain slack wrong once until I remembered some advice from my own book: check the chain slack cold, like tyres, not hot at the end of the day when it gets slack.
The springs I suppose could be more compliant. I believe the front are 5 turns above zero and 20 below max - as standard. I never came close to bottoming either end (but I ride pretty slow).

Dazzer - not planning any bike trips there right now - the party is well and truly over in the Sahara for indi travels.

stuxtttr - Sure, half the book was researched on the Ten and I had a nice front cover mocked up too, but the publisher got cold feet as it's aimed at 4x4s, vans and MTBs too, so we settled on a non-commital cover.

I've not sat on an X or R 660 but I think part of the tallness (and high CoG) of the XTZ is down to the unseat pipes. Good thing is it's fairly easy to reverse.

afn

Ch

sad to think that that part of the world for the time being is out of bounds

Maybe Russia could offer me some remote riding...
as they say...one door closes.

Safe Riding

Dazzer

as they say...one door closes.

this is true. Russia and the Far East is where I'm off next.
It's just shame it's so far away... or maybe that's the point!

Ch

Nice report, i had to stop reading it half way through as you where temping me too much to buy a tenere!!

Great report Chris, Very much enjoyed it.
Can I be so bold as to ask why you decided to sell the bike. Is it out of disapointment of just that its no longer required???

Hey Chris S.

To doubt any implementation of international or even local agreements/treaties in Africa, is not only natural. It's propably also very wise :). Or at the very least, approach such matters with a healthy sceptisism.

However, take a look at this:

http://www.unep.org/pcfv/PDF/LeadReport-Brochure.pdf

This is a crop from that PDF file (you can read the entire report if you find yourself bored):

http://i351.photobucket.com/albums/q...africafuel.jpg




Bare in mind, that this is not estimated, assumed or "according to government spokesmen or beaurocrats" availability of unleaded fuel. It is what surveyors of the report have actually found to be the case on site.


As for the lambda probe you can easily determine if it will mess up your bike if/when it stops to function. Prior to my own trip I tried to disconnect the lambda (only the electrical wiring/plug. Not the actual lambda). It made little or no difference in fuelconsumption (the reason why it's there in the first place). In my brief and totally un-scientific test, it may (or may not) have diminished the kilometers per liter by 1 km. This "test" is subject to so many unknown factors that I regarded the function/dis-function of the lambda probe, negl....niglage.....not so important. As I've understood it, the Z and the R have basically the same engine. So I pressume a similar test can be conducted for the Z. On my R, the engine-error light didn't even come on.

As for the catalyst: I've heard theories that the filter (the catalyst is in fact a filter) can clog up due the unspent residue of leaded fuel. In theory, and I stress theory, the exhaust will eventualy be blocked and stop the bike completely. I have however never heard of anyone actually experiencing this. So let's leave that one to one side for the theorists, shall we. One of the less disastrous effects of burning leaded fuel in a catalyst can, is that because of the higher temperature at which the leaded fuel burns, the filter may simply melt away or become so damaged that it just stops to function. Meaning that it will allow emission of whatever it was supposed to stop in the first place. From an operational point of view this has little relevance. But if you are an enviromental buff, this is a no-no. And you may be fined (propably only in Europe) for failing to comply to EU standards.

I've ridden on some pretty rotten fuel. You know, the stuff you get from a roadside seller who sells his stuff in bottle of coke, and you have to filter it through a sock before it goes in the tank. Not once did the bike miss a step. Was it good for the bike? I highly doubt it. The implications of using fuel like this may only turn up at the end of the engines life, which may have been cut short by the fuel "abuse". Time will tell.



Torsten

Hi Torsten. Well, I am pleased to be wrong, I have learned something and will spread the news. It is interesting the the map shows Mk and Algeria and Tunisia as one of the few countries holding out. And of course Mongolia where I hear the petrol does not have 2 octanes to rub together. I'll have a look at the report

I've not got to the bottom of what cat converters are yet. I imagined they were some sort of device whose interior got very hot (thin fins?) and that's was how it simply burned off unwanted emissions.
I actually was told leaded burned cooler than UNL (and that UNL actually does have some lead in it, but not as much as leaded).

As it happens a Tenere of mine in 85 clogged up while coming back from Algeria. The engine would slowly choke up and wheeze to a halt, like fuel starvation, but with a hiss. Eventually it turned out a wire gauze tube which the exhaust gas had to pass through was all coated in oily rust, possibly as a result of Algeria 2 star? Three nail holes whacked in the end of the can got it breathing again. Maybe its a common fault with old Teneres.

... why you decided to sell the bike....?

To be honest Portmarco, I can't afford to own a 4k bike, well not for long. I wanted to try something modern with efi and all the rest and an XTZ turned up just in time.

Ch