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13 Jan 2017
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That's true and that has a consequence on the degrading and service interval of the oil depending on the volume of oil that they have. Burning it is not a consequence of that. It should be a sealed system. Well designed or built engines are better than worse ones off course. But that's not a factor here.
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14 Jan 2017
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Join Date: Dec 2012
Location: Back into the hamster wheel again, in Oslo - Norway. Did a 5 year RTW trip/250 k kms, 2014-2019
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Quote:
Originally Posted by tmotten
That's true and that has a consequence on the degrading and service interval of the oil depending on the volume of oil that they have. Burning it is not a consequence of that. It should be a sealed system. Well designed or built engines are better than worse ones off course. But that's not a factor here.
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Well Im not a mechanical expert but with worn pistonrings and/or ditto valveguides etc an engine will start using/burning oil - the way I have understood it at least. But I might be wrong....
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14 Jan 2017
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That's right. Has nothing to do with engine size though is my point
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14 Jan 2017
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Join Date: Oct 2010
Location: Krasnoyarsk, Russia
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It's not that small bikes burn more or less oil than bigger bikes. It's that smaller bikes have less oil to begin with. Whereas on a bike with 3L oil capacity can lose 500cc and still run fine, a bike that only carries 1L of oil could blow an engine if it loses 500cc. That's why I check the oil more frequently on a small bike. But really, whatever the bike, if you're on tour you should check it at least once a day.
On the positive side, a small oil capacity can be good in certain cases. Blew a clutch deep in the jungle. I had 700cc of spare oil. Replaced the clutch, changed the oil and kept going. Not easy to carry an entire oil change on a bigger bike, but with a small engine you can get away with it.
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14 Jan 2017
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Yup. I change it more frequent but it's really quick.
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16 Jan 2017
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I'm a bit green here so can anyone enlighten me on oil change intervals of bikes of this size... I read on the TTR forum that the TTR250 should have a change every 600miles.
...Is this accurate and true of all 250's?
...Would this not be a royal pain in the arse on a RTW?
Cheers 
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16 Jan 2017
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Quote:
Originally Posted by Danny Gauguin
I'm a bit green here so can anyone enlighten me on oil change intervals of bikes of this size... I read on the TTR forum that the TTR250 should have a change every 600miles.
...Is this accurate and true of all 250's?
...Would this not be a royal pain in the arse on a RTW?
Cheers |
As mentioned, oil capacity plays a big role here. 250's don't hold much, so more frequent changes in order. But some other factors at play:
If just cruising at moderate speed/rpm the oil will not be stressed as much, so longer interval may be possible.
If you could always have access to quality synthetic MC oil, this too could extend change interval. Going RTW, don't count on this.
Only So-So no name oil means YOU MUST do more frequent changes.
Many 250's will use some oil if ridden very hard, under load and kept at or near
redline. Otherwise, very little oil should be consumed by most of the bikes listed so far.
The TTR's are good tough bikes if you can find a "fresh" one that can do a full RTW and get it set up right. Old tech but a good one.
But for me .... first choice is WR250R. 2nd CRF250L. The WR has more power over CRF, better suspension too. Both reliable.
Those two things alone put WR250R 1st in my book.
Yes, more money but for all round riding (especially off road) Yamaha WR gets my vote.
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16 Jan 2017
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The Australian TTR manual suggests first oil change at 600 miles, then every 6000 miles thereafter. The US one says every 1000 miles. In the US they were sold as off-roaders only (although they could be road registered) which would suggest an expectation of hard dirt road use. Common sense would indicate that the owner should vary the interval depending on usage and quality of oil available, and I think this probably applies to all makes and sizes of bike.
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16 Jan 2017
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4 Jul 2019
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Quote:
Originally Posted by Danny Gauguin
I'm a bit green here so can anyone enlighten me on oil change intervals of bikes of this size... I read on the TTR forum that the TTR250 should have a change every 600miles.
...Is this accurate and true of all 250's?
...Would this not be a royal pain in the arse on a RTW?
Cheers |
From what my partner (who is an actual mechanic not an amateur) and I have been reading, if you are using what was originally designed as a race bike and change to using a good quality 10-40 Diesel Engine oil you can conceivably get longer service limits out of it.
We are rebuilding a KTM 450 and 525 EXC for our RTW trip. And this is the oil we have chosen to use. It's definitely going to and the bikes are going to get a workout in Australian conditions whilst we perfect them. And whilst they, especially my 525 had been hammered by previous owners by doing a total rebuild including valves, guides, the lot even trialling a 16T front and 42T rear sprocket to hear it down. They are light weight and even with gear will be manageable for us both to pick up and we are both short asses at 5'6" so have made custom seat bases with memory foam to lower, pulled the fork legs up higher in the triple clamps and softening the rear spring.
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4 Jul 2019
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"I certainly would look at the sorrow 250 its the TTR engine in a lower bike,"
Unfortunately not true. The DOHC 4 valve TTR250 engine is no longer in production, the XT250 Serow motor looks totally different to me, SOHC 2 valve. Not exactly going to be a fire breather...
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16 Jan 2017
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Engine oil change intervals is dependant by the engine characteristics (high performance or a tractor, etc) and the amount it carries. Oil degrades so the more you have in there the longer the change interval. That amount changes for every bike. The TTR was originally a race bike so they don't need to carry much oil. Dunno about the interval anymore. But if you're selecting a bike that would be a key parameter.
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21 Jun 2019
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Steph did it on a 250cc
Sometime back, well , at least a little while back , Steph Jeavons completed a four year RTW on Honda CRF250L. Rhonda the Honda I believe was the name given to the beauty herself.
Therefore in essence, this is the bike you need to travel RTW. Just ask Steph?
Sorry Steph, we have not met, so I apologise for using your name without permission.!!   
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2 Jul 2019
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I’m a huge fan of the TTR 250, mine does now leak oil and I need to re build the engine but once i’ve Done it, the bike will probably out last me!
Remember with the 20 year old trail bikes although bits are now worn they were built to last.
CRF250l must surely be the modern equivalent, as for the Rally version it looks good but many of the plastic parts break so why bother.
I certainly would look at the sorrow 250 its the TTR engine in a lower bike, seems to be more available and much newer direct from japan from some of the importers.
Over in South America you can get the tenere 250
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