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Out of curiosity, how do you guys flush out your gear box oil?

Quite a random thing to bring up, but I've always been flushing out old oil with cheap oil, then replacing the cheap oil with the oil I actually want to use.

I've read about people using ATF, what is that?
 
Out of curiosity, how do you guys flush out your gear box oil?

Quite a random thing to bring up, but I've always been flushing out old oil with cheap oil, then replacing the cheap oil with the oil I actually want to use.

I've read about people using ATF, what is that?
ATF is likely referring to Automatic Transmission Fluid.

Basically a type of oil anyway.

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ATF is likely referring to Automatic Transmission Fluid.

Basically a type of oil anyway.

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Thought so, my one mate does his with diesel, heard a lot of bad things like silicone and bearing grease being removed.

But will just carry on doing what I am doing. Just not fond of putting in oil, riding the bike for 5 minutes then dumping it out and replacing with new oil.. Just doesn't feel right. ;)
 
I've heard of guys using auto gearbox oil because it's thinner, which leads to easier shifting, especially when it's cold.
Personally I think it's a terrible idea to put any oil viscosity in any part of your bike other than the manufacturer's recommended spec.

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I've heard of guys using auto gearbox oil because it's thinner, which leads to easier shifting, especially when it's cold.
Personally I think it's a terrible idea to put any oil viscosity in any part of your bike other than the manufacturer's recommended spec.

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Fair enough, I'm not talking about actually taking the bike on a proper ride to do the actual flush. A 2-stroke gear box can technically ride without any oil, granted it won't last long and if you rev it too hard it will definitely break. All I do is put in shitty 2 stroke gear box oil, ride it around the block at low revs just to churn everything up in the engine, dump it out and replace with proper 2 stroke gear box oil.
 
Fair enough, I'm not talking about actually taking the bike on a proper ride to do the actual flush. A 2-stroke gear box can technically ride without any oil, granted it won't last long and if you rev it too hard it will definitely break. All I do is put in shitty 2 stroke gear box oil, ride it around the block at low revs just to churn everything up in the engine, dump it out and replace with proper 2 stroke gear box oil.
Ok so then ATF makes sense; the thinner oil drains faster and has more of a rinsing effect.

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Ok so then ATF makes sense; the thinner oil drains faster and has more of a rinsing effect.

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I went onto quite a few forums today and ATF popped up quite a lot. For the average Joe I don't think there is a right way, as for sponsored riders I'd assume that they flush their old oil out with proper oil.
 
I've heard of guys using auto gearbox oil because it's thinner, which leads to easier shifting, especially when it's cold.
Personally I think it's a terrible idea to put any oil viscosity in any part of your bike other than the manufacturer's recommended spec.

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ATF for an engine? That doesn't have the detergents and other additives so wouldn't make sense. They would be better off just checking the manual for the recommended cold-weather oil.

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Funny thing is, manual says after 20 hours you should replace your gear box oil. I've done around 20 hours now, maybe a bit more and my gear box oil is still pink and has no burnt smell. I don't ride my bike hard but definitely don't do smooth single track all day.
 
Funny thing is, manual says after 20 hours you should replace your gear box oil. I've done around 20 hours now, maybe a bit more and my gear box oil is still pink and has no burnt smell. I don't ride my bike hard but definitely don't do smooth single track all day.

Take what the manual for a dirt bike says with a pinch of salt,its generally referring to a bike that is used in competitively, So 20 hours of Racing is very different to 20 hours of a trail ride, on a non competitive 2 stroke bike its only necessary to change the gearbox oil once or twice a year.

As for using ATF I have been using it in all my bikes since I started riding without any hassles.
Why is ATF good to use? Because it has the necessary lubrication attributes for the gears as well as the wet clutch to bite and work correctly.
 
Take what the manual for a dirt bike says with a pinch of salt,its generally referring to a bike that is used in competitively, So 20 hours of Racing is very different to 20 hours of a trail ride, on a non competitive 2 stroke bike its only necessary to change the gearbox oil once or twice a year.

As for using ATF I have been using it in all my bikes since I started riding without any hassles.
Why is ATF good to use? Because it has the necessary lubrication attributes for the gears as well as the wet clutch to bite and work correctly.

Wouldn't you get similar results with SAE 0W-30 though? It's also quite thin, though thicker than ATF, but it can better handle the handle engine combustion.

Or isn't the gearbox/clutch sitting in the same oil as the engine?
 
Wouldn't you get similar results with SAE 0W-30 though? It's also quite thin, though thicker than ATF, but it can better handle the handle engine combustion.

Or isn't the gearbox/clutch sitting in the same oil as the engine?

On a 2stroke they are sperate compartments.
 
Interesting thread

What was your first bike? - Yamaha XT660R

What is your current bike? - BMW K1300GT and BMW R1200S

What bike(S) would you buy IF MONEY is NO OBJECT?

Road bike/daily - K1300R (VERY underrated and Insane Street fighter) /Ducati Diavel (unusual)
Track Bike - 2016 R1, with aftermarket Ohlins TTX GP suspension, and Exhaust.
Dirt bike - Dont really ride full dirt.
Adventure/Dirt Tourer(more gravel roads) - Yamaha XT1200 Tenere, dont need all that power and super Ten is build like a tank.

Just because i want one - Kawasaki H2R!
 
Funny thing is, manual says after 20 hours you should replace your gear box oil. I've done around 20 hours now, maybe a bit more and my gear box oil is still pink and has no burnt smell. I don't ride my bike hard but definitely don't do smooth single track all day.

Normally do just the first one at the given hours due to the engine being new and all the gears meshing together all my offroads thus far have had a bit more metal on the first oil change
 
Take what the manual for a dirt bike says with a pinch of salt,its generally referring to a bike that is used in competitively, So 20 hours of Racing is very different to 20 hours of a trail ride, on a non competitive 2 stroke bike its only necessary to change the gearbox oil once or twice a year.

As for using ATF I have been using it in all my bikes since I started riding without any hassles.
Why is ATF good to use? Because it has the necessary lubrication attributes for the gears as well as the wet clutch to bite and work correctly.

That is with 3 races on the engine. Granted they don't take up the full 20 hours, they do take up a fair portion of it.
 
When I say competitive I mean motocross or the likes of Chris Birch.
There is nothing wrong with changing your gearbox oil every 20 hours

George S Does make a good and valid point
 
When I say competitive I mean motocross or the likes of Chris Birch.
There is nothing wrong with changing your gearbox oil every 20 hours

George S Does make a good and valid point

Yea agreed, was just very surprised. I will be changing it anyways. The other guys that I have been riding with, their oil is already black and they changed there's after I did mine.
 
Btw if you guys ever find yourselves down this side of the country with your bikes feel free to look me up, So many good places to ride here, we have the entire Transkei
 
And that's a good thing? Lol

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lol.. Funny thing. I went riding with my dad from Knysna through Namibia, Botswana, Zim and Mozam. As dodgy as the Transkei roads are with animals all over the place and the occasional asshole throwing stones, they definitely have the nicest roads to ride on.
 
[MENTION=37359]Poundfoolish[/MENTION]
[MENTION=27496]DeaJaeVoo[/MENTION]

Not sure if you guys will be able to tell me or not, but do you by any chance know the rough value I could get for my bike? (2nd hand sale)

It's a 2016 KTM 250 XC-W bought in December last year, first ridden in January this year. The bike has about 65 hours on the clock. Cycra handle guards, full Hyde bash plate, front and rear brake disc guards, radiator braces, added ktm fan.
 
[MENTION=37359]Poundfoolish[/MENTION]
[MENTION=27496]DeaJaeVoo[/MENTION]

Not sure if you guys will be able to tell me or not, but do you by any chance know the rough value I could get for my bike? (2nd hand sale)

It's a 2016 KTM 250 XC-W bought in December last year, first ridden in January this year. The bike has about 65 hours on the clock. Cycra handle guards, full Hyde bash plate, front and rear brake disc guards, radiator braces, added ktm fan.

Check on the wild dogz forum and should sell quicj
 
[MENTION=37359]Poundfoolish[/MENTION]
[MENTION=27496]DeaJaeVoo[/MENTION]

Not sure if you guys will be able to tell me or not, but do you by any chance know the rough value I could get for my bike? (2nd hand sale)

It's a 2016 KTM 250 XC-W bought in December last year, first ridden in January this year. The bike has about 65 hours on the clock. Cycra handle guards, full Hyde bash plate, front and rear brake disc guards, radiator braces, added ktm fan.
If Gumtree is anything to go by I reckon you're looking at around R75k, maybe a little more if it's in good shape.

+1 to the Wild Dogs forum suggestion.

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