How To Change Gear Oil On A Two Stroke KTM Husqvarna 300/250 xc/xcw/te | Transmission Oil Change

[@joshreid1950]

I added .8 l to my tc 250 and the oil fill bolt was weeping quite a bit will too much oil do damage

[@ExtremeSportsWannaBes]

No it should be fine. Better to have a little too much than not enough. There’s no oil pump. If there really is too much It’ll just come out the case vent.

[@eric89q]

Hey often to change the oil, manual says after first 5 hrs then every 40, seems high?

[@ExtremeSportsWannaBes]

For a two stroke that’s about right. You’re not getting the carbon from the cylinder in the oil because the cylinder is lubricated by the oil in the gas. The gear oil only lubricates the transmission gears and the clutch. I’d stick to the manual hour recommendation.

[@m.bowden1131]

So gear oil and transmission oil is the same?

[@ExtremeSportsWannaBes]

All oil is measured by viscosity. Real gear oil is usually pretty thick. In most motorcycles (though not all) there is just one place to add oil and it covers the transmission and engine together. But remember that with two strokes, the upper engine is lubricated by the oil you pre mix into the gasoline.

[@chrisshand8330]

Does anyone run Silkolene Light Gear Oil in there 2T’s? Or am I better using 10w40 Lucas Engine Oil??

[@ExtremeSportsWannaBes]

I've run truck oil in my old XR with a combined gearbox and piston. But that was because they had some play and needed more protection. I wouldn't dream of putting anything short of recommended (or better) oil in any performance bike. You'll get rough shifting, trouble finding neutral, clutch slip (or drag), and accelerated wear out if you try. Performance bikes are notably better on quality, properly formulated oil. It's worth the money.

[@a.kq8984]

Im using 10w/40 for my ktm 300 tpi bike in winter

[@ExtremeSportsWannaBes]

How do you like it?

[@a.kq8984]

@@ExtremeSportsWannaBes i think the 15w/50 is better

[@chrisshand8330]

Haven’t had a change to ride it yet but when I do I’ll let you know if I need to go for something thicker

[@apostate4apostate494]

Your oil should say “Motorex TOP SPEED 4T”. Seems like your using the wrong oil!

[@ExtremeSportsWannaBes]

This is the oil they always give me at the parts shop. It’s just regular Motorex 4T gear oil. It’s never given me any issues. The clutch works fine and there’s not more metal mud on the magnetic plug than usual.

[@apostate4apostate494]

@@ExtremeSportsWannaBes make sure it’s the recommended 15w/50 - should say “top speed 4T”. Yours is a different product. As long as it’s the 15w/50 though should be ok I assume

[@ExtremeSportsWannaBes]

Ya that’s the stuff. It’s 15w-50 synthetic. I’m sure they have higher performance oils that you can use. I’m guessing the “top speed” is probably just a better oil. This is just the baseline stuff.