125 hours

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8/19/2018 5:12 AM

How many hours are you getting out of your 125 before a rebuild?

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8/19/2018 7:03 AM

On my 16 KTM 125 I’ve been changing at 20-25 and the piston still has a good amount of coating left on it.

It’s pretty easy and cheap to swap them so I think 25 is safe. My bottom end was rebuilt at 90 hours.

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8/19/2018 7:08 AM

I'm doing 10-15 on my 16 125s and 150s. That's dads choice not mine.

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Unleaded tastes a little tangy. Supreme is kinda sour, and diesel tastes pretty good.

8/19/2018 7:41 AM

CarlinoJoeVideo wrote:

On my 16 KTM 125 I’ve been changing at 20-25 and the piston still has a good amount of coating left on it.

It’s pretty easy and cheap to swap them so I think 25 is safe. My bottom end was rebuilt at 90 hours.

Are you riding tracks? I ride mine pretty hard I’ll be happy to get 20hrs out of it.

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8/19/2018 9:34 AM

All motocross hours (screaming the piss out of it), 15-20 hours between top ends. Clutch fibers ever 30 hours or less if it starts slipping.

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8/19/2018 4:07 PM

CarlinoJoeVideo wrote:

On my 16 KTM 125 I’ve been changing at 20-25 and the piston still has a good amount of coating left on it.

It’s pretty easy and cheap to swap them so I think 25 is safe. My bottom end was rebuilt at 90 hours.

Dcross829 wrote:

Are you riding tracks? I ride mine pretty hard I’ll be happy to get 20hrs out of it.

Yes, riding tracks. Jetting and squish are on the safe side. Maybe too safe? I’m running 50/50 91 pump gas and C12. She feels like a raped ape!

The KTM guys said they have seen stock pistons go easy 40 hours. (Not that I’d do that, but they have done it).

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8/19/2018 4:56 PM

These all have about 20 hours on them. I just rebuilt my engine from the bottom up and have 10 hours on her. I’ll check the compression at 20 again and see how she’s doing.
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8/20/2018 2:07 AM

Good air filter maintenance is very important and warming up correctly

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