125 hours

Dcross829
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Dcross829
Edited Date/Time 8/20/2018 2:08am
How many hours are you getting out of your 125 before a rebuild?
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CarlinoJoeVideo
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CarlinoJoeVideo 8/19/2018 7:03am
8/19/2018 7:03am
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.
Rickyisms 8/19/2018 7:08am
8/19/2018 7:08am
I'm doing 10-15 on my 16 125s and 150s. That's dads choice not mine.
Dcross829
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Dcross829 8/19/2018 7:41am
8/19/2018 7:41am
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...
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.
theycallmeebryan 8/19/2018 9:34am
8/19/2018 9:34am
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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CarlinoJoeVideo
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CarlinoJoeVideo 8/19/2018 4:07pm
8/19/2018 4:07pm
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...
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).
CarlinoJoeVideo
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CarlinoJoeVideo 8/19/2018 4:56pm
8/19/2018 4:56pm
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.


Jrewing
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Jrewing 8/20/2018 2:07am
8/20/2018 2:07am
Good air filter maintenance is very important and warming up correctly
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