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Dirt bike used in trails

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Would I damage the engine on a yz 125 2 stroke if used in trail/ woods riding instead of track?

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You wouldn't hurt it, but IMO it would be a PITA having to keep the revs up for any power.

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You wouldn't hurt it, but IMO it would be a PITA having to keep the revs up for any power.

But certainly fun and you'll get good go pro footage!

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There are plenty of people that ride small bore bikes in the woods.

My son's next bike will be a 125 or 150, for the woods.

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Perfect to know, some one told me once that because the engine wasn't designed for it, it would harm it. But i guess thats not the case.

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You'll probably need to do a bit of rejetting for woods though. If it's jetted on the rich side for track usage, it could easily become a plug fouler when you go to lugging it more. Another item that will help you in the woods is a flywheel weight. Won't be as snappy, but will lug down a bit better which will make it somewhat easier to deal with when the trails get tight and steep.

Edited by OLHILLBILLY

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The short answer...it will be fine.

Your friends not crazy, though. Theres some truth behind what he says.

Even a great running 2 stroke inevitably builds up some unburnt fuel when operating at low rpm...such as tight woods riding.

Putting around at low RPM with poor jetting can foul the occasional plug.

Many riders dont know what jetting is or how to adjust it.

To complicate matters, many times the "woods" are cold and/or high elevations.

The bottom line is that a 125 two stroke will work great in the woods as long as its jetted correctly and not run at extreme low rpm the entire time.

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The question should be "will a 4 stroke work ok in the woods" 😉

 

You'll do fine on the 125.

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