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changing a race bike to a trail bike?

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hey i recently picked up the sweetest little 125 and it was always ran at races and is still in that condition,what is the best way to make it more trail/dinking around riding. as far as jetting or mix ratio and gearing your opinions count,thanks.:thumbsup:

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Well gearing wise you can go up a couple of teeth on your rear sprocket to give it some more low end. On my 125 that ran great on the track I would occasionally foul plugs on the tight trails due to not being able to open it up very often. I never really looked into it further since I had no issues at the track but maybe a hotter plug for the trail would have helped.

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thnks man,thats what i was thinking maybe go to a br8 instead of the 9.

DONT DO THAT!!! :thumbsup:

If you have a problem with fouling plugs, then it needs to be jetted leaner. By switching to a hotter plug, you could cause a nuclear meltdown of your engine.:thumbsup: Spend 10 minutes and switch out a jet instead.

Dont change your gas/oil mixture to cover it up either!

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DONT DO THAT!!! :thumbsup:

If you have a problem with fouling plugs, then it needs to be jetted leaner. By switching to a hotter plug, you could cause a nuclear meltdown of your engine.:thumbsup: Spend 10 minutes and switch out a jet instead.

Dont change your gas/oil mixture to cover it up either!

The '05/06+ YZ 125's started coming with a BR8 I'm pretty sure...

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at 32 years old 2 kids and a little over a year on a bike im not starting down the road of mx,just dont think it would pan out for me:cripple:

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I thought the flywheel weight wasn't necessary on a 125 and they were better for a 250? :thumbsup:

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I thought the flywheel weight wasn't necessary on a 125 and they were better for a 250? :thumbsup:

Idk i have just heard that they "tame" down the hit. But really to make a 125 a good trail bike it would be hard. I think:excuseme:

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It will be hard but I wouldnt put a FWW on a 125. You need to ride them on the pipe in order to make it through trails, so youll be above the hit.

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