Hi. i reecently purchased a ybr 125 that i thought to be very good, i ran it in doing 300 mile at under 5000 rpm like i got told, after this i wanted to take it upto is top speed and it would only go about 70-75 at a push, i was wundering if any 1 new how to makeit go faste any information would begreat thanx

Hi. i reecently purchased a ybr 125 that i thought to be very good, i ran it in doing 300 mile at under 5000 rpm like i got told, after this i wanted to take it upto is top speed and it would only go about 70-75 at a push, i was wundering if any 1 new how to makeit go faste any information would begreat thanx

If you are getting 70-75 out of a 4 stroke 125 be happy with it cos its a good one. 60-65 is more common.

And tuning, save the cash for riding kit.