hi i have crm 250-2 that i got it a week ago it has a vabrtion in front wheel can some body can help me out.

regards
Alan

when does it vibrate? meaning at what sort of speed? i would suggest checking the bearings for any play or possible sticking, if theres no play then a good greasing may help, i had a mk2 that did it when i tested it down a private lane ( as it was road legal) but it only did it towards the top speed but i found very little play in the bearings, i did replace them and grease the spindle but never used it on road only off so i cant tell you how much difference that made

Check bearings as John says.

Also -

Check tyre is correctly seated on rim.

Check for buckling of the rim.

Some heavy rim locks cause 'hammering' when travelling at speed.

Check headstock bearings for play.

yep headstock bearings are a known culprit too, had that on an mtx 125

the front wheel make the nose like there is some thing hitting whit the spokes and just befor your changing gear

are you sure that noise is coming from the front wheel?

it seems that its coming from the front wheel.

Thanks a lot for your help i greased the front wheel and changed the break pads it seemes ok but i have to give him a long run.
Regards
Alan