Front wheel mz125 sm not stable

[kurriang]

Guys,

I just bought 2ndhand MZ125 SM and found out that my bike a bit shaking at the front when i speed. It is just 100km perhour. Any idea? Solution?

[jbthumper]

have you checked the wheel bearing?
fork alright?not leaking?
if the bearing's ok i would suggest you to send it to a trusted shop to get the spokes restring/balanced...should cost RM15/wheel+/-.

mind telling me from whom did you get the bike from?

[kurriang]

Wheel bearing <--- do you mind to show me the way
Dont think the fork leaking as there is no oil found at the fork.
I did asked the shop to tighten the handle and it has been done but the problem still persist.
Will ask the shop to check the bearing / balance spokes.

Bought it in Jln Klang Lama - Eng Huat

[jbthumper]

wheel bearing is at the hub...where the front wheel shaft slides into.
try lifting your front wheel and try to rock it...if it rocks...then the bearing's out.

IMHO it would go away after you balance the rim.

gd luck!

[kurriang]

As i am new to MZ, i need to ask few question.

Every gear when it comes to the top (meaning high rpm) my bike a bit jerk. Its happened to all gear.

If the road is wet, my pants will get wet as well from knee to the bottom.

Is it normal for MZ or i am the only one who facing the problem.

[jbthumper]

As i am new to MZ, i need to ask few question.

Shoot. We try our best to help each other

Every gear when it comes to the top (meaning high rpm) my bike a bit jerk. Its happened to all gear.

odd...it should be smooth. Might want to check your carburetion. However, if you are dragging your gears, it could be the rev-cut. It cuts the engine after 10500rpm.

If the road is wet, my pants will get wet as well from knee to the bottom.

might be caused by water spray from the front tire or the tire of a vehicle in front of you. No help here. However, I know scooters keep them dry.




btw,did you get the wheel fixed?

[kurriang]

Thank for the answer man but i am still facing the front wheel problem eventhough i've send it to the shop. After the wheel repaired, the shop trying to give me the safe answer "if little bit shaking it is normal" <-- i really dissapointed with the answer. There is no such thing. It is not little bit but it is terrible, I've no idea what to do. Maybe i just go back the shop and ask them to check again and again. This problem will occured when i speed up more than 105km perhour.

[DAVID THOMPSON]

check to make sure tires are beaded up properly on the rims

make sure rear wheel is stright in swing arm after chain adjusted

check both front and rear for correct tire pressure

[jbthumper]

Yup. Dave's right.

And you definitely need to ditch your current mechanic.

The SM should be very stable up to 130km/h.