Front sprocket "stiff"

[razor-]

hey.
A mate had his pocket bike over today and when i span his sprocket it would spin around a few times before it stops..
It wasnt until i done that until i noticed that mine is so hard to turn...
If i turn it it only spins 1/8 or so of the way around .... If i replaced the bearing would this fix it??

[razor-]

to put a new bearing in it i would have to take out the pinion which would require a special tool wouldnt it?

[mac90]

yeah ya have to take out the pinion & some have a sirclip that holds the bearing in

[beans]

it depends wheather its a 6tooth.If it is it wll go through the bearing.No need to take it off.If 7 tooth then yes you will .There is a circilp behind the housing.Look at the back of the bell and you will see it.Also one on the sprocket side.

[razor-]

Originally Posted by beans

it depends wheather its a 6tooth.If it is it wll go through the bearing.No need to take it off.If 7 tooth then yes you will .There is a circilp behind the housing.Look at the back of the bell and you will see it.Also one on the sprocket side.

it is 6 tooth..
How do i get to it then???

[beans]

razor.You remove the bell housing.Then look in the back of it.You will see 2 slots.If you turn it you will see a circlip holding the bearing in.Its an inside circlip.Get circilps pliers and remove it.tap srocket with a peice of hard wood and it will come out of the hosing.Then have a look behind the sprocket.You will see another circilp.Remove that and hold the bearing and tap it of also.refit new6202 high temp bearing refit it and its done.