Is yz125 front sprocket reverse threaded?

Question

that about sums it up but we have been workin on the front sprocket for hours and the front sprocket hasnt budged is it reverse threaded or just stuck?

Answer 1

make sure the lock washer (kind that bends over side of nut) is flat. Bend it flat with a s***w driver and use a large socket and a breaker bar. If the chain is still on the bike then put it in 1st gear and have someone hold the back brake.  The best thing to use is an electric impact gun, with a socket. or air tools if you have access.

good luck

Answer 2

work it out people..  which way does the rear wheel turn...

as you look at the sprocket from the right hand side of the bike..

the sprocket must turn in a anti clockwise direction to turn the wheel the correct way..

there for if you put a socket wrench on the nut, the nut must unscrew in clockwise direction other wise the nut would come undone as the motor tried to turn the back wheel..

Had a look on the net..

http://images.google.com.au/imgres?imgur...

looks like its left hand judging by the part No..

Answer 3

It's a Normal Thread,,,with a fold-over tab lockwasher.

They're installed at 40~45 ft/lb torque.

It's a "soft nut" and often the lock washer will partially extrude into threads.

They can take up to near 100ft/lb break-out torque.

IF some genius has NOT played with the loctite,etc.

That's enough torque to break/damage 3/8'' drive tools in many cases.

Use a 1/2" drive,6 Pt Socket ,and a 1/2" drive breaker bar,,,with a 3 ft Cheater pipe on it.

Stand on it,,then give a sorta hop~bounce.

HOLDING the sprocket SOLID,,,so that any applied torque is not dissipated  by rotation is Very Difficult.

Get a Helper to help you cram the brake and Hold it

That avoids risking damage to Tools,Bike Parts,,,and YOU.

Careful beating on the nut,,,that shaft is in a ball bearing.

Do Not turn it Clockwise when facing it.

It's already Tight Enough as-is.

It might be Funny  to some folks when you break something,,or hurt yourself.

But I have a Hunch that YOU wouldn't get much of a grin outa that.

..................................

Best Bet/EASIEST,,,use a 1/2" air wrench w/ an impact socket.

Even a decent quality Electric impact wrench is not very expensive,,,and over the course of time You'll definitely get your money's worth out of it.

Make sure it's rated for at least 100ft/lb output

Good Luck,and be careful

Answer 4

I would dare say that it is an opposing thread, but i would get hold of a manual if you can. they're worth having.

If you can get ahold of some penetrene or form thereof to help loosen it up too.

Answer 5

Normal right hand thread.

Whenever you have a part that travels in a circular motion, the fastener that holds it on, must always be screwed "on" in the opposite direction of the parts rotation.

Since the sprocket rotates counter clockwise, to loosen the fastener, turn it in the same direction - counter clockwise.

Answer 6

i gave up trying to remove my sprocket.... i never thought about reverse threading tho.... i'll have to try that. (i've spent countless hours trying to get my sprocket off as well... never got it to move at all)

i know it ain't on THAT tight, so it must be reverse threaded.

Answer 7

but a big wrench on it hit with hammer if it dont move go the other way and yes i think so but really not so hard to try either way .. a air gun works better