Front sprocket removal

11376 Views 13 Replies 8 Participants Last post by crotchrocket71, Apr 27, 2009

6speed

Discussion Starter · Apr 23, 2009

ok here's the thing, i dont have rearsets for my bike or a chain at the moment (rearsets are still waiting to be shipped). i do have my old chain i could put back on and the piece of my rearset to change gears i can force it by hand if i need to. has anyone tried to wrap a bar or something in a towel and put it between the spokes of the back wheel to keep it from rotating? bad idea? put the trans in gear? bad idea? obviously the ideal situation is to have the rearset on and hold the back brake in, correct? anyone have any creative ideas to get the sprocket off with a socket and breaker bar?

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Big Will

· #2 · Apr 23, 2009

I usually put the bike in gear, hold the rear brake and break that bolt loose - HOWEVER

Last time I could not get it loose so I put a broom handle wrapped in a towel through the swingarm and rear wheel to stop it from rotating. If you can get your old chain on I would try that method.

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THEJMAN

· #3 · Apr 23, 2009

just put it in gear and use an impact gun

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MXRider

· #4 · Apr 23, 2009

THEJMAN said:
just put it in gear and use an impact gun

this ^
my electric impact works wonders for front sprocket changes.

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Deathace

· #5 · Apr 24, 2009

I have put a lump of wood between the wheel and swingarm and used a long breaker bar on the front sprocket nut it works a charm if you have no impact wrench/gun.

There is nothing wrong with the above method if you protect the parts from harm, go back a few years and impact guns were only for the well off (not so nowadays) so you do what you have to.

Russ

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6speed

Discussion Starter · #6 · Apr 24, 2009

thanks for the input guys, ill be trying this tonight. i read elseware on here that someone said NOT to put it in gear though because of the risk of turning the engine? i wasnt sure that meant. also, do i risk anything putting wood in the wheel with cz wheels are the spokes weaker?

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ChibbMD

· #7 · Apr 24, 2009

Wrap the piece of wood in a towel. You won't have any problems. I did this multiple times on my old bike with CZ's.

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philip1000rr

· #8 · Apr 24, 2009

Put both wheels on the ground, have somebody sit on the bike and hold the front brake while you turn the bolt. As long as you're not on a slick surface the rear wheel won't spin.

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6speed

Discussion Starter · #9 · Apr 24, 2009

philip.maher said:
Put both wheels on the ground, have somebody sit on the bike and hold the front brake while you turn the bolt. As long as you're not on a slick surface the rear wheel won't spin.

thats a good idea i did not think of that scenario, but unfortunately i dont have front brakes either; they were ordered with the rearsets which havent shipped and its been 3 weeks now (thanks *********) edit: moto mummy is blanked out?

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6speed

Discussion Starter · #10 · Apr 27, 2009

that sprocket came off so easy i think i couldve done it with a 1/4" drive ratchet and minimal effort instead of a breaker bar...should i be concerned?

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Deathace

· #11 · Apr 27, 2009

No dont be concerned they dont always go tighter than a nun's snatch but the above method is if they do, some bikes have a ring that bends up on the nuts to stop them moving and have barely any torque to set them. Different bikes and circumstances lead to different outcomes.

Glad you got it off.

Russ

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6speed

Discussion Starter · #12 · Apr 27, 2009

ok great to know

thanks everyone for all your help on this.

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philip1000rr

· #13 · Apr 27, 2009

6speed said:
that sprocket came off so easy i think i couldve done it with a 1/4" drive ratchet and minimal effort instead of a breaker bar...should i be concerned?

Be careful when you put the bolt back in. Make sure you torque it down tight - you may want to use some thread locker. That bolt actually backed off on mine and started drilling through the sprocket cover as I rode. It almost bored a hole right through it and bent that bolt into a snake. I had to go to the dealership and buy a new bolt for it. I did the nicky mod to the cover after that so I could keep an eye on it.

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crotchrocket71

· #14 · Apr 27, 2009

diffinately put tread lock back on even if you torque it just as a safety measure can always put against wall also so bike dont move forward. also impacts arent good really because your banging the dogs on the gears which could give you probs later

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