removing front sprocket

[black13]

I am replacing the sprockets along with new chain, anyone got any ideas on how to get the front sprocket nut undone, it is bloody hard to undo, i removed the speed sensor bolt , now i am just cranking the motor, only thing i can think of doing is putting the rear wheel back on with new chain , then weighting the rear brake pedal to apply the rear brake. any ideas?

merry xmas to all the busa maniacs here
cheers & beers
paul

[CeeJay07]

Maybe put it into gear and crack the nut with a quick sharp blow (hammer on ratchet/ breaker bar). If all else fails, swear at it then give it to someone else. Have a good Xmas.

[Maj]

1st gear, while standing on hard on the brake and an extension on the breaker bar , then a sharp movment, not a slow lean top crack it

[Madmax]

I am replacing the sprockets along with new chain, anyone got any ideas on how to get the front sprocket nut undone, it is bloody hard to undo, i removed the speed sensor bolt , now i am just cranking the motor, only thing i can think of doing is putting the rear wheel back on with new chain , then weighting the rear brake pedal to apply the rear brake. any ideas?

merry xmas to all the busa maniacs here
cheers & beers
paul

In a word "Rattlegun"


In other words, make sure your brake is still there and have someone lean on it pretty heavily while you follow the other sage advice above - a shoirt sharp crak with an extension bar on it.


Good luck, next year ask Mrs Santa to buy you a small inexpensive compressor (under $200 from Magnet Mart) and go the rattle gun.


Cheers



Max

[Volvi]

yup I had alot of difficulty to, rattle gun (air hammer socket set) or long breaker bar the only way to go about it.

[black13]

thanks for the advice, i got access to rattle gun & impact sockets, will do that

[Cb Boy]

It's not usually a good idea to remove the front sprocket while the bike is in gear as this puts quite a lot of strain through the gear box....

I realise you have already removed your rear wheel and possibly the old chain?

The best idea when replacing chain and sprockets is to remove the front sprocket nut first, before taking the rear wheel and old chain off.
What I do is place a piece of wood (usually a pick handle) through the rear wheel (I use wood so it doesn't mark the swingarm) with the bike in neutral.

Then you can use as much force as is required to remove the front nut.....either using a breaker bar or piece of pipe on a socket handle, with no strain being put on the gearbox or rear brakes.
Allways use a socket to do this job and not an adjustable wrench as I have heard of some people trying

Once the front nut is loose, then you can remove the rear wheel and take to the old chain with an angle grinder

[fasterfaster]

I reckon CB if you can break the box doing that then the 180 Hp + going thru that box is going to break a damn lot more then

[Cb Boy]

I reckon CB if you can break the box doing that then the 180 Hp + going thru that box is going to break a damn lot more then

You're probably right..... But usually the power coming from the motor is through a clutch, or at least the gearbox is unloaded by rolling slightly off the throttle... (when changing gears of course)
It just doesn't sit well with me, giving a short sharp blow with a hammer on a breaker bar when that force is being taken directly by the gearbox

It's kind of a moot point anyway, as having a bike in gear will not be enough to stop the output shaft rotating with that kind of force on the nut, as the motor will just turn over.... hence why I suggested a block of wood through the back wheel, which negates the need for having it in gear at all

[black13]

got it sorted, thanks for the advice all

[bear]

Mine came off just using the brake. I think putting it in gear isn't a good idea. Sharp wallop though!