Front Sprocket

[tommyardin]

[quote author=tommyardin link=topic=19819.msg228922#msg228922 date=1460361036]
Hello Gentlemen,
Can anyone tell me how the f--k do you get the front sprocket off my 02/03 fzs600. I purchased the new modified sprocket nut and washer from Yamaha and have tried a couple of times to undo the sprocket retaining nut, I think the Incredible Hulk fitted it originally. I am assuming it is a standard right hand thread. 32mm socket and a 500mm extension lever, I am frightened to apply any more force than I have thus far for fear of snapping something.
I have left it for now as I have rightly or wrongly reasoned that as its that tight it's not likely to cause a problem. I have read about all sorts of nasty things happening when problems occurred with the nut.
I am 12st 10lbs in weight and a retired bricky so I am not adversed to applying a little force, but have shivered at the thought of snapping or stripping a thread on the shaft. Am I just being a tart and should I go for it?

If somebody has applied loctite to it 500mm lever will do nothing. You need a pipe at least 1 meter long. Stop the rear wheel with some wood on the swingarm, like I have used hammer handle wrapped in old t-shirt.

Make sure you have straighten the washer first. Have you done that? There is an washer below the nut which is bend to prevent unscrew. You need to starighten it with a big screwdriver and a hammer first.

Than go for it with the 1m pipe extension. It is tight but will go off. Let friend of yours seat on the bike or if alone like I have done it, you push hard with your left hand down on the socket and with right hand upwards with the pipe making sure you do not overturn the whole bike.
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Cheers for the advice Val I will give it a go at some point.
I do have the Upgrade nut and washer now (12mm), the one that was supplied by Yamaha was a 9mm nut the same as the original, it may of been my fault as I asked for a replacement nut and washer for the sprocket and I guess they just gave me the nut to replace the original, I should have asked for the upgraded nut and washer set.
But to be honest I feel as if I am being generous to them.  BASTARDS :eek