Front sprocket direction

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vince67
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Front sprocket direction

Post by vince67 » Sun Sep 06, 2009 5:11 pm

Hello mates :)

For the front sprocket direction, for me the first picture below is the good direction (with shoulder outside) and the second is the bad direction (with shoulder intside), but thanks to confirm ;):

Image

Image

regards,
Vince

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RedexRobB
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Re: Front sprocket direction

Post by RedexRobB » Tue Sep 08, 2009 4:46 pm

thanks for that vince :excited

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Re: Front sprocket direction

Post by vince67 » Tue Sep 08, 2009 8:54 pm

ehh..., ok, thanks , but I'm not completely sure, could you confirm if it's definately the good position?

thanks to confirm,
regards ;)
Vince

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Re: Front sprocket direction

Post by RedexRobB » Wed Sep 09, 2009 5:46 am

oh i see, i though you were confirming for US! lol

http://www.zxrworld.co.uk/images/Lseries/lgears.gif

theres the microfiche, doesnt really give much away but i suspect that the 2nd picture is the way for it to go on.

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Re: Front sprocket direction

Post by Mad Phil » Wed Sep 09, 2009 7:55 am

Yes the shoulder against the bearing.

If the other way round the retaining plate wont sit flat.

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Re: Front sprocket direction

Post by vince67 » Wed Sep 09, 2009 4:06 pm

Mad Phil wrote:Yes the shoulder against the bearing.

If the other way round the retaining plate wont sit flat.
Be carefull, because the sprocket on my pictures above are 13 teeth, not 15teeth like original sprocket, see below my other front sprockets, you can see the 15teeth and 16teeth have shoulder to ensure sit flat for retaining plate (and not 14teeth and 13teeth on my first picture)
Image

I found some example of pictures of zxr400 engines on google pictures and we can see that the shoulder is always external:
Image

Image

For me the rule is always to have the marking at the external, to show it when it's on the bike, that's why I think the shoulder and specially the marking should be external...

ZXRWorld people, how is mounted your front sprocket on your bike??
That is the question...
;)
Vince

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Re: Front sprocket direction

Post by RedexRobB » Wed Sep 09, 2009 4:23 pm

The microfiche does suggest some detail on the outward facing surface of the sprocket so maybe that is the shoulder? But for the reason Mad phil suggested, it doesnt make sense for the flange to be bent when the bolts are tightened.

Ill need to look at pics of my rebuild to see what ive done with mine, but im sure ive got the shoulder facing the engine.

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Re: Front sprocket direction

Post by Mad Phil » Wed Sep 09, 2009 5:09 pm

Hmm.. Need to just measure the offset dimensions then,

but there must be a different locking plate though on the other sprockets

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Re: Front sprocket direction

Post by hciR » Wed Sep 09, 2009 6:24 pm

I'd say the flat side needs to be against the engine to line it up properly, maybe put some washers between the sproket and locking plate to stop it bending.
mine
Image

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Re: Front sprocket direction

Post by RedexRobB » Thu Sep 10, 2009 3:23 pm

Is that a split link??? shocking

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Re: Front sprocket direction

Post by Mad Phil » Thu Sep 10, 2009 3:46 pm

Whats so wrong with a split link on a 400??

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Re: Front sprocket direction

Post by RedexRobB » Thu Sep 10, 2009 5:20 pm

As far as i understand they arent suitable for anything over 250cc because the the chain can stretch under power and ping the clip off. If its ok, then its ok, not a chance id take tho.

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Re: Front sprocket direction

Post by hciR » Thu Sep 10, 2009 6:51 pm

Yea its a split link lol. I've always used em and never had any trouble, it's a heavy duty chain and doesn't seem to stretch much.

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Re: Front sprocket direction

Post by RedexRobB » Fri Sep 11, 2009 5:38 am

i think ive worked out why the shoulder does go as far on the 14th tooth sprocket. If it did wouldnt it catch the chain? And the flange plate is set off to allow room for the links?

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