cam chain timing

[xr600 96]

Hi guys

So I pulled my head off the other day to remove my auto decompressor but now I can't seem to get the timing to line up it ether sits too low on the left side or too low on the right.

any ideas???

[baldy110]

Your cam chain is stretched.

[Thermographer]

Did you check it before you tore it apart?

[xr600 96]

No I didn't think to check it before I pulled it Off

If my cam chain is stretched how come there is no play in the chain once I put the tensioner in?

[xr600 96]

No I didn't think to check it before I pulled it Off

If my cam chain is stretched how come there is no play in the chain once I put the tensioner in?

[Horri]

Post a picture of the top marks and the line up you have..a bit of float either way is kinda normal..Can you lift the Camhain off the top of the sprocket to any degree with the auto tensioner in place,,post a picture of that to..

Edited July 12, 2013 by Horri

[brianhare]

The chain has to be stretched a pile before the tensioner won`t due it`s job...but if the marks are off at TDC then the chain is stretched and you`d better replace it..

B

[xr600 96]

Here is the pictures

[ohio rusty spokes]

You need to get a OEM service manual. On most XR's the lower cam sprocket must line up with a mark

on the crank case or the "T" mark on the fly wheel side when setting the cam sprocket. Do it wrong and plan

on some costly parts.

[xr600 96]

What will go wrong if the timings out

[xr600 96]

When I pull the tensioner out I can get the timing marks to line up

When I pull the tensioner out I can get the timing marks to line up

[brianhare]

If the timing is off too much you can have the valve hit the the piston on overlap...

The chain does not actually stretch......it wears,,the pins wear out and the chain fails,,not pretty..

B

[xr600 96]

My chain doesn't look worn is the anything else it could be

My chain doesn't look worn is the anything else it could be

[Muzz67]

You got rotor on the 'T' mark,, not the 'F 'mark?? Easy mistake to make.

[xr600 96]

Yes

[reduceus]

Listen to Uncle Brian - what he dosen't know is not worth putting on a postage stamp - Change the chain - it's stretched.....

[xr600 96]

Well I've bitten the bullet and orded One ?

[bork]

Hi guys

So I pulled my head off the other day to remove my auto decompressor but now I can't seem to get the timing to line up it ether sits too low on the left side or too low on the right.

any ideas???

Your bike have many hours on it? Is it possible to put gear on 180 degrees out? I cant remember any off this when I did my auto compressor removal. (sigh getting old)

[reduceus]

Bork - please do not use bad language on this site, it can upset people (me) old indeed.......

[creeky]

Your bike have many hours on it? Is it possible to put gear on 180 degrees out? I cant remember any off this when I did my auto compressor removal. (sigh getting old)

It is not possible to get the cam timing out as the spark occurs every crank revolution. As long as the cam sprocket marks line up with the gasket surface of the head cover and the "T" mark is lined up, all is good.