Valve Washers

[blackie]

Hi' All, I'm just rebuilding my GPZ1100 head, and noticed two differant washer's under the bottom valve spring seat, Very thin washer's, I've got 6 that look right and 2 that are differant, look's like someone put them in because they couldn't be arsed to order the right one's, and that's the question can you still get them and from where, Thank's in advance fella's...

[Gus]

What model GPZ?

[zed1015]

What do you mean washers ?
Normally you just have the std steel spring seat with up turned edges (which is the same on all models) but if the motor has been played with there may be additional shims under the springs which retain the correct static spring pressure to compensate for valve height varience or to increase seat pressure.
If this is the case then not all the shims will necessarily be the same thickness or indeed under every spring.

[blackie]

I think it's GPZ A1 Head, the bottom end is 1000'J, It was all built when I got it, I'm just putting new cam's in when I noticed the washer's, It went for a new valve guid, I'm sure all the washer's were the same when it went, and it came back with two washer's that i've never seen and two valve seal's that were differant, look's like someone dropped my box of part's, I've got new seal's comeing I just wonderd about the washer's, it is a 1260 motor ported head kent cam's, It 's just the bloody washer's...

[GIMPieZ650]

I know the washers you mean, had them in my z440 aswell, not sure if you can get them though

[zed1015]

Here's a pic of a spring seat.
This is the underside view.
As you can see it has upturned edges on the inside and outside which the valve spring sits in.
It locates on the valve guide and cannot be removed with the stem seal in situ.
If yours do not look like this they are wrong.
Any seat from the z1 upwards will fit. also z650/750 etc are the same too.

[z1bman]

part no 16007-1024 £2.94 each cradley have them in stock

[Gus]

[blackie]

Yes mate got the same spring seat's as your showing, the washer's go underneath, very thin they are, sound's like the smaller engine's got them, Bman is that the part No'' I'm after.... not sure why I need them if there not in the manual, if nobody else got them in their bigger motor's...

[z1bman]

the part no i have suplied is for a gpz100 b2 but all the 1000's & 1100 use the same part. they are fitted to prevent the spring from wearing the head

[zed1015]

Yes mate got the same spring seat's as your showing, the washer's go underneath, very thin they are, sound's like the smaller engine's got them, Bman is that the part No'' I'm after.... not sure why I need them if there not in the manual, if nobody else got them in their bigger motor's...

If you have shims in addition to the spring seats then they are NOT std .
The small motors do NOT have them as std either.
They are as I described above, shims for correcting/adjusting seat pressure.
If they have been mixed up you may as well take them out unless you have a gauge that goes in the vice for measuring spring pressure at their installed height.
If the motor has been built and run a while the springs will have sagged anyhow and they should be reset.
This is only really crucial in racing to get the max out of the motor so if it's just for the street then take them out .

[blackie]

Yes mate only for street use, think I'll just leave them out, If kawasaki didn't put them in that's good enough for me, thank's for the reply's every one, been busy with the House the last few months, hopefully get the bike sorted now, thank's again Lad's....