doesn't look right.....

[kawasaki_man]

It looks like you have a few problems, certainly exhaust valves have been hitting pistons, where the impact has happened might suggest that the incorrect pistons are indeed fitted. One would expect the impact to occur where the cut was on the piston crown if there was a cam timing problem (I've attached a picture of what I found on my Z1 when timing was out by one tooth.) By the amount of oil on pistons I would suggest probably new rings and maybe re-bore if you are going to go the new pistons route. For the cylinder head the valve seats / oil seals might need attention also.

Z1B_pic15.jpg (268.62 KiB) Viewed 602 times

[Peteypops23]

Thanks for that....
I was going to send the barrels away to get rebored and new pistons/rings so that's just confirmed it.....
thanks for your input once again guys, much appreciated.
I'll get this mongrel on the road sometime
Pete