In need of some part sourcing help.

[Bertdangerbon...]

Hiya all,

I'm having a hell of a time trying to source some final parts for my current custom project. It's a 1978 Kawasaki Z250a. Engine is stripped, valves lapped in, head ported and polished, barrel honed and new pistons . However... I can't find standard piston rings and I've had nothing but hassle sourcing valve stem oil seals. I've so far returned 2 sets as they have been the incorrect size. I'm looking for 5.5mm opening but keep getting 6.5mm delivered. The 6.5 is too big for my valves.

Any help would be AMAZING as i can't turn back now. 2 years in the designing and planning and the frame is away last week to be modified and my engineer has already completed matching to fork legs and yokes and he is just waiting on the correct valve stem seals before he completes the head. Part numbers for these would also be really nice as I keep getting varying results.

Thanks in advance.

Bert

[hmmmnz]

oil seal
https://www.cmsnl.com/products/920491062-oil-seal-fv_920491016/#.Vk-xxr9obe0
https://www.biketeile24.ch/en/engine/gaskets-and-seals-single/ventilschaftdichtung/einlass/valve-stem-seal-7340854.html
https://www.biketeile-service.de/de/motor/dichtungeinzel/ventilschaftdichtung/einlass/ventilschaftdichtungp400250420900.html

piston rings
https://www.ebay.ie/itm/221865712317
https://www.remarcables.com.au/Motorcycle-Parts/Rings1
https://www.sekaimon.com/gb/177976/Pistons,+Rings+%26+Pistons+Kits/201289584284/
https://www.1motoshop.cz/index.php?id_product=56&controller=product

your google-fu is weak,
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[Bertdangerbon...]

Jeeezuz!

Thanks for that and I fully admit that I'm well below average when searching the net.
Thanks for that mate. I'm also on the hunt for cam chain guides/ slippers as I've just noticed that mine both gave heavy scores in them. Do you have any links for these?

Thanks again.

Bert

[Vincent]

Bert...I've found the best way to look for new parts online is to find out the part number using one of the websites that have them listed then "Google" the part number.

You have to shop around with some stuff as the prices can vary significantly. Don't omit buying from overseas but be aware of any duty that may be owed.
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Space Is Deep

[bugeye_bob]

MR Cycles for the P/N then Partzilla to see what else it fits . . .

https://www.mrcycles.com/

https://www.partzilla.com/

[Bertdangerbon...]

Thanks for your advice guys. Amazing help.

Bert