You'll need to call, but Z1 can order OEM parts.
Do NOT use the aftermarket K&L junk -- the Suzuki kits are more complete (the OEM kits include the pistons, whereas the aftermarket kits only contain ill-fitting imitation seals), much better quality, and about the same cost.
http://partshark.com is another good source for OEM parts. There are many other dealers who sell online, and maybe one near you.
Do NOT use the aftermarket K&L junk -- the Suzuki kits are more complete (the OEM kits include the pistons, whereas the aftermarket kits only contain ill-fitting imitation seals), much better quality, and about the same cost.
http://partshark.com is another good source for OEM parts. There are many other dealers who sell online, and maybe one near you.