Just wanted to make sure all you 2 wheel guys were aware of a problem with the Suzuki 400's. I have an LT Z400 quad and found out about it on z400central.com.
What's happening is the factory installed coolant is corroding the magnesium clutch cover. If you remove your waterpump cover, you're likely to find this:
That is the coolant and chunks of magnesium gumming up the hole that the coolant flows thru.
Suzuki has basically said that's it's not a big deal and they are not planning on doing a recall. That is absolute crap! I highly recommend that you inspect your bike and/or take it to the dealership! The dealership MUST be the one to report it to Suzuki so your VIN is on file.
Here's a link to the z400central forum about this topic. There's plenty of pictures and horror stories about how poorly Z owners are being treated by Suzuki.