KZ400: Motor dies after slow drive sequence

Hello,
seldom I can observe following effect: The motor dies when I stop after riding with less throtle in the highest gear. Immeaditely restarting let the engine idle well. I think there is no ignition problem, because the bike drives well without misfiring.

What do you think about the reason of this behaviour?

Regards Wolf

Would assure correct (1) valve clearances, and (2) functioning of the advancer unit which might be sticking and reluctant to fully closing at low rpm without fully closing until the engine stops turning over.

The advancer may need cleaning and/or lubrication.

And need not be quite this yucky before requiring some TLC:


Good Fortune!

First step in trying to understand running problems is to make sure all the maintenance is up to date. In addition to the items mentioned by Patton you can add clean points, clean plugs, clean air filter, vacuum synced carbs, clean carbs, etc.