636 ninja ticking at night

Hello, My son has a 03 636 ninja and he states that at rest the bike clicks (after cool down). He said it's an electrical click. I told him since its a fuel injected model that it prob has something to do w/ a sensor but that was just a guess. Anyone have a take on it? Thanks in advance, Joe

Exhaust pipes cooling and shrinking back to size is my guess.

Does it click for several hours, or for a short time? Like Steel mentioned, it's normal for a bike's exhaust system to "Tick" or "Click" as it cools down. Most Kawasaki's and other brands have a double wall exhaust header of steel, and one layer cools quicker than the other.

If the noise continues for an hour, I'd ask at the shop about why.

I'm with both of the above.

Cool, some questions i can answer! :woohoo: