[MauR]

Hello everyone,

My Ninja started to do something weird. (6500 Miles and stock)

After arriving home yesterday, while I was opening the gate, the RPM's got lower and lower and the bike died. Engine sound was like if only one cylinder was working. It was a little hard to started it again but it did start.

After revving a little it keep the idle at 1350 but after a minute or so it died again the same way.

Today I removed the Spark plugs and found they are CR9E and one of them looked wet right after it was removed (cylinder 1).

Attached is a picture of the plugs. on the left is the one of cylinder 1.

I am going to replace the plugs

My Questions:

1. Should I use CR9E or CR8E??
2. Are plugs so dark due to the number or am I running rich??
3. Is the idle problem spark plug related or should I look for something else??
4. Gaps is .033, is this OK?

Thanks in advance for your kind help.