Rocket Three R middle cylinder compression is zero. Does anyone know the cause?

[JAPANユーザー]

Rocket Three R middle cylinder compression is zero. Does anyone know the cause?

 

[JAPANユーザー]

Enj error code p0068

 

[stingray]

Too much throttle?

 

[JAPANユーザー]

Too much throttle?

No. The middle cylinder had zero compression.

 

[JAPANユーザー]

No. The middle cylinder had zero compression.

Where is the air leaking?

 

[stingray]

Where is the air leaking?

You probably have a hole in piston or broken valve.

 

[wjb]

A leak down test would narrow it down.

 

[stingray]

If you actually have zero compression it isn't going to do a leak-down test. Something is broken.
Do you hear a leaking head gasket?

 

[JAPANユーザー]

If you actually have zero compression it isn't going to do a leak-down test. Something is broken.
Do you hear a leaking head gasket?

I don't know where to start checking, and I don't hear any leaks.

 

[imcool]

Rocket Three R middle cylinder compression is zero. Does anyone know the cause?

which tool you used to check the compression?

what are the values for other two cylinder for compression?