P700 Compression test

[joeyaffhy]

Does anyone know what the compression should be in a 2020 P 700 deluxe. Is there a trick to doing a compression test on the 700 seeing it has one cylinder and two spark plugs.

 

[Admin]

 

[DG Rider]

Just leave one plug in. Pull both leads (so it doesn't start) and place them near a ground source. You could also unplug one of the coil leads instead.
Make sure the battery is well charged, and hold the throttle WFO when testing. Around 5 revolutions or so (watch the needle start to "top out").
Spec is 80psi because of the compression release. I assume that is a minimum.

 

[joeyaffhy]

Just leave one plug in. Pull both leads (so it doesn't start) and place them near a ground source. You could also unplug one of the coil leads instead.
Make sure the battery is well charged, and hold the throttle WFO when testing. Around 5 revolutions or so (watch the needle start to "top out").
Spec is 80psi because of the compression release. I assume that is a minimum.

Thank you.

 

[DG Rider]

Thank you.

Sure thing.

May I ask why you're doing a compression test on a 2020?

 

[Glock21user]

Yes inquiring minds wish to know.

 

[joeyaffhy]

Sure thing.

May I ask why you're doing a compression test on a 2020?

I have to add oil between oil changes often. It’s only on the second oil change. I have a problem with it losing power. A couple times I’ve started it up smelt burning oil and big cloud of smoke came out the exhaust. I’ve had it at the dealers and they cannot find anything wrong with it but they failed to do a compression test. I think there’s a problem with the top end on this machine. I want to get to the bottom of this as my warranty ended back in May.

 

[John700P]

I have a 2017 700 deluxe in shop now getting a head gasket. Sounds like you may have same issue. Did you get it resolved?