Rear Head removal

[Yoke]

Does anyone know if its possible to remove the rear head without taking the lump out of the frame. Looks like I have low compression on the rear, and its causing me a bit of trouble. Thanks

[6]

Does anyone know if its possible to remove the rear head without taking the lump out of the frame. Looks like I have low compression on the rear, and its causing me a bit of trouble. Thanks

Yes, its definitely possible because i have heard (i thiknn even from JD) that JD does 700 installs with the motor in the frame.

As to how... Dunno, i have never done it.

[DrPMC]

Does anyone know if its possible to remove the rear head without taking the lump out of the frame. Looks like I have low compression on the rear, and its causing me a bit of trouble. Thanks

As 6 says, it is possible. I found that I could remove both heads and cylinders with the motor in the frame. I can’t remember exactly what I did - may have needed to remove one or more mounting bolts to get the clearance. If you put a jack underneath before doing do so it makes it much easier.

[Yoke]

Great stuff, thank you.

[rpcraft]

My understanding from JD is the rear head is easy and the front head is the pain but I have yet to tempt the beyonder.

[Yoke]

Yeah it looks to be a simple enough job, with plenty of space. I just did the leak down test last week and it’s pointing to intake valves so I am hoping the issue is just contained to the head. Compression test shows 25 psi on the rear, and hence she is spluttering. Just as I though I was done with this bike.

[6]

. Just as I though I was done with this bike.

Mmmhmmm.
They like to do that.

[Hordpower]

Both heads/cylinders can be done in the frame. Rear is easy, front you have to hold your tongue just right to remove the cam tunnel bolts.

Trivia- I used to install new rod bearings in the race Ducatis I maintained without removing the engine from the frame. You can also do it on SV650's.