When I was a teenager in the early 80's these friends of mine had a '72 440 Puma, it was always finicky and hard to start warm- in retrospect why it even ran is beside me- the older brother they got it handed down from had "free aired" it by removing the cylinder tins and the fan belt. Even though the fins pointed the wrong way and there were no forward facing vents in the hood. I'm sure that Kawasaki needed seals and who knows what else. When it did run it flew, but talk about a squirelly machine to go straight on!
Good luck with your jag .I have a 340 1980 that I keep around.Hope to wrench on it with my young grandson. He's looking like a gear head which brings a smile to my face
1981 jag 4000. I’m 48 and that was my first sled. Ended up buying a mint one and it sits in my man cave. If you had one you know what I’m talking about 🏆🏆
The compression is good. At between 50 and 70+ when cranking it. It’s has a compression release. So you are good. When it’s running the compression will be higher. Good job gettiner going 👍