That 03 KR I bought this past fall had this very problem. The followers on 2 cylinders had come off. I replaced the parts and 2 adjusters, and it's still running strong. I sold it to a relative and she's put over 6k on it since then and it is fine.

 

Okay so I did a compression check. Cylinder 1,5 and 6 all three had 180 pounds. I checked them all 3 times. Cylinder 2 started with 80, went up to 95, and ended with 105. I checked that one four times and it stayed at 105.

 

@JBrew, please advise

 

squirt oil in the low cylinder.
If compression comes up...its rings
If compression dont come up...its valve

Either way its not good news unless its just a lash adjuster

 

I did put oil in the cylinder, no cigar. I'm going to try follower and lash adjuster this weekend.

 

I think I would rip that right cover off and see exactly what might be the problem with #2. I was wondering what made you decide it was a valve from the opening post? Did you over-rev the motor or what. To bend a valve the timing would have to be off the cylinder or the chain loose enough to throw a big enough angle degree to touch a piston, OR carbon build up in the cylinder and the valve hitting hard carbon buildup on the piston top.

I'm just having a hard time figuring what you came up with a valve right off.

 

Not really that common, but a busted valve spring will cause some not-so-nice things to happen too. But yeah... pull the cover and have a peek. I, personally, wouldn't be driving it until you know for sure.

 

I guess I jumped to the conclusion that it was a bad valve. I'm not 100% sure why I jumped to that

 

Ran a leak down test, around 90% leakage... coming out of the exhaust. I have a feeling it's not a follower or a lash adjuster

 

Sounds like a burnt valve, or even a bent valve. Could be a follower or even a spring. Pull the cover first.