Got a bad tick after oil change
So I have a 2004 VN2000 and I decided to do an oil change with some 20w50 mobil1 and a K&N filter. About 400 miles after the change, I developed a LOUD tick in the front cylinder head (I could hear it over the engine and wind noise on the highway doing 75, with full-face helmet and earplugs) after going on the highway for about 15 minutes.
I was feeling pretty despondent. I only have about 10k miles on my bike, and so I rushed home to try to do some research. After much reading, I decided I was most likely going to have to do a replacement of the HLAs and screens (a la the sticky here) but then I came across one post on another forum saying that it is very much worth trying to run some seafoam/magic mystery oil through the oil and see if that does anything to help. Figuring it was easier and cheaper than dropping the engine and replacing all those parts, I poured half a can of seafoam into my oil and ran it for 30 minutes. I was disappointed to hear that nothing changed. I also adjusted my idle set screw so that the VN2k idled slighly higher (it was set at a very low rpm by previous owner which I never changed. Sounded like a typical harley "potato potato" idle, which apparently is far too low for the Vn2k) I shut the bike off, and went to bed.
I wake up this morning, go out and fire the bike up again and let it idle for about 15 minutes. The ticking was just as present as yesterday, and i was feeling pretty depressed about the whole situation. I come back 15 minutes later and lo and behold, the tick is now at half-volume compared to before. Excited, I throw my leg over and take the bike out for a ride. 40 minutes later, I get back home (after running the bike pretty hard: high revs, hard acceleration etc) and the tick is gone. Just the sound of the stock exhaust and the quiet murmur of the HLA's gently running.
I am absolutely THRILLED with the seafoam treatment. I highly recommend it to anyone experiencing some valve noise. Be sure to let it run for a while, you won't hear any improvements right away.
In the future, I'm planning on switching the oil to rotella t6 5w40, I think the thinner oil should help get the oil all the way up through the rocker screens and whatnot.