Engine noise
Road Captain
Joined: Jun 2012
Posts: 574
Likes: 156
From: Big Sky Country
Well, I installed the rockout sleves last week, and it seemed better for a day or two, but I'm back to the same issue again. If anything, is say it's becoming more pronounced - any time I've been under heavy acceleration for a while then let up. It's making the noise now even I completely let off the throttle.
Oh well, I'm a few hundred miles into a trip, so we're just going to roll with it and hope for the best! BTW, skyline drive is beautiful!
Oh well, I'm a few hundred miles into a trip, so we're just going to roll with it and hope for the best! BTW, skyline drive is beautiful!
Good luck and enjoy your trip. And please post up findings if/when you learn anything!
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6th Gear
Joined: Jun 2020
Posts: 11
Likes: 0
From: Pittsburgh
I wanted to follow up on this post, as I seem to have found the culprit. I took a 4 day trip last month - Pittsburgh to Tennessee and back - and after the first day, I never heard the noise for the rest of the trip - 1500 miles. First time out after coming home, I started hearing it again. Something finally clicked in my brain as I was thinking about where to stop for gas - I had been routinely filling up at the Sheetz right by my house. When I was out of town, obviously I wasn't getting gas at my local Sheetz, and when I came home and filled up at Sheetz, the noise was back!!. It's been most of a month, and probably another 600 miles ridden - no Sheetz gas, and no engine ticking noise.
I don't know if it's just the Sheetz by my house, or if several local stores all get the same gas, or what. All I know is since I stopped getting gas at Sheetz, I haven't heard the noise from my engine. I've always used 93 octane/premium as recommended by the HD service department. Just seems like my bike doesn't like whatever Sheetz is putting in their gas.
I don't know if it's just the Sheetz by my house, or if several local stores all get the same gas, or what. All I know is since I stopped getting gas at Sheetz, I haven't heard the noise from my engine. I've always used 93 octane/premium as recommended by the HD service department. Just seems like my bike doesn't like whatever Sheetz is putting in their gas.
Grand HDF Member
Joined: Mar 2011
Posts: 4,816
Likes: 1,320
From: Good roads, cold beer
interesting, local BP down the road has 91 non-ethanol and I fill up there frequently. About a month ago I noticed tons of top end clanking after fill ups there, similar to when riding in CA where non-eth does not exist.
Anyway, filled up with non-eth at a different gas station few days back and the noise is gone.
SO....has me wondering if the local BP has shenanigans going on w/ their non-ethanol fuel, meaning its really not non-eth but they're pricing it as non-eth. Was actually going to start a thread on it.
Anyway, filled up with non-eth at a different gas station few days back and the noise is gone.
SO....has me wondering if the local BP has shenanigans going on w/ their non-ethanol fuel, meaning its really not non-eth but they're pricing it as non-eth. Was actually going to start a thread on it.
Advanced
Joined: Oct 2020
Posts: 83
Likes: 22
From: New Hampshire
Glytr makes this noise that sounds like valves seating, loudly, around 2k rpm, louder at light load but still audible at any. Above and below 2k it's very subdued like valve noise normally is; one can hear it if they pay attention but it fades away otherwise. I'm pretty sure it's exactly what it sounds like ... some valve train harmonic frequency is around 2k rpm and that makes the valve noise louder. Since it's a harmonic frequency thing it won't happen at the exact same rpm for each bike, it'll depend on stuff like how tight the top engine bolts are and offbeat stuff like that. She's completely silent when starting, say when the journals are empty, so I don't think it's a connecting rod. I haven't actually tried to diagnose it other than listening when it happens, but I'm pretty sure it's no cause for alarm.
Maybe *I* should change my gas. lol...
Maybe *I* should change my gas. lol...
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