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I was told the same thing. Mine has a tapping around 2000-2100 rpm, from day one. Dino vs synthetic made no difference. Several forum members have the same noise, so it is not uncommon. The rocker arm only has one adjuster even though it operates both valves and solid push rods. I suspect it is the difference between the 2 valve stem lengths. The only solution might be adjustable push rods, but that is no guarantee either. My previous 2 M8's were quiet.
There is no valve lash adjustment on a stock M8 right now. HD has come out with a adjuster on one valve so the pair can be adjusted to Zero lash per rocker arm. But it's a SE part right now.
Just bought an18 road king . The valves sound terrible to me. Took it back to Mad river harley and they said it was normal, there is nothing wrong! I would expect this noise out of an 1983 escort with 150,000 miles. Not a new Harley. My friend has a new ultra classic and it doesn't make any noise. Pissed to no end! Dealership won't do anything , now what. Does Harley seriously build an engine deliberately that sounds like the valves have excessive lash?
Have you tried driving your RK without the windshield? The somewhat parabolic shape of the police style shield tends to concentrate the sound of the valvetrain and reflects it back at the rider.
It makes the normal sound of the valves seem worse.
I'm going to be installing a tank lift kit on my RK shortly. I'm curious to hear what affect this might or might not have on my valve train noise.
I get some of this noise too on extremely hot days when the oil viscosity is at its thinnest.
There is no valve lash adjustment on a stock M8 right now. HD has come out with a adjuster on one valve so the pair can be adjusted to Zero lash per rocker arm. But it's a SE part right now.
Ah, I thought it was on all M8's. I'm not sure it is worth installing all that if it could be the cam ramp.
after 2 years and 25000 miles I'm amazed how quiet my 107 is and void of any sort of engine noises for the most part, hot, cold, high heat, elevation..it's just so smooth and quiet the whole time and just lovin' it..it' was dyno tuned early on with SEPST and SE muffs and AC..extremely impressed as my previous TCs similarly modified sounded like a 30 year old Maytag with gravel in it in comparison..I have been thinking lately since I got the 5 year ESP maybe I should do the SE Stage 2 but just can't convince myself to change anything cuz it runs so damn great
I took mine in this weekend because the clattering valve train noise is driving me crazy. The highly motivated guy as the desk (Yes, HUGE sarcasm there) says "This your first street glide?", Like I should just expect all street glides to rattle like crazy. After 3 hours of going back and forth they basically said its normal and I should just learn to live with an expensive rattling sob. I'm so annoyed with this bike that I don't even want to ride it. I've already put it up for sale in my local craigslist and facebook market place.
If it sells it sells, if it doesn't I'll just keep looking for a fix and try not to hate the bike. Hopefully someone comes up with a solution, I highly doubt Harley will.
There is no valve lash adjustment on a stock M8 right now. HD has come out with a adjuster on one valve so the pair can be adjusted to Zero lash per rocker arm. But it's a SE part right now.
So, if they know the rockers should be adjustable to compensate for unequal valve stem lengths from wear or manufacturing tolerances, which they do, then why the hell don't they just put them in the bikes at the factory to begin with?
I took mine in this weekend because the clattering valve train noise is driving me crazy. The highly motivated guy as the desk (Yes, HUGE sarcasm there) says "This your first street glide?", Like I should just expect all street glides to rattle like crazy. After 3 hours of going back and forth they basically said its normal and I should just learn to live with an expensive rattling sob. I'm so annoyed with this bike that I don't even want to ride it. I've already put it up for sale in my local craigslist and facebook market place.
If it sells it sells, if it doesn't I'll just keep looking for a fix and try not to hate the bike. Hopefully someone comes up with a solution, I highly doubt Harley will.
Adjustable push rods, premium-quality S&S lifters, SE adjustable rockers etc. should quieten it down. About $1000+ (if you do the install yourself) will probably make your brand new bike sound just like you want it to. I don't know what the MoCo charges for the adjustable rockers that should be in these motors from the factory to begin with, but at their ripoff pricing, the job could cost considerably more.
I did the above to my Rushmore, less the rockers, to make it stop sounding like a rattling POS.
Welcome to "The Harley Lifestyle", Bro.
Last edited by jpooch00; Aug 13, 2018 at 07:55 AM.
I took mine in this weekend because the clattering valve train noise is driving me crazy. The highly motivated guy as the desk (Yes, HUGE sarcasm there) says "This your first street glide?", Like I should just expect all street glides to rattle like crazy. After 3 hours of going back and forth they basically said its normal and I should just learn to live with an expensive rattling sob. I'm so annoyed with this bike that I don't even want to ride it. I've already put it up for sale in my local craigslist and facebook market place.
If it sells it sells, if it doesn't I'll just keep looking for a fix and try not to hate the bike. Hopefully someone comes up with a solution, I highly doubt Harley will.
I picked my road king from mad river harley last night and the tech just brought my bike out and said here ya go. I'm so pissed I even went there to buy this thing! I didn't test ride ride it because what could possibly go wrong ? 2 year warranty! I could blow up before o got out of the parking lot and Harley would Fix it! No worries! Now I'm stuck with this ticking piece of junk! Guess it will just sit until someone comes yo p with something to fix it ! Its embarrassing that my dunbass paid 20+ grand for a machine that sounds like a shade tree mechanic set the valves with a tooth pick!
I picked my road king from mad river harley last night and the tech just brought my bike out and said here ya go. I'm so pissed I even went there to buy this thing! I didn't test ride ride it because what could possibly go wrong ? 2 year warranty! I could blow up before o got out of the parking lot and Harley would Fix it! No worries! Now I'm stuck with this ticking piece of junk! Guess it will just sit until someone comes yo p with something to fix it ! Its embarrassing that my dunbass paid 20+ grand for a machine that sounds like a shade tree mechanic set the valves with a tooth pick!
Maybe just write this episode off as an expensive learning experience?
Buying ANYTHING from the MoCo is a crap-shoot at best. The more expensive the article is, the more likely it is that you're getting screwed.
That seems to be their business plan, and who could really argue with it? Way over 100 years and they're still at it with absolutely no change in sight.
I picked my road king from mad river harley last night and the tech just brought my bike out and said here ya go. I'm so pissed I even went there to buy this thing! I didn't test ride ride it because what could possibly go wrong ? 2 year warranty! I could blow up before o got out of the parking lot and Harley would Fix it! No worries! Now I'm stuck with this ticking piece of junk! Guess it will just sit until someone comes yo p with something to fix it ! Its embarrassing that my dunbass paid 20+ grand for a machine that sounds like a shade tree mechanic set the valves with a tooth pick!
I had a similar issue with a new 2004 Yamaha Roadstar. It developed an embarrassingly loud engine knock at 300 miles. It sounded like a Cummins Diesel clattering every time I let the clutch out in first gear. Yamaha wouldn't do anything claiming "some air cooled engines sound like that". If I had kept it for a few years, a home-grown fix was eventually found to shim the end of some shaft which drastically reduced the knocking against the engine casing. I didn't wait that long...I found the loudest pipes available for that bike to mask the clatter and traded it.
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