| Author |
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Rogue_biker
| | Posted on Tuesday, September 06, 2011 - 05:56 pm: | 
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Mine sounds like a Ducati without the clutch rattle. Go figure. I only hear the valve clatter when I put my head next to the engine as it idles. Most engines are like that though. Since there is no fairing to cover the noise, it's more pronounced. |
Fast1075
| | Posted on Tuesday, September 06, 2011 - 06:22 pm: |
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They COULD have designed the motor with a completely chain driven cam setup...and used helical gears to make everything whisper quiet...the existing setup is like it is for one reason...it is strong and durable..
Reminds me of my old shoebox.. ('66 Chevy II) with an M-22 transmission...my buddy says "dern transmission is noisy, mine don't make that kind of noise" I explained that his M-21 had helical gears...I stopped, put it in first, revved to 5500 and sidestepped the clutch...when we stopped..i told him "If you try that with yours, you'll need a broom and a bag of oil dry"  |
Jdugger
| | Posted on Tuesday, September 06, 2011 - 07:06 pm: |
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Racing a Honda 600 and a Buell both, I'll tell you the difference in the transmissions is night and day.
There's a lot of fantastic things to be said about the durability and consistency of the Japanese motors, but that transmission isn't a quarter as nice as the 1125r.
Shifting the 1125r is this incredibly smooth, satisfying, SNICK. You KNOW it's done, it feels smooth as glass, and it's satisfying.
I swear I'm gonna break the shift lever on the Honda one day trying to get feedback. |
Rogue_biker
| | Posted on Wednesday, September 07, 2011 - 11:40 am: |
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I thought the existing Helicon camshaft drive is a hybrid chain/gear drive? It has a chain that drives one cam and that "driven" cam is connected to the other camshaft via helical gears. This was done to make the engine more compact. The source of the valve clatter is from the finger followers. The finger followers make shim adjustment easy as they do not require removal of the camshaft like the ones using shim-under-buckets. Of course to change the shims you need to rotate the motor so they took a major step forward and then two steps back as far as ease of maintenance! LOL!
What they should really have done was use a completely gear driven DOHC like that on Honda's RC51 V-Twin. If any of you remember, that engine sounded absolutely magnificent--the best V-twin sound ever that is better than a piped Ducati at WOT. A gear driven DOHC is way more reliable than a chain driven DOHC. But it is heavier and more expensive to build. Back in the day when Honda's engineers were the best in the world as they stood at the podium of F1 racing year after year, they designed and built the world's best engines. Even their cars had F1 design elements in their chassis and engines. The Honda Accord had gear driven DOHC! The Civic's used upper and lower control arm suspension! Those same engineers have long since retired and Honda lost the edge they once possessed. Now the build the world's most boring cars and motorcycles. |
Duphuckincati
| | Posted on Thursday, September 15, 2011 - 10:39 pm: |
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Well, I finally had a chance to put oil back in the bike, three full quarts of Amsoil 20/50 syn (they are supporting Buell racing so I'll use them) and damned if about 90% of the noise is gone. I had Amsoil in it already, and had added oil to the mid-full mark when cold just to try that and it seemed to maybe help a tiny bit. I really don't think I could have been very low, and the oil only had about 1900 miles on it. I was reluctant to drain it at these low miles but wanted to check the magnet and screen, both of which were clean, so all's well for now. Weird though. |
Craigsmoney
| | Posted on Thursday, September 15, 2011 - 11:39 pm: |
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Chris_motion - When I changed out the HD oil for Amsoil full synthetic the bike quieted down a lot.
I would recommend NOT using a blend and spring for the full synthetic. It's a way better oil. |
Dktechguy112
| | Posted on Friday, September 16, 2011 - 02:09 am: |
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Yeah, I laughed my A$$ off when the dealer told me that the MOCO would void my warranty if they knew I am running Amsoil.
(Message edited by dktechguy112 on September 16, 2011) |
Indy_bueller
| | Posted on Saturday, September 17, 2011 - 12:05 am: |
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Yeah, I laughed my A$$ off when the dealer told me that the MOCO would void my warranty if they knew I am running Amsoil.
Not only that, but it's a violation of the Magnuson-Moss Act to tell their customers any such thing.
The Magnuson-Moss Warranty Act states, in part, in Title 15, United States Code, Section 2302, subdivision (c):
No warrantor of a consumer product may condition his written or implied warranty of such product on the consumer's using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade, or corporate name; except that the prohibition of this subsection may be waived by the [Federal Trade] Commission if —
(1) the warrantor satisfies the Commission that the warranted product will function properly only if the article or service so identified is used in connection with the warranted product, and
(2) the Commission finds that such a waiver is in the public interest. The Commission shall identify in the Federal Register, and permit public comment on, all applications for waiver of the prohibition of this subsection, and shall publish in the Federal Register its disposition of any such application, including the reasons therefore.
Under this federal statute, a manufacturer who issues a warranty on your motor vehicle is prohibited from requiring you to use a service or maintenance item, unless such item is provided, free of charge, under your warranty or unless the Federal Trade Commission (FTC) waives this prohibition against the manufacturer.
Further, under the act, aftermarket equipment that improves performance does not automatically void a vehicle manufacturer's original warranty, unless the warranty clearly states the addition of aftermarket equipment automatically voids your vehicle's warranty, or if it can be proven that the aftermarket device is the direct cause of the failure.}
http://www.dummies.com/how-to/content/keeping-your -mods-warranty-intact.html} |
Indy_bueller
| | Posted on Saturday, September 17, 2011 - 12:08 am: |
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In other words, number one, they have to PROVE to the FTC that the motorcycle will only operate properly with one specific brand of oil. If they do not, but still insist that the customer has to use that one, specific brand of oil, they have to provide it to the customer FOR FREE. |
Dktechguy112
| | Posted on Saturday, September 17, 2011 - 01:58 am: |
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I totally agree, but if I say that to my dealer, then they can tell me harley won't cover it, and i have to take them to court, which takes time and $$$$$.
Its just better to say, oh really, I didn't know that, and swap amosoil when i get home. |
Clutchreaper
| | Posted on Saturday, September 17, 2011 - 06:02 pm: |
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My CR sounds pretty when it is running cold because the exhaust gaskets leak. When it warms up they seal and all is good. |
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