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#2079 fireman135 (User) Fresh Boarder Posts: 4 road star knock 7 Years, 1 Month ago   I know I'm beating a dead horse but does anybody have a suggestion on getting rind of the knock.i know ken the mucker sexton was working on a shim.does anybody know how to get in touch with him? thanks   Logged     The administrator has disabled public write access. #2080 Bucardo (User) Fresh Boarder Posts: 42 Re:road star knock 7 Years, 1 Month ago   Ken regularly posts on the RSR forum. Find one of his posts and e-mail him direct. I think his shim solution addresses generator end play &quot;knock&quot;, but I also think some &quot;knock&quot; can be caused by lean conditions, escpecially at low rpm/high load. A motor approaching/hitting detonation can not only rattle valves (pinging), but really shake motor internals IMHO. A quick test is to &quot;hold&quot; the rpm/load conditions and pull the choke a little next time you hear it. If it goes away, whichever circuit you're carb is working is probably lean or timing could be off. Jim   Logged     The administrator has disabled public write access. #2083 CRASH (User) Junior Boarder Posts: 184 Re:road star knock 7 Years, 1 Month ago   I fixed my knock with a set of Hard Krome 3&quot; Dual Side Burners. Put the stock pipes on and it came back ... I think it must be pipe related. <br><br>Post edited by: CRASH, at: 2005/04/21 12:03   Logged     - - - - - - - - - - - - - - - - - - - - - - - - - CRASH Visit my Hellriser Garage and check out my bike!   The administrator has disabled public write access. #2086 Flatpockets (User) Fresh Boarder Posts: 37 Re:road star knock 7 Years, 1 Month ago   Just talked to Yamaha Corp. in California.Told them about the knock getting louder in my 2004 Silverado.It is now so loud that my buddy riding beside me on a 1200 sportster with screaming eagle straight pipes asked me what that noise was.Yamaha corporate told me to go back to the dealer and tell them my problem again,last time in they said the noise was normal and the all do it.Now I am not real mechanical but I dont believe that my engine should be heard over the roar of two big bikes at 70 miles an hour.I really love this bike but am having a rotten time trying to get some satisfaction.Has anyone else had any luck getting anywhere with Yamaha or their local dealer on this matter?   Logged     The administrator has disabled public write access. #2090 fireman135 (User) Fresh Boarder Posts: 4 Re:road star knock 7 Years, 1 Month ago   Flatpockets I have tried with yamaha and got the same answer.I am so pissed I'm thinking of getting rid of the bike.Yamaha refuses to deal with this issue in any way.   Logged     The administrator has disabled public write access. #2093 kahuna (User) Fresh Boarder Posts: 8 Re:road star knock 7 Years, 1 Month ago   I have the 04 Silverado knock. I have read about everything concerning the cause. I don't agree that it is a shim problem relating to the generator shaft. I believe that the knock is definitely in the cylinder. The reasons are, the knock is absent until the motor is warmed up. The knock occurs during power/on throttle, but subsides when backing off. I have some experience with engines and this knock sound like a wrist pin, rod bearing, or piston slap. An independent cycle mechanic agreed that it sounds like a piston slap. I haven't called Yamaha, but will be doing so. If I don't get the right answers from yamaha I am willing to go public in a big way. Any one out there willing to join in? Kahuna   Logged     The administrator has disabled public write access. #2094 kahuna (User) Fresh Boarder Posts: 8 Re:road star knock 7 Years, 1 Month ago   I'm back and I have a thought. Would those of you 04 R* owners with &quot;THE KNOCK&quot; be willing to send /e-mail me the Vin# and date of Manufacture of your scoots. I want to see if there is a pattern before I call Yamaha. The more info I have the better to COMMUNICATE. kenalburd@comcast.net Kahuna   Logged     The administrator has disabled public write access. #2108 fireman135 (User) Fresh Boarder Posts: 4 Re:road star knock 7 Years, 1 Month ago   I would in a minute.I have already had the district service rep. look at my bike and he says its normal and there have been no engine failures due to the knock.Normal my ass.   Logged     The administrator has disabled public write access. #2132 VickK (User) Roadies ROCK ! Fresh Boarder Posts: 60 Re:road star knock 7 Years ago   Hey Guys. My 04 doesn't knock at least not so far. Have you guys had the issue since day 1 o did it show up after time? The reason I ask is I had the carb cough problem since new and got the same story from Yamaha and had to take legal action. Just wondering if they all start to knock eventually or is it isolated. Good luck and hope you guys get satifaction from Yamaha.   Logged     I love my Hardley Davidson!   The administrator has disabled public write access. #2146 fireman135 (User) Fresh Boarder Posts: 4 Re:road star knock 7 Years ago   Vickki mine started around 500 miles or so .What kind of reaction did you get from yamaha when you filed legal action???   Logged     The administrator has disabled public write access.

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