Member Contributer flya750 Posted May 14, 2021 Member Contributer Share Posted May 14, 2021 Link to comment Share on other sites More sharing options...
Member Contributer Grum Posted May 15, 2021 Member Contributer Share Posted May 15, 2021 Hey flya750. Thanks for the grand tour of your beautiful home area, assume its your home town? Bike sounds awesome, but am I hearing some form of transmission whine, most noticeable on decel or coasting? Just doesn't sound normal to me, perhaps its the camera mic, or where its positioned, or my ageing ears! You haven't done a 5gen gear driven cam mod by any chance....? Seems to be fairly noticeable from around 8:10 mins in. Just wondering! Link to comment Share on other sites More sharing options...
Member Contributer ShipFixer Posted May 15, 2021 Member Contributer Share Posted May 15, 2021 Sounded like wind whistle to me… Makes me want to skip my other projects and accelerate installing my headers, thanks for posting! Link to comment Share on other sites More sharing options...
Member Contributer flya750 Posted May 16, 2021 Author Member Contributer Share Posted May 16, 2021 On 5/14/2021 at 8:52 PM, Grum said: Hey flya750. Thanks for the grand tour of your beautiful home area, assume its your home town? Bike sounds awesome, but am I hearing some form of transmission whine, most noticeable on decel or coasting? Just doesn't sound normal to me, perhaps its the camera mic, or where its positioned, or my ageing ears! You haven't done a 5gen gear driven cam mod by any chance....? Seems to be fairly noticeable from around 8:10 mins in. Just wondering! Are you sure you're not talking about the chain whine? Sometimes, when in two valve mode, the engine is so quiet, you hear more chain and sprocket noise/whine. (@ the 8:10 mark, I'm in two valve mode doing about 80 mph... so, to me, it just sounds like the chain/sprocket noise) There is also a vibration noise at certain RPM's which is the rear trunk latch still vibrating despite my little electrical tape mod to quiet it. My tape mod made a big difference, but there is still some vibration from the trunk latch I need to sort out. The mic is positioned inside the tail section, just in front of the rear tail light. It hears everything, even when a rock kicks up and hits the under fender. I'm using a Zoom H1N audio recorder. Link to comment Share on other sites More sharing options...
Member Contributer Grum Posted May 16, 2021 Member Contributer Share Posted May 16, 2021 12 minutes ago, flya750 said: Are you sure you're not talking about the chain whine? Sometimes, when in two valve mode, the engine is so quiet, you hear more chain and sprocket noise/whine. You might be right, given where the camera is mounted it could well be just the chain/sprocket whine as its definitely directly related to the speed your going at. Just thought there might be something a little sinister going on with the transmission, glad it appears there isn't. Nice exhaust sound and very well performing 8gen. Cheers. Link to comment Share on other sites More sharing options...
Member Contributer flya750 Posted May 16, 2021 Author Member Contributer Share Posted May 16, 2021 5 minutes ago, Grum said: You might be right, given where the camera is mounted it could well be just the chain/sprocket whine as its definitely directly related to the speed your going at. Just thought there might be something a little sinister going on with the transmission, glad it appears there isn't. Nice exhaust sound and very well performing 8gen. Cheers. Thanks! Not sure if you watched the very end of the video, but I pass a few cars and I could have never passed with so much confidence before the VFR Headers and Attack Performance Tune. Gas mileage continues to suck though... LOL! No worries for me... Link to comment Share on other sites More sharing options...
Member Contributer Grum Posted May 16, 2021 Member Contributer Share Posted May 16, 2021 17 minutes ago, flya750 said: Thanks! Not sure if you watched the very end of the video, but I pass a few cars and I could have never passed with so much confidence before the VFR Headers and Attack Performance Tune. Gas mileage continues to suck though... LOL! No worries for me... Sure did. "Faster than a speeding bullet". Cheers. Link to comment Share on other sites More sharing options...
Member Contributer Grum Posted May 17, 2021 Member Contributer Share Posted May 17, 2021 On 5/16/2021 at 2:28 PM, flya750 said: Are you sure you're not talking about the chain whine? Sometimes, when in two valve mode, the engine is so quiet, you hear more chain and sprocket noise/whine. (@ the 8:10 mark, I'm in two valve mode doing about 80 mph... so, to me, it just sounds like the chain/sprocket noise) Might pay to check the chain tension, you may have it too tight. Needs to be per spec or slightly loose, but never tighter. Worth a check. Link to comment Share on other sites More sharing options...
Member Contributer flya750 Posted May 22, 2021 Author Member Contributer Share Posted May 22, 2021 On 5/17/2021 at 4:44 PM, Grum said: Might pay to check the chain tension, you may have it too tight. Needs to be per spec or slightly loose, but never tighter. Worth a check. I looked at the chain and I had it about spec? Maybe a tad tight? I loosened it a bit and will see what audio I pick up? Link to comment Share on other sites More sharing options...
Member Contributer flya750 Posted May 25, 2021 Author Member Contributer Share Posted May 25, 2021 On 5/17/2021 at 4:44 PM, Grum said: Might pay to check the chain tension, you may have it too tight. Needs to be per spec or slightly loose, but never tighter. Worth a check. Well, I loosened my chain a bit and the whine is still there. No 5G gear driven cam kit install, but I did add a radiator to each side of my 8G to help with my cornering.. (LMAO! Sorry, I couldn't resist.) My audio recorder is a high a quality recorder, I'm sure it picks up more than the average action camera picks up? The whine is real....sounds like sprocket/chain action to me? Link to comment Share on other sites More sharing options...
Kiwiwannafly Posted May 26, 2021 Share Posted May 26, 2021 Have a real close look at each chain link, especially the 'master' link. I had issues with a badly worn master link pin and the corresponding roller it inserted through. Very flattened & worn out O ring = lack of lube = big wear = weird chain/sprocket sounds and chain tensioning was impossible. Too tight at one spot, too loose at another. Was an easy fix - new chain. Link to comment Share on other sites More sharing options...
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