scup33 Posted November 9, 2023 Share Posted November 9, 2023 What is the reason for #3 on below exploded view below? Nothing touches it. It is oil tight. My only guess is that it's some sort of a fancy Honda sound deadening chamber. Is there any reason not to remove it, if one wanted , if so, what is the reason ? ? ? Quote Link to comment Share on other sites More sharing options...
Member Contributer BusyLittleShop Posted November 9, 2023 Member Contributer Share Posted November 9, 2023 Bolt on noise dampener... Quote Link to comment Share on other sites More sharing options...
Member Contributer Captain 80s Posted November 9, 2023 Member Contributer Share Posted November 9, 2023 '86/'87 has one on the Generator side too. Quote Link to comment Share on other sites More sharing options...
scup33 Posted November 10, 2023 Author Share Posted November 10, 2023 Thanks all. Wonder what the engine sounds like with it removed ? ? Gotta try it. Had this thing since new (76,000 miles) with no issues. I decided to check out the clutch specs when I saw the unused disc attached to the side cover. Thanks again, Josh Quote Link to comment Share on other sites More sharing options...
Member Contributer BusyLittleShop Posted November 10, 2023 Member Contributer Share Posted November 10, 2023 You're welcome... but it is designed to dampen clutch knock not engine sound... Quote Link to comment Share on other sites More sharing options...
Member Contributer Captain 80s Posted November 10, 2023 Member Contributer Share Posted November 10, 2023 9 hours ago, BusyLittleShop said: You're welcome... but it is designed to dampen clutch knock not engine sound... Then why do my 86s have them on the Left side too? Generator knock? Honestly, I don't think they can discriminate which sound they might be dampening. 11 hours ago, scup33 said: Thanks all. Wonder what the engine sounds like with it removed ? ? Gotta try it. Had this thing since new (76,000 miles) with no issues. I decided to check out the clutch specs when I saw the unused disc attached to the side cover. Thanks again, Josh When I swapped frames on the RC26 I prepped another engine and harness to have a head start before swapping components. Original engine I left them out, new one had them intact. I really couldn't tell a difference. Quote Link to comment Share on other sites More sharing options...
Member Contributer Terry Posted November 10, 2023 Member Contributer Share Posted November 10, 2023 My guess is those are harmonic dampers to reduce the cases from resonating. Gotta love the smoothness that Honda worked so hard to deliver. Quote Link to comment Share on other sites More sharing options...
Member Contributer Captain 80s Posted November 10, 2023 Member Contributer Share Posted November 10, 2023 This is gonna turn into an oil or tire thread I can feel it... but... You have an overall (db) limit to stay under for the bike to pass EPA (or equivalent) requirements. ANYTHING you can do to save some noise can be spent elsewhere and the loud gear drives are eating up a bunch. You can then "spend" some (db) on things like intake and exhaust to help make the power you want. It's also part of the reason they put in heavy spring loaded split gears on the cams. No spring loaded gears here: 2 Quote Link to comment Share on other sites More sharing options...
Member Contributer jefferson Posted November 11, 2023 Member Contributer Share Posted November 11, 2023 Those things went missing on several bikes I own. Just weight that's not needed and no discernible noise increase, unless you were using a sensitive instrument to measure with. 4 hours ago, Captain 80s said: This is gonna turn into an oil or tire thread I can feel it... but... You have an overall (db) limit to stay under for the bike to pass EPA (or equivalent) requirements. ANYTHING you can do to save some noise can be spent elsewhere and the loud gear drives are eating up a bunch. You can then "spend" some (db) on things like intake and exhaust to help make the power you want. It's also part of the reason they put in heavy spring loaded split gears on the cams. No spring loaded gears here: If I ever get into the engine on mine those gears won't be spring loaded afterwards. Quote Link to comment Share on other sites More sharing options...
Member Contributer Dutchy Posted November 11, 2023 Member Contributer Share Posted November 11, 2023 10 hours ago, Captain 80s said: 1 1 Quote Link to comment Share on other sites More sharing options...
Member Contributer bmart Posted November 11, 2023 Member Contributer Share Posted November 11, 2023 Megaforce was a terrible movie, but it did have flying motorcycles in it. And the 707 song. That's something. Quote Link to comment Share on other sites More sharing options...
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