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After much research and investigation, I changed from HD Syn3 to Amsoil 20W-50 in all 3 compartments of my Ultra earlier this summer. At the same time I replaced my rear tire by myself for the first time. After getting back on the road I started to hear a high whinning noise coming from what sounded like the back end of the bike when I rode at 50+ mph speeds. Over the next few weeks I paid special attention to the sound to see if I could pin-point exactly what was causing the sound. It sounded like the drive belt was rubbing against the belt guard.
When I finally got time to put the bike up on my lift, I found there was no wear on the belt guard... and I was stumped. Still continued to ride, and still had the sound. Then recently I read an article about oil in American Iron, and it made a comment about whinning sounds coming from the transmission if the oil is too thin/light/wrong. It was like I got hit in the head with a rock...immediately I thought about the new oil I'd put into the tranny. It had never crossed my mind that it might be the oil, all along I thought it was somehow tied to me pulling off the rear wheel and perhaps not putting it back on exactly correct. Now I'm wondering if I shouldn't be running the Amsoil 20W-50 in the tranny, but perhaps using something a little heavier or a different brand.
Anyone experienced this?? I don't think that it's so much an Amsoil problem as it is perhaps just the wrong grade of oil. Any thoughts from anyone? George?
I ride an 03 ElectraGlide Ultra. Thanks for your comments.
When I finally got time to put the bike up on my lift, I found there was no wear on the belt guard... and I was stumped. Still continued to ride, and still had the sound. Then recently I read an article about oil in American Iron, and it made a comment about whinning sounds coming from the transmission if the oil is too thin/light/wrong. It was like I got hit in the head with a rock...immediately I thought about the new oil I'd put into the tranny. It had never crossed my mind that it might be the oil, all along I thought it was somehow tied to me pulling off the rear wheel and perhaps not putting it back on exactly correct. Now I'm wondering if I shouldn't be running the Amsoil 20W-50 in the tranny, but perhaps using something a little heavier or a different brand.
Anyone experienced this?? I don't think that it's so much an Amsoil problem as it is perhaps just the wrong grade of oil. Any thoughts from anyone? George?
I ride an 03 ElectraGlide Ultra. Thanks for your comments.