08superglide engine clatter
Supporter
Joined: Jan 2007
Posts: 15,787
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From: along the shore of Mishigami
Like others have mentioned check your oil level, could be starving your lifters for oil/oil pressure. Have you recently installed a windshield? If so, there will be dead air right in front of you to the windshield and you WILL notice more engine noises. Are you close enough the dealer can pick it up to go over it?
Seasoned HDF Member
Joined: Jun 2007
Posts: 5,763
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From: North of Hell, South of Heaven
Syn actually quieted my bike down. This is the first instance I've heard where it didn't.
Elite HDF Member
Joined: Aug 2006
Posts: 3,863
Likes: 21
From: Kennewick, WA
You need to be carefull with fuel additives, some can crap up the o2 sensors. I'm not familiar with NOS octane boost but if it's labeled for fuel injection you should be good.
Road Warrior
Joined: Sep 2008
Posts: 1,318
Likes: 54
From: Texas Panhandle
https://www.hdforums.com/forum/oil-a...synthetic.html
and another:
https://www.hdforums.com/forum/oil-a...ine-noise.html
Do a search, there are plenty. On here as well as the entire 'net. I first switched to Syn3, and it was horrible. Then went with Amsoil, Red Line & Mobil 1 V-Twin, all with better results, but still with unacceptable amounts of top end noise. Finally switched back to dino oil, and noise is "normal".
One does have to remember that these engines are not technological wonders of advanced engineering, and are going to make noise. My lawn mower is more high tech than these things are.
Last edited by Not E'nuff Harley; Dec 6, 2009 at 10:43 AM.
Road Master
Joined: Nov 2006
Posts: 1,164
Likes: 401
From: Port Coquitlam B.C.
Well then. here's another instance for ya':
https://www.hdforums.com/forum/oil-a...synthetic.html
and another:
https://www.hdforums.com/forum/oil-a...ine-noise.html
Do a search, there are plenty. On here as well as the entire 'net. I first switched to Syn3, and it was horrible. Then went with Amsoil, Red Line & Mobil 1 V-Twin, all with better results, but still with unacceptable amounts of top end noise. Finally switched back to dino oil, and noise is "normal".
One does have to remember that these engines are not technological wonders of advanced engineering, and are going to make noise. My lawn mower is more high tech than these things are.
https://www.hdforums.com/forum/oil-a...synthetic.html
and another:
https://www.hdforums.com/forum/oil-a...ine-noise.html
Do a search, there are plenty. On here as well as the entire 'net. I first switched to Syn3, and it was horrible. Then went with Amsoil, Red Line & Mobil 1 V-Twin, all with better results, but still with unacceptable amounts of top end noise. Finally switched back to dino oil, and noise is "normal".
One does have to remember that these engines are not technological wonders of advanced engineering, and are going to make noise. My lawn mower is more high tech than these things are.
Last edited by PoCoBob; Dec 6, 2009 at 08:20 PM. Reason: spelling, as usual
Outstanding HDF Member
Joined: Mar 2008
Posts: 2,456
Likes: 11
From: PacNW; Beacon of Conservatism in a Sea of Liberals.......AZ Snowbird; Just another Conservative
I don't notice any with my 88" WG, but I notice a fair amount of clatter with the 96" Road King I just resurrected. There's a lot of "clatter-talk" on the Touring forum; seems to be more common there, and a lot of folks blame the compensator. Mine is most noticeable under medium acceleration. If you can rule out octane/detonation, you probably don't have anything to worry about.