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Sportster Motorcycle - Bottom End Cams, Cases, Gears, Flywheel, Piston Conecting Rods, Oil Pump, etc...

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  #1  
Old 5th July 2007
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Unhappy After a week of twisties...clack clack clack..what's that noise?

I jsut got home from a 6000 mile trip from Chicago to LA and back.
In between were a world of twisties, mountains, searing desert, hills, and some city driving.

When I got to LA for an oil change, I asked the dealer service guys to get their best ear out and listen to the clackety noise that was coming from the engine.

They thought a piston was "slapping" and wanted to rip apart my engine, and ship my bike back to Chicago for $800 a few weeks later.
I said no thanks, I'd rather be stranded in the desert. Thank God that didn't happen, but I did baby it back home along interstate for 2400 miles, sticking to a sweet spot around 3100 RPM with minimal noise. But just stopping for gas would make me cringe since I had to hear that noise while taking off everytime.

Any clue what might be happening? It's an '04 with (now) only 18000 miles.
My dad seemed to think I may have been lazy and lugging 5th/4th gear to much in the mountain climbs......

Rather than take it to a dealer, I think I found someone that builds custom Harleys from the ground up/boring specialist, etc. They would be more attuned to getting to the source of the problem, no?
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  #2  
Old 6th July 2007
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chrishajer chrishajer is offline
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If you're in Chicago, I can listen to it for you. You really need someone to listen to it, but if it turns out it needs to come apart, what are you going to do? If you're not going to fix it yourself, then you should let the shop that is going to fix it listen to it.

--Chris
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  #3  
Old 6th July 2007
go2fast go2fast is offline
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i had same noise ...called my indy he told me not to ride bike but trailer it over.loose main sprocket shaft nut. evidently this is a not so uncomman problem.in 05 tourqe specs were increased to 240-260 ft. lbs from 190. red loctite also. if you lose that nut you will have some serious problems.good luck..
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Old 6th July 2007
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I would also check you primary chain adjustment. Mine has been really loose after flogging the bike and it would hit the primary case and clakity clak. Does it do it all the time or at a particular idle level?
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Spoiled but definitely not rotten. Started life as a black 1993, 1200 Now-1218, Home ported 2009 FI heads, Andrews N6 cams, Dyna2Ki, JMC aluminum swingarm, Chainsikle custom mid forward controls, GBC inverted front end, 3 degree wide-glide trees and 5 degree raked cups. 18x3.5 fatspoke rear with 150/60 and 21x3.5 with 120/70.
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  #5  
Old 6th July 2007
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Well, I rode 2400 easy interstate miles back from LA and I don't believe it got much worse. There is a little vibration increase. Because the windshield channeled noise back at me, and the wind make your ears ring while sleeping, I had plugs in religiously and the noise is apparent in all but the 3200/66 mph cruising speed regardless.

Oh, yeah it happens even at idle standing still, neutral etc.
I found a custom build shop in Palatine thru someone I know so I'm waiting to get contact info to bring it over there. I'm not looking for a deal, I'm just looking for a square deal.

Thanks for the offer Chris, unless you're around the Lakeview area where I keep it I wouldn't want to waste anyone's time since I'm going to bring it in somewhere anyway.

I'm just trying to guestimate how serious it is since I'd like to get it fixed, sell it with all its upgrades and upgrade to a low-miles Springer Classic!
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