Question about 2000 Harley Davidson FLHTCUI Electra Glide Ultra Classic

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Compensator sprocket will the compensator if it goes bad, make a lot of noise, when trying to start the bike?

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It could, as it works not unlike a ratchet when under too much load.
To get an idea, look at this pic:
The "Vee" shaped "teeth" are design to "jump" over each other under excessive load, controlled by spring pressure.
If the spring or "Vee teeth" are excessively worn, you could hear the "ratcheting" sound.

Posted on Jul 24, 2013

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Engine developed a bad vibration, can this be the compensator sprocket

I would check all the motor mounts. A loose compensator sprocket would give a knocking noise more than a vibration.

Jun 28, 2014 | 2001 Harley Davidson FLHT Electra Glide...

1 Answer

What kind of a noice can I ear if the compensator sprocket is faulty?

I can tell you from experience it would be clunking and or clanging.
I also know that HD has fixed this problem by changing the compensator assembly. The new assembly now has a bearing.
I have an 80 FLHTCUI and the part number is 40100061. Not sure if it would be the same for you, but it very may well be.

If yours is bad, I would not recommend putting the same assembly back in. That's it if they still sell the compensating sprocket assembly for your bike and want to sell you the same unit, I would decline and go with the replacement unit with the bearing. Again for me the part is Screamin' Eagle Big Twin Compensator. part number 40100061.

Hope this helps.

May 07, 2014 | Harley Davidson FLHTCUI Electra Glide...

1 Answer

When i try to start it i can see the chain turn but i have on compression.. if i pull the spark plugs there is compression until i put my fingers over the holes it losses compression. its like it has...

Check for loose compensating sprocket. Any strange noises when cranking? Most unlikely but could be loose/sheared half-shaft on crankshaft. Also damaged splines on compensating sprocket. Strip and inspect.

Sep 30, 2013 | 2004 Harley Davidson FLSTF - FLSTFI Fat...

1 Answer

Hiya I have noise in the front left hand primary cover [knocking noise] Sometimes it goes away when I pull the clutch in and out other than this the bike runs fine and doesn't miss a beat. [Noise...

More than likely, it's either a loose primary chain or possibly the compensator sprocket. If the noise is at idle, this will probably be the case. Now, if the noise occurs when you roll the throttle on but goes away when just cruising, you may have a bottom end problem. If I were you, I'd disconnect the battery and pull the outer primary cover off. Check the torque on the compensator nut. It should be torqued to 150-165 foot pounds of torque. You'll need a "locking bar" to lock the engine and transmission to keep it from turning in order to apply that amount of torque. Check the adjustment of the primary chain. 3/4 to 7/8 inch with the engine cold. When you refill the primary with oil, do it with the bike standing straight up. Fill to the bottom edge of the outer clutch shell, the bright aluminum part.

Good Luck

May 22, 2011 | 2003 Harley Davidson FXSTB Night Train

1 Answer

Torque specs on 69 shovelhead compensated sprocket? Installed it and not functioning? I have been told it has to be torqued down AND THEN backed off?? Can you help? Please and thank you

I don't understand what you mean by it's not functioning? The spring is far to strong for you to operate it by hand. Now, in 1969, there were two types of compensator sprockets used. One was the conventional type with a spring cup that had "spring washers" inside of it and used a standard size socket to put the nut on with. The other used a coil spring and used a special tool called a "Pin wrench" to put the nut on and off with. They simply torqued to 100 foot pounds of torque.

Now make sure you have the compensator assembled correctly. Go here to see the two types of compensator sprockets. The 1969 was a "transition year" bike and there are lots of variations that appear on this model year.


Good Luck

Apr 27, 2011 | Harley Davidson FLHT Electra Glide...

1 Answer

In all gears, back lash from drive pully rattleing sound on engine compersion strokes

Which drive pulley? If you are referring to the engine drive pulley, I'd drain the primary and remove the outer primary and check the compensator sprocket. Check the nut on the compensator. I would tell you what the torque rating is but I don't know what year model bike we're talking here. Please advise me of where the noise is coming from and the model of bike we're working on.

Good Luck

Aug 21, 2010 | Harley Davidson XL 1200 C Sportster Custom...

1 Answer

On the left hand side of my bike behind the covers of i think gear box starting to make a nasty noiseits a year 2000 night train model

Well, you didn't tell me under what circumstances it makes the noise so I'm going to assume it makes the noise constantly or pretty near so.

There are several things that can cause this. The primary chain needing adjusting is the most common. If it gets too loose, it will run the inside of the case at the top front. To check the tension, remove the oval inspection cover. The top run of the chain should have 5/8" to 7/8" up and down play in the middle of the run. To adjust, loosen the nut on the shoe and move it up or down.

Also the sprocket shaft nut that holds the compensator sprocket on could have come loose. This nut requires quite a lot of torque and if someone has worked on it and didn't get it tight enough, I've seen them come loose and the nut rubs on the inside of the outer cover. Drain the oil in the primay and pull the outer cover off. If the nut is loose, remove it and put two lines of Loctite #271 (red) in the nut and retighten the nut to 150-165 foot pounds of torque. You must have a way to lock the primary up and keep the engine from turning to get this much torque on the nut. We use what is known as a locking bar that fits in the sprocket teeth of both the compensator sprocket and the clutch hub.

The other thing is not enough oil in the primay. It should have between 36-42 ounces of oil in the primary.

Good Luck

Jul 25, 2010 | 2000 Harley Davidson FXST Softail Standard

1 Answer

Excessive noise in primary,probable causes?

When is the last time you checked the adjustment of your primary chain? It should be adjusted to where you have 3/4 to 7/8 inch up and down play when checked in the middle of the upper section of the chain when COLD. I like to set the chain at the 3/4 inch setting if possible. As the engine/transmission heats up, the chain will tighten up. If the chain is too loose, it will rub the top of the inside of the inner primary cover when you back off on the throttle.

Also, you didn't say how many miles your bike has on it. You could need to replace the nylon shoe on the primary chain adjuster mechanism if it's worn badly. Also, I've seen a lot of spring cups on the compensator sprocket go bad. Remove the outer primary cover and try to turn this cup with you hands. If you can turn it by hand, you probably need to replace it. This will make a "clop, clop, clop" type noise when idling. While in the primary, check the torque on the engine sprocket nut. It should be 150-165 foot pounds. You will need a primary locking tool to check this as the engine will turn over before you reach that torque level.

Feb 09, 2010 | 2003 Harley Davidson FLHT Electra Glide...

1 Answer

Have noise in front of primary only with passenger on bike in second gear knocking clattering sound from

Sound like a loose Compensator nut.

The compensator nut is the part (the nut) that attaches the front sprocket to the motor crank.

When a cylinder of a v-twin fires there is a very strong power pulse. To keep from shaking the bike and rider apart these pulses have to be "smoothed" out. Harley does this by NOT solidly attaching the front sprocket to the engine - they use a "compensating sprocket".

A crank shaft extension, double sprocket, sliding cam, and a stiff spring together form a "compensating sprocket". When a cylinder fires, the power stroke is smoothed out by the action of the compensator cam and springs.

The compensator nut is what holds the compensating sprocket assembly on the crank.

There are a LOT of forces acting on this nut and sometimes the nut loosens up. A loose compensator nut results in a compensating sprocket that can move laterally on the crank. A loose compensator nut therefore is one potential source of engine vibration.

Harley-Davidson issued service bulletin a while back that changed the procedure for tightening the compensator nut, after a spate of bikes had problems with this nut working loose.

Check with your local Dealer to get the correct torque spec and procedure for your year bike.

Mar 23, 2009 | 2003 Harley Davidson FXDWG Dyna Wide Glide

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