Question about Harley Davidson FXDCI Dyna Super Glide Custom Motorcycles

1 Answer

How much oil to add in the primary 2000 88 twin cam

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,565 Answers

The book says 36-44 ounces. That's a pretty large range. Too much oil will cause your clutch to drag making it impossible to find neutral with the engine running.

Here's what I do. Stand the bike straight up with the derby cover off, that's where you add the oil. Look at the clutch assembly. It mostly made of bright colored aluminum. Inside is a round spring that is usually darker in color. Fill the primary to just below the lowest point of this spring. Do not overfill. As long as you've got enough oil for the starter ring gear to sling the oil around in the primary, you've got enough oil.

Good Luck

Posted on Sep 14, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Oil has gotten to my stater and has ran out of the stater plug, How can I fix it

If it is just leaking a little, remove the primary cover. Push the stator plug into the primary housing. Clean the plug and hole it goes into with brake cleaner. Apply black silicone to the outside of the stator plug and push back into the hole. Replace the primary cover, and after the silicone is dry, refill the primary. If oil is leaking alot, and the bike is a Twin Cam, check to make sure vent hose on the trans top cover isn't plugged. Twin Cam primaries vent through the trans and if the vent hose is plugged, oil will be under pressure in the primary and force itself out around the stator plug.

Jul 31, 2012 | Harley Davidson FLHR-FLHRI Road king...

1 Answer

My primary casing is very hot. What could be the reason?

The primary case will get hot as there are moving parts inside and it is directly connected to the engine. Check the oil level in your primary. Since you didn't tell me what year and model bike you have, stand the bike straight up. If it's a Big Twin, remove the round derby cover from the back end of the primary and look at the oil level inside. It should be just up to the bottom edge of the clutch outer drum. In the case of a Sportster, simply drain the primary by removing the drain plug under the lower backside of the primary. Remove the small round inspection cover at the top side of the primary cover and add one quart of oil.

Good Luck

Aug 25, 2011 | Harley Davidson FLSTN- FLSTNI Softail...

1 Answer

How many oil drain plugs on a 2001 FXD and what other fluids should be changed when doing an oil change?

I'm not a Twin Cam mechanic but I think there are two oil drains on the bottom of the transmission. The oil tank for your bike is on the bottom of the transmission. It looks like there is a drain on the bottom of the pan and one on the front. The oil should be changed every 3000 miles if you're using petroleum based oil. Synthetic oil can go a bit longer. The primary oil and transmission oil should be changed every 5000 miles or so. The primary drains from a pipe plug underneath the primary back near the rear of gearcase. The transmission drains from a plug underneath.

Good Luck

Jun 28, 2011 | 2001 Harley Davidson FXD Dyna Super Glide

1 Answer

I have a 2004 xl883 converted to 1200 need to change the fluids. does the transmission and the primary use the motor oil that you are putting in bike or is it differant. and when you drain oil and...

You engine uses three quarts of 20W50 oil. The primary and transmission share the same oil and it uses about a quart of oil. One the late model Big Twins, you can use H-D's Syn 3 in all areas. Not sure about the Sportster. I've always used the H-D primary/transmission lubricant for Sportsters. If you wish to use any other brand of lubricant, you need to go to their website and check to see what they say use in what area. Some of the other popular lubricants are Amsoil, Royal Purple, Mobil V-Twin, and Red Line.

Good Luck

Jun 26, 2011 | Harley Davidson XL Sportster 883...

1 Answer

How much oil does the primary case hold on a 2000 harley fatboy 88 twin cam

It should hold between 36 and 44 ounces. Stand the bike as straight up as you can and still be safe. Remove the derby cover and drain the old oil. Refill the primary with oil until the oil level is right at the bottom of the outer clutch drum. If you fill it too high, your clutch will drag and you' will not be able to find neutral with the engine running.

Good Luck

Jun 18, 2011 | 2000 Harley Davidson FLSTF Fat boy

1 Answer

In my first attempt to change my engine oil, I drained oil from bottom of my 2001 Fatboy, from the plug on the right side towards the front of the engine, just below the Twin Cam Cover and floor board,...

I'm not that familiar with the Twin Cam engine but from what you're saying, Harley has a drain or something in the cam chest of the Twin Cam engine. This is something new for Harley as the previous engines had no means of draining the cam chest. I would imagine that this is what the oil you saw was, oil in the cam chest waiting to be pumped back to the oil tank by the oil pump that is located in the cam chest. When you restart the engine, this area will again fill itself to the proper level.

Good Luck

Mar 22, 2011 | Harley Davidson FLSTFI Fat Boy Motorcycles

1 Answer

Fluid capasities in a 2002 dyna twin cam. oil, trans,primary?

Engine oil - 3 qts
Primary oil - 34-42 oz.
transmission - 20-24 ounces.

The engine oil and the transmission oil both have dipsticks. Maintain the oil levels according to the dipstick indications. Each dipstick has two marks. The top mark represents "FULL HOT" while the lower mark represents "FULL COLD" . Check the engine oil with the bike on the side stand. Check the transmission oil with the bike standing straight up.

On the primary, check or add oil with the bike standing straight up. Do not overfill. The oil level should be no higher than the lowest edge of the clutch spring. If you put too much oil in the primary, the clutch will drag making it impossible to find neutral with the engine running.

Good Luck

Oct 15, 2010 | 2002 Harley Davidson FXD Dyna Super Glide

1 Answer

Level for primary oil required

Well, if depends on which model bike you're talking about, a Big Twin or a Sportster. On the Sportster, simply pour in a quart. Some Sportsters have an "oil level drain hole". A plug either on lower front part of the outer primary or on the rear end of the primary. Take the plug out, fill until oil just starts to run out and stop.

On the Big Twins, remove the derby cover, stand the bike straight up, and fill until the oil level just barely touches the lowest part of the clutch spring. The spring is a round spring that is usually darker in color than the surrounding aluminum clutch drum. Do not overfill as this will make your clutch drag and you will not be able to get your bike into neutral with the engine running. Depending on year and model the primary will take anywhere between 36-44 ounces of oil.

Good Luck

Sep 19, 2010 | Harley Davidson FXD Dyna Super Glide...

1 Answer

On my 2003 fat boy all oil from tank is in engine and won't return whats the cause ? runs real rough

Ok, I'm not exactly sure what the problem is on your Twin Cam but I can assure you that it is oil pump related. One the earlier models with the external pump, you had two pumps in one body. One pump was a "feed" pump that pumped oil into the engine. The other pump was a "scavenger" pump that pumped oil out of the engine back to the tank.

When Harley designed the Twin Cam engine, they employed a better design of pump inside the engine. It's located in the gear case along with the cams. I do not know too much about the Twin Cam engine as I specialize on the older Evolution, Shovelhead, and Panhead engnes. The older engines had a breather gear that used the crankcase pressure built up inside the engne to blow the oil from the crankcase into the gear case. I don't know if the Twin Cam still uses that method of getting the oil out of the crankcase and into the gear case.

So, with my limited knowledge of the oil pump on the Twin Cam, I'd say that this is the problem. You need to find someone that is familiar with the construction of the pump. It may be that the entire pump is bad or something as simple as a sheared pin.

Good Luck

May 30, 2010 | 2003 Harley Davidson FLSTF Fat boy

1 Answer

Hello I have a 1999 Harley Fatboy and I need to know if the same three Oil Compartments explained by the CycleSurgeon apply to my 99 as well. Also, the dealership sold me a high grade synthetic oil and...

Yes, your '99 Fatboy, has the last of the Evo engines in it. They didn't come out with the Twin Cam 88 B engine until 2000. Still, you have three oil compartments, the engine, the primary, and the transmission.

And yes, you can run the H-D Syn3 oil in all three compartments. The engine holds three quarts, the primary holds about a quart (fill to the bottom of the outer clutch drum), and the transmission uses 20-24 ounces.

I hope this answers your questions.

Feb 08, 2010 | 1993 Harley Davidson FLSTF Fat boy

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

139 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Gills Lango

Level 2 Expert

195 Answers


Level 3 Expert

4336 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides