Question about 2008 Buell Lightning XB12Scg

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Water in the transmissions

I took one of the primary access panels on my bike off (the smaller one) and noticed white

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Not light brown but white oil on my primary chain. In my state of panic i immediately drained the vanilla milkshake from my bike and replaced the oil. The bike definitely shifted better and rode smoother. Well i checked the oil about 25miles later and it was still white! So i changed it again. When i called the Buell dealership about it he said its not uncommon for water to get in there. Should I have my transmission flushed and is it true that these transmissions get water in them?Oil is not ment to be in contact with water so it should not be a common thing. If water is getting in there's a gasket leaking. Get the primairycover off, give everything inside a good cleaning and also clean off the edge of the cover.Get some liquid sealer and putt the cover back, add oil, and check again after a ride.,,,

Posted on Nov 10, 2008


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Posted on Jan 02, 2017


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My personal suggestion would be to go for these repair catalogs. I know this website that I used to buy them from,
and they have online it was very good manual. Go ahead, I bet.

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1996 harley softail classic

There's an o-ring between the inner primary and the crankcase, probably bad.

May 14, 2014 | 2004 Harley Davidson Softail Heritage...

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My 03 ultra classic is leaking trans fluid they say its a $1 dollar o ring that cost about $600 to fix?

First off, determine if it's transmission fluid, or primary chain case fluid.
I had the seal on the transmission main shaft go on me once (the seal under the transmission rear drive pulley, behind the inner primary cover).
This can be changed with the transmission still in the bike, but the entire primary needs to come apart, and the transmission sprocket/pulley removed to access it.

If it's primary fluid, it's probably the seal on the inner primary case that the transmission shaft runs through and that the clutch assembly bolts to.
Again, the entire primary needs to be torn down to access this.

Either way, the cost of the part isn't bad, but the labor is the killer, as it's a 6-10 hour job, if I remember the book's quote.

Mar 18, 2014 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

I need 2 do oil changes on my 97 Dyna Low Rider. 1. Type and amount of oil for engine? 2. Type and amount of oil for clutch / transmission? Thanking you. Spy.

Your engine holds three quarts of oil, 20W50 petroleum or synthetic.

Your Primary holds about a quart of oil. Stand the bike straight up and fill up to the lower edge of the outer clutch basket through the derby cover access. Do not overfill or the clutch will drag. H-D primary and transmission lubricant.

Your Transmission holds 20-24 ounces of the same H-D primary and transmission lubricant. Stand the bike up straight, remove the plug from the chrome end on the right side of the transmission that takes a large hex key to remove. Level should be between the lines on the dipstick.

As for what brand of lubricant, there are many of them on the market that are sufficient to do the job. I stick with H-D lubricant for the primary and transmission. I like H-D, Mobil V-Twin, or Amsoil for the engine. Whatever brand you choose, check their website for suitability and their recommendations.

Good Luck

Sep 18, 2011 | Harley Davidson FXDL Dyna Low Rider...

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


Bob, I'll be glad to help. If the plug you took out was at the lowest point of the primary housing on the left side of the bike, you indeed drained the transmission and primary. They are both lubricated with the same oil. You need to put a quart of oil back into the primary through the inspection hole at the top of the primary cover. Use a Harley Davidson recommended fluid.

Now, to drain the oil, look for a large diameter hose that plugs onto the frame somewhere below the battery on the right hands side of the bike. They've usually got one of those hose clamps that take the "hose clamp pliers" to open. This will drain the oil. If you're still not sure, contact me directly at this address. wd4ity at

Good luck and thanks for your service

May 31, 2010 | 2003 Harley Davidson XLH Sportster 883...

1 Answer

Where do you fill the transmission on a 2000 m2 cyclone buell motorcycle

Take cover off where u adjust clutch on primary just follow clutch cable where it enters primary to right 4 bolts get new gasket from harley take off cover below is a drain bolt take out drain old oil put back in get 2 guarts of air,cooled,wet clutch engine oil pour in where u took 4 bolts out of cover stand bike up straight or pour a little then stand bike up to see level where oil is the level should be even with bottom of clutch diaphragm spring the drain plug torque is 14-30 foot pounds of torque remeber bike up straight and the amount of oil for next time use 2 inch hole above shifter with 2 bolts has o-ring do not need to replace ever time drain replace plug torque pour exact amount u poured in primary when u took out the 4 bolts. Use wet clutch oil or u will destroy cluth material inside and u will go no where no exception otherwise have a couple hundred in bank to replace clutch and u can put any kind of oil u want just have other tranportation and not be in A hurry to get anywhere

Apr 29, 2010 | 2001 Buell M2 Cyclone

1 Answer

Leaking water coolant from rear of bike

sounds like a blown head gasket.take it to a repaire shop and have it pressure tested.

Apr 13, 2010 | 1997 kawasaki ZX-6R Ninja

1 Answer

Need to change oiltried to watch video followed instructions did not work

Uh Oh, makes me wonder what did happen.

On the bottom of the transmission, rear part behind the engine, are two drain plugs. The plug that is almost in the center of the oil pan is the transmission oil drain while the drain plug farther to front and on the left of the oil pan is the oil drain plug. If you remove this plug, the engine oil will drain out. Once it is finished draining, replace the plug and tighten.

On the right side of the bike right where the engine and transmission come together is a round cap with knurling on the edge. If you pull up on it, it will come out and has a dipstick attached. Pour three quarts of oil where the plug came from if you changed the filter too. If you didn't change the filter, only pour two quarts and 14 ounces of oil into the tank.

Now start the bike and let it run a few minutes and check the oil level. Notice on the dipstick that there are two full marks. One is FULL COLD and the ohter is FULL HOT. Top the oil off with the bike on the side stand, do not overfill.

If you drained the oil out of the transmission, you can refill it at the chorme end cap on the transmission on the right side of the bike. It has a plug in it that requires a 7/16" hex or allen key to remove. It too has a dipstick. Fill the transmission with 20-24 ounces of H-D transmission lube or Syn3 oil.

To change the primary oil, stand the bike as straight up as you can do safely. At the very rear of the primary down on the bottom, there is a drain plug. Remvove it and drain the primary oil. Remove the large round derby cover by removing the five screws that holds it on. Replace the drain plug and tighten. If you look at the clutch assembly, you see the aluminum outer shell. Just inside this is a black disc, the clutch diaphragm spring. Fill the primary with H-D primary lube or Syn3 until the oil level is just up to this level, do not overfill or the clutch will drag. It usually takes 36-44 ounces of oil.

To change the oil filter, simply screw the old one off, clean up the mess, and screw the new one on, tighten 3/4 after it makes contact.

Good Luck

Mar 30, 2010 | 2000 Harley Davidson FLHR-FLHRI Road king

1 Answer


If the plug was a 1/8" pipe plug that uses a Torx type wrench, I'm betting it was your transmission that you drained. Before doing anything further, stand the bike straight up and check the transmission oil level. There is a chrome cover above the plug that drains the transmission. At the front of that cover there is another "plug" that uses a large hex key or allen wrench. Take this plug out and you'll see that it has a dipstick. With the engine standing straight up, the lubricant level should be between the two lines. If not, drain the transmission and refill it with 20-24 ounces of H-D Syn3 lubricant or H-D trans lube.

The engine oil is drained by taking a plug out of a hose on the right hand side of the engine. Since I haven't changed oil in a bike this new, (I work on the old bikes), I can't describe what this plug looks like but it comes out of a large diameter hose that is held next to the frame by a clip that is welded to the frame. If this is what you drained, check your engine oil level. Refill with three quarts of Sny3 or H-D 20W50 engine oil. Check the oil with the bike on the side stand. There are two lines on the dip stick. The lower line is "full cold", the upper line is "full hot". Do not overfill.

To check your primary lube level, again stand the bike straight up and remove the "derby" or clutch cover. This round cover with five bolts in it allows one to adjust the clutch without having to remove the entire primary cover. The drain plug is underneath the primary compartment at the lowest part near the rear of the cover. The oil level should be up to the bottom of the diaphram sping in the clutch hub. It's a black looking round thing inside the clutch hub. Just fill the primary up with H-D Syn3 or H-D primary-Transmission lube until it touched the bottom of the outer clutch drum, usually 40-40 ounces of oil.

The only other fluids you have in your bike is brake fluid. So, if you took a plug out and something else came out, I have no idea as to what it is. Please post and let us know what it was. Contact me directly at

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