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Wondering how oil lines hookup on97 v twin the motors are different 88 v twin pump everything's different

Building a bike have 88 soft tail frame put 97 eveo in it oil routing is different

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Get online to owners club webpage and search the people that have probably done it before?

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Oil is blowing out of tube into filter housing on my 89 Harly soft tail. Bike hasent been started in there a check valve? Any info. Thanks.

Yes there is a check valve but it's in the oil pump. This is a problem with the pre-2000 Softails. The oil tank is mounted higher in the frame than the oil pump on the engine. When the bike is allowed to sit for an extended period of time, the oil seeps past the check valve ball in the oil pump and settles in the engine cases. We call this "oil sumping". When the engine is restarted, the oil pump scavenger gears simply cannot pump the excess oil back to the oil tank fast enough and it is blown out of the crankcase vent tube. Since the EPA requires that vented crankcase pressure be cycled through the engine to be burned, the crankcase vent tube is connected to the backside of the carburetor backing plate. There are baffles in the tube but they only work for oil mist. The results is that your air filter gets filled with oil when you restart the engine after a lenghty downtime. Most riders will disconnect the tube from the backside of the backing plate and plug the hole in the backing plate. Then they install a simple hose about six inches long or so to the nipple that comes out of the engine cases and run it back towards the rear of bike underneath it. Some guys will put a small crankcase breather on the end of the hose as well. This way, the oil will go on the ground and you can clean it up. I usually slide a shallow pan under the bike before restarting one that has sat for a while. Avoid "topping off the oil tank" before restarting a bike that has sat for a while. Check the oil level and as long as the oil is visible on the dipstick, restart the engine and check the oil level when the engine reaches operating temperature. Harley improved on this problem in 1993 when they went to the "head breathers" where the crankcase vents are located in the cylinder heads.

Good Luck

Aug 21, 2011 | Harley Davidson FXST Softail Standard...

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

Hello there I have a 2003 soft ail standard I just put a gear drive on it my question is does it make a difference which way the lifter goes there is a hole on the lifter for oil will it make a...

I know on an Evolution engine, it doesn't make any difference. On an old Shovelhead, it does make a difference. The old Shovelhead required that the oil hole be positioned toward the center of the tappet block, one facing inboard and one facing outboard. As a habit, I've always installed Evolution tappets in this manner as well. But, it doesn't make any difference on an Evo and I seriously doubt it will on your Twin Cam.

Good Luck

Apr 01, 2011 | Harley Davidson FXST Softail Standard...

1 Answer

What is the oil fill hole in front of my gas tank on my 1991 Suzuki dr350 for

Your bike has motor oil stored in the frame instead of a " tank". there is a frame drain located at the lower portion of the front downtube of the frame and the engine. If you are changing the oil you should drain both the engine and the frame and then re-fill. since you bike has two pumps, one to feed the motor and one to push the oil back to the frame, you need to add some oil and then run the bike for 30 seconds or so. After you have run the bike for 30 seconds check the oil in the frame and add as needed.

thanks and I hope that this helps.

Jan 18, 2011 | 1991 Suzuki DR 350 S

1 Answer

Where is the oil drain line at the front or the back?

Harley Davidson

Sportster = At the back, oil tank drain hose connected to a nipple on the frame with a hose clamp.

Twin Cam = Under the motor you'll see 2 plugs, one vertical and one horizontal.
the vertical bolt is the oil drain plug. The horizontal bolt is the Transmission drain screw.

Evo = Back of the bike, oil tank drain hose connected to a nipple on the frame with a hose clamp.

Some may be modified and just be a hose with a bolt stuck in it with a hose clamp.

Dec 01, 2010 | Harley Davidson FXST Softail Standard...

1 Answer

Where is the oil drain plug on the 88 c.i.H.D.2003

On all Softail models, look along the bottom of the oil tank from the right side of the bike. You'll see a line or hose going downward towards the transmission. Usually, unless the changed something, the line will come out along the frame down below and behind the transmission. There will be a plug in the end of the line. Remove the plug to drain the oil.

Good luck

Jul 21, 2010 | 2000 Harley Davidson FLSTS Heritage...

3 Answers

Where does the oil go from tank when bike sits a long time?

This is what we call "oil sumping" around here. On the soft tail line or any other line of Harley where the oil tank is higher than the oil pump, the oil will seep past the check ball in the oil pump and leak into the crankcase of the engine. When the engine is started up, it will "puke" the oil out. Now, up until the introduction of the Evo engine, the engine would puke on the ground under the bike out the breather tube. Now with the Evo engine and the EPA's regulation that crankcase ventilation fumes have to be fed back through the intake, it pukes into the breather. An even bigger mess. So, what we do whenever we think we've got this situation is put a pan under the shovelhead and panhead bikes, On the Evos and Twin Cams, we take the air breater cover and the air filter out before the fire the engine. It's a mess either way you look at it. I don't think the Twin Cams are as bad as the Evo engines due to the different type of oil pump.

Jul 15, 2010 | 2000 Harley Davidson FLSTS Heritage...

3 Answers

2000 Katana 750 needs new engine possibly is a great resource they have guides for interchanging parts.

Mar 17, 2009 | 2000 Suzuki GSX 750 F (Katana)

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