Question about 2004 Harley Davidson FXSTS - FXSTSI Springer Softail

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Harley troubleshooting Have Oil leaking from crankcase breather hose on a 1988 harley davidson softail after winter storage

Posted by Anonymous on

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  • Harley Davidson Master
  • 3,506 Answers

Sorry but I do not have expertise to adequately advise you on a bike of this vintage but I gather that it is not uncommon for these hoses to leak. Check the oil separation devices in the rocker boxes, check that you do not have oil right up to the full line, better at about the halfway mark. Please post your answer as a comment once you get one that is definitive and works for your question. Thanks.

Posted on Oct 13, 2014

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Posted on Jan 02, 2017

  • 2712 Answers

SOURCE: oil blow out the breather

An overfull oil tank will do it. Even if not overfull just about all harley's will blow oil out the air filter. Unless there is a bunch of oil coming out, it's not a problem What I've found is that the air filter eventually gets saturated and then starts to leak through. The level in the oil tank doesn't seem to matter. If you change the air filter the problem goes away, until the new one gets saturated and then it starts all over again. My plan is to get a K&N air filter, which you can clean yourself and save having to buy a new air filter every 4,000 miles or so.

Posted on Nov 20, 2008

  • 91 Answers

SOURCE: oil drain plug

its not a plug its a hose look under the tank on the pipe side, look for the hose thats goes to the bottom frame rail (tube) thats the drain hopes this helps

Posted on Jan 01, 2009

  • 420 Answers

SOURCE: oil blow out the breather

This is a common problem on all sportsters, they have an oil blow by that dumps it into the air filter. I have found that if I run about a half quart low the problem goes away.

Posted on Mar 04, 2009

rylee_smith
  • 8619 Answers

SOURCE: oil drain plug

Hi
It is located on the right side just under the oil tank ; if you follow the rudder hose that exits the rear right side of your oil tank it leads to the bottom of the frame under this is the oil plug. This hose has a plug clamped to the end of it or stuck into a prug that is welded to the frame.
After this unclamp and pull the plug to make sure that you have the dipstick out before pulling it loose.

Please do rate the solution as "FixYa" if found useful and revert for further assistance.
Thanks Rylee

Posted on Mar 27, 2009

  • 5 Answers

SOURCE: oil drain plug

Its at the back of crank box right hand side of bike attached to bottom of frame in a sprung clamp just before the softtail swingarm- black hose with a plug and hose clip

Posted on Jul 04, 2009

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2 Answers

91Harley FLH, OIL pouring out of breather tube . Whats problem?


Has the bike been sitting for a while? If so, I may have "sumped". This means that oil from the oil tank flowed past the check ball in the oil pump and flowed into the bottom of the crankcase. If the oil level is low, there is a good chance this is what happened. Only way to get the oil out of the crankcase is to run the bike until all the oil is pumped out thru the breather. Place a pan under the breather hose to catch the oil. Eieset way to solve this problem in the future is to place a clamp on the feel line that goes from the oil tank to the pump. Don't run the bike with the clamp in place! Hope this helps.

Oct 01, 2012 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

93 Fatboy oil leaking from vent tube at air filter. oil level is good, not over filled, oil will cover the oil tank on a 100 mile trip


On your '93 model, the crankcase vent is down low on the engine behind the oil pump and it runs up to the air filter through a metal and rubber hose. I don't know how many miles you have on your engine but it you're getting any blow-by on the rings, this will increase the pressure in the crankcase. Most people simply re-route the crankcase breather underneath the bike and plug the hole on the backside of the air filter. Replace the metal line with a rubber hose and put a small filter in the end of the hose. Route the hose back behind the transmission and attach it to the transmission mounting plate just in front of the rear wheel.

This was the way the older Shovelheads were done from the factory for years until the EPA made them start running the crankcase vented air through the engine. In 1994, Harley went to the "head breather" system and moved the crankcase vents to the heads. Still, the oil mist in the vented air builds up in the air cleaner on these models as well.

Good Luck
Steve

Apr 12, 2011 | 1993 Harley Davidson FLSTF Fat boy

1 Answer

Oil system manual for a 1987 softail (evolution). oil leaking from breather of engine system.


On your '87 Softail, the engine breather vent is behind and below the oil pump. The air from the breather is routed into the engine air filter by a metal pipe and rubber tubing that runs from the breather vent to the air filter. It is common to get a bit of oil in the air filter because of this system. The system was designed to meet EPA regulations of the time. Since then, the breather system has been modified to allow the engine to breathe at the top of the heads instead of down low on the engine. This resolves some of the problem with oil getting into the air filter but it still does not eliminate it. The only way to eliminate the oil from getting into the air filter is to reroute the air from the crankcase breather vent to somewhere else. Most people just let it exhaust underneath the bike by putting a small breather filter on the end of a short piece of rubber hose connected to the breather vent.

Good Luck
Steve

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

1 Answer

Crankcase breather


If the bike sits for a while, and then you run it and shut it off, it will drip.. run it more often.

Apr 26, 2010 | 2000 Harley Davidson FLSTC Heritage...

2 Answers

Oil drain plug


its not a plug its a hose look under the tank on the pipe side, look for the hose thats goes to the bottom frame rail (tube) thats the drain hopes this helps

Nov 20, 2008 | 2000 Harley Davidson FLSTC Heritage...

2 Answers

Oil drain plug


Its at the back of crank box right hand side of bike attached to bottom of frame in a sprung clamp just before the softtail swingarm- black hose with a plug and hose clip

Nov 10, 2008 | 2005 Harley Davidson FLSTC - FLSTCI...

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