Question about 2001 Buell S3T

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I just replaced all oil lines on my 97 thunderbolt. i dropped the oil pump due to a loose fitting. put everything back the way it was. simple right? well when i fired it up. oil came drooling out of the pump just above the pump side of the oiul pump. any ideas what i did wrong?

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  • Van_Kerr May 11, 2010

    Hi .... Did you carry this out over an oil pan etc ? Sounds as if you've misplaced an O ring or used the same gasket. Have a look around the area for an O ring.


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You dropped the oil pump it needs to be replaced again and new gaskets installed,you have to be very gentle with the pump they are so porly made.

Posted on Dec 28, 2008

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

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

Nov 15, 2014 | Motorcycles

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Oil light won't stay off

Could be a couple of different things.

First off, check your oil it correct? (I know, kinda stupid of me, but I had to ask)

Just because you have oil doesn't mean the oiling system is working.
On thing you can do is remove oil tank cap, using a flashlight look down into the tank and see if you can notice oil being pumped back into the tank.
Or, you can pull the oil sending unit and see it oil pumps out the hole when the engine runs (this WILL be messy!).

Or, pull the oil return line at the oil tank.
IF you pull the feed line by mistake, you'll know!
Oil will run out the tank fitting until the tank runs out of oil! (opps, wrong line!)
When you pull the return line, you should get just some residual oil out the tank fitting (and the line).
Put the end of the line in a container and see if oil squirts out when the engine runs.

If all the above indicate oil IS circulating, the oil sending unit itself might be bad. They do occasionally go out.

Oct 13, 2013 | 2007 Harley Davidson FXSTB Softail Night...

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My rs 125 runs fine for a min then looses power and gradually gains it back, when i got home i noticed spots of black oil down at my foot pegs, is this a sign of needing a re build?

Hi, Adam you may have squeaked your top end this is commonly known as "HEAT SEIZE" the piston heats up expands and becomes extremely tight in the cylinder bore and usually occurs mainly on 2 cycle engines right after a fresh top end rebuild, but it can also happen to brand new motorcycles, these are rare instances due to better quality control and education. Overheating failures that cause pistons to seize are many and each one should be carefully diagnosed to prevent future repeat offenders and the usual suspects are:
1. Loose fasteners causing intake or base gaskets to leak or crankshaft seal failure caused by age, overheating, or walking.
2. Improper assembly of reed valve gaskets.
3. Improper oil/fuel premix ratio.
4. Broken, pinched, or cracked fuel line.
5. Carburetor fuel passages clogged or restricted from stale fuel varnish, ethanol sludge, dirt, rust, or fuel level in float bowl too low.
6. Main jet size too small.
7. Air filter improperly installed, missing or not sealing.
8. Faulty or improperly adjusted oil pump and or cable.
9. Failure to bleed oil pump after running oil tank dry, rebuild of pump or replacement
10. Among the causes of lack of cylinder, lubrication is clogging of lubricator by dirt or waste, obstruction in oil pipes/lines, leaky check valves, leaky pump packing, broken oil pipe/line, oil too cold to feed.
11. Wrong type of oil used in premix or oil tank
12. Improper spark plug heat range (too hot) and or gap.
13. Ignition timing retarded, faulty CDI.
14. Excessive engine load, brakes dragging, clutch slipping, transmission lubricant level too low or viscosity to high.
15. Engine coolant level too low, too old, or improper mixture ratio.
16. Engine coolant pump failure, damage, or passages restricted.
17. Radiator clogged, fins damaged, or faulty cap.
18. Failure to follow proper break in procedures.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
DOWNLOAD 2004 Aprilia Rs 125

Jun 12, 2013 | 2004 Aprilia RS 125

1 Answer

1972 shovelhead oil routing

Bottom of oil tank to right/outside feed on pump. Inside is return line to top of tank where filter cap is. If you ran a cooler than run this line to the cooler and back to the tank. Above the pump is the large vent line. It goes to a tee fitting and than to the top of the tank and to the back/bottom of the primary. The small line goes to the back /center of the primary. It\'s the chain oiler.

May 10, 2013 | Motorcycles

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When re-installing the oil pump, make sure it is aligned properly. If it's not, binding could cause your problem.

Sep 20, 2012 | Harley Davidson Motorcycles

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Hey i need a diagram showing how to install new oil lines from the oil tank to the parts of the bike that they go to . The bike is an 86 fxr harley davidson and i am having to change lines due to an oil...

Ok, let me brush some cobwebs off here and see if I can remember how the lines go on the FXR. On that model, the oil tank was under the seat and one line off the bottom of it and two at the top as best as I can remember. Of course the line off the bottom of the tank was the feed line and goes to the inlet of the oil pump. As best as I can remember, the oil pump had one fitting in the middle of the outer plate on the oil pump. This would be the inlet. If the fittings are on the top, the outer fitting is the inlet. The outlet from the pump was under the cam chest facing towards the front of the bike. A metal line ran from it to the oil filter and another line ran from the oil filter back towards the tank. The line changed from a metal line to a rubber line right about even with the oil pump and then it went up to the large fitting at the top of the tank. There was another oil line that came from the cam chest just above and slightly to the inside of the oil pump. This is a vent line that goes to the top of the oil tank. The crankcase vent comes from a fitting below the pump and to the inside and runs up and into the backside of the air cleaner. This is the best that I can remember on that model. 1986 was a long time and a lot of bikes ago. Remember, the oil comes from the tank to the pump, into the engine out of the pump through the oil filter and then back to the tank. If you have trouble figuring out the pump connections, Squirt a little oil into one of the fittings and spin the engine with the starter. Watch the oil, if it goes into the fitting, that's the intake. If it blows it back out, it's the outlet. If you have any problem, contact me directly and I'll make a drawing or something to send you. This forum will only allow for a file transfer of 150Kb and my files are usually larger than that. I'll send them as jpg files. Contact me at


Jul 14, 2011 | Harley Davidson FXR Super Glide...

1 Answer

Need diagram for 87 heritage softail oil line routing

The tank has four lines on it. The large line on back side of the tank is the oil drain line. The lowest oil line on the bottom of the tank goes to the feed side of the oil pump. The oil comes out of the other fitting on the pump and goes through the oil filter. It goes to the outer edge of the filter. The oil comes out of the center of the filter and goes back to one of the upper nipples on the tank. There is a vent line that comes out of the case just behind and above the oil pump that goes to the other high nipple of the tank.

If you can't figure out which fitting is which on your oil pump, jack the rear wheel up and put the transmission in high gear, remove the spark plugs. Then, using a oil squirt can, fill the fittings with oil. Turn the rear wheel in the normal direction of rotation and watch which fitting spits the oil out, this is the return side of the pump and the other side is the feed side. Depending on how the oil pump is set up, the feed fitting is the one closest to the centerline of the bike usually. But, It depends on how the pump is set up. If it only has one fitting on the pump outer plate, that is the feed fitting.

Good Luck

Apr 23, 2011 | Harley Davidson FLSTC Heritage Softail...

2 Answers

Looking for a diagram for the oil lines on a 1972 Sportster

I can send you a diagram but not through this forum. The file size limit here is 150kb. Contact me directly and I'll send you a drawing of a later model but the oil line connections are the same.

Basically, the input oil line comes off the bottom of the oil tank and goes directly to the backside of the oil pump. The oil is pumped through the engine and then scavenged by the oil pump. It' is pumped out the front side of the pump to the oil filter if it has a spin on filter on it somewhere. If not, the line goes back to the oil tank and connects right at the cap. This oil tank uses the drop in type filter or the filter that has a replaceable element in the cap. The only other oil line is a breather line that comes out of the cam chest just in front of the front chain sprocket, you'll have to take the chain sprocket cover off to see it. It goes up and behind the oil tank to the small hose connector. That's the breater vent for the oil tank. The vent that comes out the front of the cam chest has a pipe on it that comes down and dead ends. It doesn't connect to anything.

good Luck

Sep 30, 2010 | Harley Davidson XLH 1000 Sportster...

1 Answer

I have serviced my 97 600 bandit s. had to

Hello if you had the fuel tank off make sure you did not hook up the vacuum line to the fuel outlet and fuel line to the center fuel petcock vacuum connection

Apr 29, 2010 | 1997 Suzuki GSF 600 S Bandit

1 Answer

1998 thunderbolt

I would look at possibly rebuilding the carb or at least a good cleaning.  It sounds like there may be some gunk in the jets. As for the missing component it might be the flasher as that sounds like the location to the right of the battery on a mounting tab. I do have the manual I'll have to dig it out.,,

Nov 10, 2008 | 2002 Buell Thunderbolt S3T

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