Question about 2001 KTM Exc-Racing E 400

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2001 KTM Exc-Racing E 400 oil smells like gas

Gooday...l was prepairing my 2001 model ktm 400 ex for Rec Reg, the only thing l did was take the tank off to fit the horn...when l put it back together it started blowing a heap of smoke, l took the tank back off incase l pinched a pipe or something and found the air filter full of oil, there was allso a heap of oil coming out the exsorst....it was running fine before l played with it...any thoughts Just a note on checking the oil , l dont know if its posible but it seemed as if it was mixed with petrol

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Hi, Frank_sydow you're getting ready to go riding you pull out the dipstick to check your oil level and are greeted with the unmistakable smell of gasoline. What happens next depends on the following:
1. You have experienced this before and do not start the engine but do change your oil and filter leaving it 1 quart low until the engine reaches operating temperature then top off as necessary.
2. The amount of time your bike has been sitting since the last time the engine was running.
3. The amount of gas and contaminants in the tank.
4. The oil pump location, exterior or interior.
5. The condition of your petcock gasket/seal/diaphragm.
If your gas tank was low and you start the engine probably nothing you would notice but if your gas tank was full and you start your engine the oil/gas mixture can blow into your air filter, come streaming out of your crankcase breather hose, and launch your oil tank cap followed by a blast of oil. The mess can be minor or you need to call a Hazmat team for assistance. This will also happen if you overfill your oil tank.
Next is the how and why gas can get into your oil tank/system:
a. The vacuum petcock rubber/diaphragm fails, which allows gas to flow from the fuel tank through the petcock, through the vacuum line into the intake manifold, then into the combustion chamber, where it seeps past the piston rings and into the bottom end.
3. Nonvacuum petcocks that are not turned to the off position will patiently wait until contaminants from the gas tank build up in between the carburetor needle and seat breaking the seal thus inviting gas to enter the combustion chamber eventually finding it's way into the bottom end and the oil tank.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
is it possible to have gas in the oil on 4 stroke ATVConnection com ATV...
oil smells like gas
http://www.keustermans.nl/KTM_RFS_Workshop_Manual.pdf
http://www.partsfish.com/page/oem-parts-for-ktm
KTM 400 EXC RACING Owner Manual

Posted on May 19, 2017

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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Posted on Jan 02, 2017

  • 3567 Answers

SOURCE: how much oil per gallon of gas

A fuel mix of 32 to 1 is the standard. That means 4 ounces of oil to one gallon of gas. Be sure to use two stroke engine oil in the gas. DO NOT use motor oil. 10w40 motor oil is for the gearbox.

A top rating would be nice. Thanks!

Posted on May 05, 2009

  • 1 Answer

SOURCE: how much oil do you put in a 2006 ktm 250 sxf with

You can download an owner's manual for free here

http://www.ktm.co.uk/250-SX-F.28.19.html?&detailview=4&cHash=dcbf8829e1

Posted on May 23, 2009

  • 2 Answers

SOURCE: My KTM lc4 640 running problems

Check your valves. they might be tight. possible shimming required there to get them back to spec

Posted on Jul 01, 2009

voodoomox
  • 1689 Answers

SOURCE: weak spark.got oil in stator casing.is this ok?

Hi ridge,

good move will be have the recoil replaced and have the seals around the stator cleaned / investigated / repaired.

here is a good section from Supermoto Junkies on SX525

http://www.supermotojunkie.com/forumdisplay.php?f=43&order=desc&page=58

regards,

voodoo

Posted on Jul 12, 2009

dmsr63
  • 2050 Answers

SOURCE: 2006 KTM 125 sx high revving out problem

Look into your power valve. If it doesn't operate freely, you won't get peak performance. They can get gummed up.

Posted on Jul 27, 2009

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Hi I have a 2000 model KTM 520 not getting fuel to the Carby once I clean the carburettor does anyone have any ideas or know where I can download a good diagram would be a great help thank you


Hi, Tim always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
Carburetor Set up 101 This is the Holy Grail/Bible on KTM carbs
Dirt Rider Magazine
2000 2007 KTM 250 400 450 525 SX EXC service repair manual pdf
http://www.partsfish.com/page/oem-parts-for-ktm
2001 KTM 400 520 SX MXC EXC RACING pdf

Nov 23, 2016 | 2001 KTM SX 520 Racing

1 Answer

How much oil does a 520 sx take


Thank you for contacting FixYa with your inquiry.
The KTM factory suggested Oil is 1200cc of 10W-40.
http://dirtbike.off-road.com/dirtbike/review/ultraserious-racing-four-strokes-ktm-520-sx-520-exc-400-sx-and-400-exc-20704.html
If we can be of further service please let us know.
Best regards,
TF

Jul 16, 2011 | 2001 KTM SX 520 Racing

1 Answer

It's an 01 ktm 400 exc. I can't shift into first gear and I'm getting a ratting sound sometimes. The bike still shifts beautifully up and down from second on, but when I try and downshift into...


Thanks for contacting FixYa with your inquiry.
Check externally for the obvious things first like a bent shift lever or lever re-installed in a position interfering with frame or something preventing engagement into 1st gear. I'm never that lucky.
More than likely you have either bent a shifting fork or lost a tooth on a gear or something on the shift mechanism internally is bent, broken, or has lost a clip. Drain your oil and check the plug magnet to see if any metal shavings, fragments, or parts appear.
You will most likely have to pull the engine and split the case and replace parts. You can take it to a shop or if your handy do it your self. Take a look at the link to the parts fiche and determine your preference.
http://cyclehuttktm.com/FicheFinderNew/FicheFinder.aspx
2001/400/Engine/Transmission II (Don't know if your bike is a SX or EXC Racing)
2001 > 400 SX RACING > ENGINE > SHIFTING MECHANISM
You can also order a repair manual from this site or ask your dealer

http://www.repairmanual.com/KTM.html


If we can provide other information or service please advise.


Kind regards,


TF

Jul 12, 2011 | KTM Exc-Racing E 400 Motorcycles

1 Answer

Looking for instructions on dis\assembly of a waterpump on a 2002 KTM 400EXC and tools required?


2001 EXC have the same cooling system regardless of a 4 stroke or a 2 stroke, this technology have stayed until 2006

Here is the manual for 2006:
https://www.ktmdealer.net/uploads/models_tech_datasheets/8303F3_OM_EN.pdf

then your water pump assy should look like this

http://www.ktmcyclehutt.com/ktm-parts/productimages/77335955044_lg.jpg

Jun 17, 2010 | 2001 KTM Exc-Racing E 400

1 Answer

Bikes been sitting for about 2 yrs, no use.


Most likely source of a problem will be a gummed up carb. Clean it thoroughly and drain fuel tank and replace with fresh fuel. Probably would be a good idea to check the valve lash, too.

May 20, 2010 | 2001 KTM Exc-Racing E 400

1 Answer

Dies when driving down the road. Wait 10 mintues,


sounds like a fuel problem, dirty fuel or blocked filter , there is another filter inside the tank attached to the fuel tap

Apr 05, 2010 | 2004 KTM EXC 400 Racing

1 Answer

Model types


which one would be the best?First of all there is no sxc it's sx exc mxc. The difference in the sx and exc is the sx is strickly a mottocross bike. It is not geared or setup suspension wise to ride in the woods. It is much more radical than an exc which is designed specifically for woods riding.,,,

Nov 10, 2008 | 2001 KTM Exc-Racing E 520

1 Answer

Clutch fluid


Use 5wt. fork oil or ATF Dextron II/III. I've use both and have the 5wt. fork oil in now. Suppose to have a lighter pull but can't really tell any difference. Use a large syringe to pump the oil in from the bleeder at the bottom up to the master cylinder.

Nov 10, 2008 | 2001 KTM Exc-Racing E 400

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