Question about 2001 KTM SX 400 Racing

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When i accelerate flat out in 1st gear there is a flat spot,what can it be 2001 ktm 400.

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A couple things you can check. One is make sure the carb float level is high enough.It should be set exactly at the factory spec.Another thing is make sure the carb main jet is not restricted, a piece of sand or something. Make sure the air filter is cleaned and in good shape.And a fresh spark plug is a good idea.You can also call the KTM dealer and see if they can help. They might have a recall type problem they could tell you about. I hope this helps you and your bike.

Posted on Sep 10, 2009

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Posted on Jan 02, 2017

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1 Answer

Will not shift into first gear


Sounds like your clutch is out of adjustment, or needs to be bled. Most of the ktm's use a Magura hydraulic clutch which can be bled using Mineral Oil. DO NOT USE BRAKE FLUID.

Jul 30, 2013 | KTM Motorcycles

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

Flat spot when excellerating in 1st gear between


good day just ask the qualified honda tech. to fix your problem.

Jun 21, 2010 | 2000 Honda VFR 800

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

2001 Toyota Tacoma Xtracab with 1st-2nd shifting problem


if it has a kick down cable that could be the problem look for a cable running from throttle to trans that can be adjusted in length

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1 Answer

Vibration When Accelerating


Did you machine the flywheel? Because if you replace the clutch without machining the flywheel. The flywheel will have high and low spots on it. The new clutch is perfectly flat, and the old clutch was worn into the flywheel. Thus, vibration! I sincerely hope that I helped. Best wishes to ya.

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1 Answer

Gaging


Are the exhaust fumes thick? if so your flooding out but chances are the accelerator pump can't keep up with fuel.,

Nov 10, 2008 | 2003 KTM MXC 525 Racing

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