Question about 2006 KTM 125 SX

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Ktm 50 bogging down gas in clutch oil

My sons bike does the same thing so i kept changing the oil and it would run fine for a few minutes and start doing it again so i drained the oil started the bike for a few minutes checked the clutch and there was gas getting into the oil how does gas get into the clutch oil ?

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BAD CASE SEAL, SORRY BUT U R GONNA HAVE 2 GET OUT DA WALLET AND BUY A REPAIR MANUAL 2 GET PROCEDURE AND SPECS 4 UR BIKES THE GOOD NEWS IS IT HAPPENS ALL DA TIME AND DA REPAIR IS PRETTY STRAIGHT FORWARD. THE COST OF DA MANUAL WILL TAKE CARE OF ITSELF MANY TIMES OVER WITH SELF MADE REPAIRS

Posted on Oct 04, 2009

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Either blown rings or main crank seals have gone are you sure its petrol / water to check for ring you need a compression tester and the simply screw in the place of the spark plug and you kick the bike over and get back to me what psi it reaches on the guage this pic will demonstrate bud ktm 50 bogging down gas in clutch oil - 17e93a4.jpg

Posted on Oct 04, 2009

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Ktmsx50 2006


the clutch is not part of your problem. I would focus on the carb work that was done

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My son's KTM 50 senior pro doesn't start. has petrol vapour coming out of the pipe.


The engine is running too rich. The carburator needs tuning to get the fuel mixture correct or the choke may be stuck in a partially closed position.

Feb 11, 2012 | 2006 KTM 50 Senior Adventurer

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2003 KTM 250 SX won't start. When you kick it, it starts to fire but never turns over. I accidently put the wrong gas in it. It takes 60:1 but I didn't put enough oil in it. It died while I was riding it....


hi
If you have run the engine with too little oil then there is probably damage to the piston / rings & / or bore
Remove the exhaust to have a look

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Bogging


Try fitting a new spark plug.

Jul 10, 2009 | 2002 KTM SX 125

1 Answer

Will not run


Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There may be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Be sure the bolts are tight. Let the float bowl fill then start the engine. Set the idle speed with the idle screw, (sticks out from side of carb perpendicular to the carb throat).


If you are smoking that badly, loose the gas in the tank and start fresh with a 32/1 gas/oil mix. That equals 4 ounces of TWO STROKE OIL to one gallon of gas. Do NOT use motor oil in the gas. It may continue to smoke for awhile, until it rids it'self of built up oil in the crankcase.

On the clutch, be sure the oil level in the gearbox is correct. This is where 10w40 motor oil goes. Check the clutch cable linkages. One at the clutch lever and possibly one at the motor. You should have about 1/4" play in the clutch handle before the lever starts actually pulling the clutch.

You can download a free PDF service manual from this site > >
http://www.carlsalter.com/motorcycle-manuals.asp I checked and your manual is on the list.

Please rate this solution. Thanks!

Apr 11, 2009 | 2005 KTM SX 125

1 Answer

My 01 yz 125 is running really strange


your problem sounds common. i would also try a rejet!

Apr 07, 2009 | 2003 Yamaha YZ 125

2 Answers

06 ktm 50 pro senior bogs after warming up


It sounds like he is running out of fuel in the bowl,poss accelarator pump ?

Apr 02, 2009 | 2006 KTM 125 SX

1 Answer

Satarter


but would start fine. I took the head off again too check it out. That is everything loked fine rebvuilt it this time went like a rocket. Couple of mates came down for the weekend rode all day Saturday and was racing with a Gas Gas 200 which it beat. Later Sunday afternon it starts missing tenderly chanbged plug, chewcked carb both fine. The bike did get me home suonding like it was about to run out fuel then would go like hell for a few secvonds before chugging alone again. Seem to go back to what it was like after the rebuild. The only thin I can think of is a electric problem.,I had the carb a part today & gave it a good clean, also droped the gear oil & which was fine. I did think it was the power vale at the very start of the prolbem but as the bike ran like a demon for the best part of two days it can't be that. Finally I stated first kick today and I took it for a rip around the garden. Seemed ok ravin fine not missing then when I was giving it gas in third it would start to miss. I have not got a clue what is wrong with it now and I am not keen to admit defeat and take it to the bike shop at 40 U.S and hour. ,,,

Nov 10, 2008 | 2001 KTM EXC 200

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