Question about 2005 kawasaki KLX 125

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2005 Kawasaki KLX 125 excessive oil consumption

Klx 125 burns oil bad. replaced rings, then piston & rings, measured bore roundness(true to .0005), replace valve guides & seals.......??? have a 28th step to try????? @

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  • kawasaki Master
  • 60,964 Answers

Hi, Dkag excessive oil consumption is usually caused by a worn out engine with lots of mileage, new engines can also have excessive oil consumption due to improper break-in procedures or faulty parts. The general rule of thumb is anything more than 1 quart of oil consumed in 1,000 miles or 1 liter in 1,500 kilometers means it's time for a top end overhaul. The usual suspects are:
1. Piston rings not properly seated (new engines)
2. Piston rings worn past service limits.
3. Damaged cylinder wall or piston.
4. Valves and guides worn past service limits.
5. Valve seals worn out, crushed or no longer attached.
6. Cracked cylinder head.
7. Head gasket failure.
8. Pinched or blocked crankcase breather hose.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Excessive oil consumption
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Kawasaki KLX125 2003 2006 Workshop Service Repair Manual Download Manuals... $15
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2003 Kawasaki KLX125 Owner Manual

Posted on Sep 20, 2018

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5 Suggested Answers

tombones

  • 3567 Answers

SOURCE: type of oil for a klx 125 dirtbike

The gearbox gets 10w40 motor oil.

Please rate this answer. Thanks afiala93!

Posted on Apr 05, 2009

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goalie39

Ed

  • 479 Answers

SOURCE: Can I bore My 2001 yz 125?

It would be best to take it into a shop and have the machinist check it out before buying any parts, he should be able to guesstimate the amount of over bore required if it is at all possible, once you have this information, you can source the nessessary parts.
some of these type of parts are non returnable, best to play it safe.

hope this is of some help.
Ed

Posted on Apr 26, 2009

Anonymous

  • 99 Answers

SOURCE: 87 yz 125t. bored .30'' over need 56.75mm Piston

yea, for most bikes they only come in .020 increments now. if your looking to freshen up the top end, then youll have to go to a 56.00mm piston. there will be almost no change in displacement or jetting from 55 to 56mm. if your replacing the piston, its best to have your cylinder bored anyways. since the worn cylinder walls may have adverse effects on the new piston rings, and they may wear a bit prematurely. a bore only costs about 30-40 bucks most places, and its cheap insurance. plus you will have the peace of mind knowing that your bore is matched specifically for your piston. I would definitely recommend a fresh bore.

Posted on Aug 03, 2009

ollie reece

ollie reece-jones

  • 1167 Answers

SOURCE: wre 125

hi buddy the manual says change piston ever 4-5 races but thats rubbish i change mine every year and spark plug should be change every month and bore should be done when its damaged and gearbox oil changed every 3-4 rides any more info ask me bud

Posted on Oct 11, 2009

Quinn Kessler

  • 85 Answers

SOURCE: 2004 yz 125 std bore size,and what size do the

The std bore is 54mm and some available piston sizes are (Vertex Pistons)

53.93
53.94
53.95
53.96
53.97

Posted on Dec 03, 2009

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Klx 110 started smoking grey smoke burning oil there is also oil on the end of the exhaust pipe. bike still runs good.


If the level of engine oil keeps going down (even in very small amount), then it shows a problem with piston rings. Hope it helps and let me know if you need more advice. Please don't forget to rate the answer it helps me, thanks!

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hi,might be able to help,a compression test would be a good start,however,if you already have the engine apart,replace the rings anyway,if the engine has been overheated the rings although they look ok will have lost their tension and therefore their ability to hold sufficent pressure against the cylinder walls,therefore allowing blowby,or compression leakage,the other area i would look is the condition of the valve seals and seats,both intake and exhaust,if the engine has been overheated,the seals may have cracked or become weak,whenever i have my race bike apart with the head off i always relap the valves(just a light cut)and this ensures a good seal through the head etc,hope all this helps...cheers ian

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Type of oil for a klx 125 dirtbike


The gearbox gets 10w40 motor oil.

Please rate this answer. Thanks afiala93!

Apr 05, 2009 | 2005 kawasaki KLX 125

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