Question about 2003 kawasaki KX 125

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Hi ya im justin iv got a kx 125 20003 and iv blow my piston and the rings has scatch my barrel and how can i get the bits of metal out of my engine

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  • 69 Answers

Best to open lower crank case and get it all out !!!!! I personally learned this one with a Ski-Doo motor

Posted on Dec 09, 2009

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Posted on Jan 02, 2017

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1 Answer

Just put in s new top end a yz 85 2008 , wouldnt start but could if it was bump started and ran bad. Opened her up again and there was marks all over the piston, help??


When fitting a new top end you may have broken the piston rings. On a Two Stroke engine the rings have a gap which must not enter any ports. To prevent this the slot for the rings has a metal peg to hold the ring gap in one place.
On Four Stroke engines there is no ring peg as there are no ports.
If a ring breaks whilst being fitted the broken parts will enter a port and then be dragged up and down the barrel causing damage to piston and barrel. The broken parts one having made their way to the top of the piston will be crushed between the cylinder head and the piston damaging both. The cyl head can be re used but the piston is most likely ruined.

Pete

Oct 03, 2013 | Motorcycles

1 Answer

Hi i need a piston barrel for a kx 125 1999 and i need the price


With wishing to be rude Lee, if you don't know how to get a piston barrel, you shouldn't be attempting to replace it yourself.
Ring your local Kawasaki dealer.

Jul 28, 2011 | kawasaki Cycling

1 Answer

A piece of metal scrathed the side wall of my piston sleeve and goudged the top of the inside of my crankcase,like where my spark plug scews in.it siezed up and when i opened it i noticed antifreeze on top...


There should be no play up and down. Any play is coming from a worn out needle bearing on the crank. A bit side to side is okay and normal. The crank will need to come out then it gets pressed apart and fitted with a new bearing. Price out the difference in cost of fixing the crank verses getting a new $170 crank assembly.What probably happened is a broken piston ring extended into a cylinder port and the piston against the ring is what gouged the cylinder and head. Please rate my answer.
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May 29, 2011 | kawasaki 125 Dakar Motorcycles

1 Answer

I purchased a kx 125 and it was a no runner. I tested the compression which was good, tesed the spark which was good, so i took the top head off and it looked like the head gasket was blown. I replaced...


hi first off you must remove all the water as soon as possible as corrosion will occure very quickly on the big end and main bearings thus you will have to strip the engine to replace them so the quicker you remove the water the better, it may be when you removed the head the water that was inside the water jackets has gone inside the engine, however you do have a base gasket under the barrel that may have torn and leaked water into the engine, it would be best if you drain all the water out before you start removing the barrel, remove the piston by removing a circlip and tapping the gugeon pin out carefully remove the small end bearing, dry this and oil it, once all this is done useing compresed air blow out the water, if no air is availabe turn the engine upside down and alow water to run out, use some wd40 and engine oil to get around the bearings and remove the exsess oil when happy all is lubricated, when replacing piston ensure correct fitment arow facing exhaust port, if no arowlocate the piston rings in corect position and fit with the locating pins at the rear, any questions ,paul

Jan 19, 2011 | 2003 kawasaki KX 125

1 Answer

HI, I have a Suzuki LT80, it starts ok but it smokes like hell and there dosnt seem to be much compression what could this be? thanks.


It seems you have worn rings and/or barrel and piston. You will have to get the barrel off the engine to ispect. Unbolt the carb and exhaust from the engine. Unbolt the 4 nuts on top of the head. Remove the head and barrel from the engine. Inspect the piston for scoring and wear. Remove the piston by removing the circlip next to the gudgeon pin. Do not drop the clip into the engine.(stuff some clean rags in the engine under the piston. The gudgeon pin can now be pushed out of the piston and the piston removed.Have the barrel and piston measured for wear.
If you're on a tight budget you can replace rings only but this is a penny wise pound foolish solution. You'll have the same problem in 2 months time.
It is best to rebore the barrel and fit an oversize piston and new rings. The barrel can also be resleeved but this is a more costly option and should only be exersized if you cannot obtain an oversize piston.

Oct 07, 2010 | Suzuki TS 185 Motorcycles

1 Answer

How to install power rod on a 2001 kx85,we did a piston and ring replacement and the power rod came right off, but how to reinstall is the problem


when your putting the barrel back onto the piston start lowering it down. when you lower so far swing the power rod into posistion cause you cant fit it after you have reinstalled the barrel. hope this helps just fitted a new piston and rings on ma kx80 and a had the same problem lol

Jun 11, 2010 | 2003 kawasaki KX 125

1 Answer

06 kawasaki kx450f pinging


Hi
Sounds like a broken piston ring, & now its embedded itself into the piston & / or barrel
Remove exhaust pipe & shine a light up into barrel / piston to inspect !!

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!) - it helps my ratings

May 09, 2010 | 2006 kawasaki KX 450 F

1 Answer

2006 KX250F blowing oil out breather should I be concerned?


hi
ther is a chance that being over filled will blow out of the crank breather so drain off to the correct level if then the bike still does this then you have to high crank presure meaning the bore and piston/rings are badly worn
thanks jay

Jun 23, 2009 | 2006 kawasaki KX 250 F

3 Answers

2005 Dodge 3500 Smoke (Blow-by)


I have a 2005 dodge 3500 and i can see smoke sometimes when im driving and when i open my hood and open my oil cap while my truck is still running smoke comes out along with a little bit of oil... Do I need to change my pistons rings? What else could cause this problem...?

Jun 23, 2009 | 2004 Dodge Ram 2500

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