Question about 2004 KTM EXC 125

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Compression I have a question.. what should i do to gain more compression in my engine? i´ve got a cr 125 2001

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And i have 106 psi and the servicebook says it should be around 140-190.. thx for quick answers!If your checking the compression right I suggest pulling your top end , checck your rings maybe replace them, also put a micrometer to your cylinder refer to your service manual for the specs. If all that checks out order a high compression top end gasket kit,I use a kit made by Moose Racing, you don't neeed to modify your engine with this kit. Iput one one my 2000 KX250 2stroker, and could notice a better pull in the engine.,,,

Posted on Nov 10, 2008

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I have a 1991 honda cr 250 I cant get to start at fist gas ran right thru carb and out bottom i took carb apart and got the floats to stop sticking cleaned it out with carb cleaner put back together but...


try a new spark plug. if u fowl out a plug some time they will not fire under compression.2 strokes need. fuel,fire and air, very simple engines.it is possible crank seal are bad .that doesn't allow the engine to create vacuum in the crank case.thus fuel and air will not make it to combustion chamber.

Jul 11, 2010 | 2002 Honda CR 250 R

1 Answer

What should the compression range be on a 2004 cr


compression range is 120-160 ok but anything under 120 needs top end,if not you will start to where on those cylinder walls with the ring

May 08, 2010 | 2004 Honda CR 125 R

1 Answer

I have a 94 cr 125 , that i just bought , it started at the guys house but now wont start for me , tried putting a new plug in , any ideas


Try a compression test first see what it is, next check for spark, remove plug from engine leave connected, ground the end of the plug to the engine and kick over, if you have good compression and spark, it is in the carburation, some bikes dont start well when cold due to bad carburation(air leaks, bad jets etc)you could try roll starting down hill and see if it starts.

Nov 07, 2009 | 2002 Honda CR 125 R

1 Answer

Engine compression for 2002 125 CR Honda, 125lbs?


that sounds pretty decent, it is 7 years old so there will be less compression now than when new, obviously beacuse of wear. but 125lbs is good.

Mar 18, 2009 | 2002 Honda CR 125 R

1 Answer

Motor


the evidence presented indicates that the head gasket probably was blown or head/cylinder interface was not flat enough to hold compression and a gasket failure caused the cooling system to drain down into the crankcase.

Nov 10, 2008 | 2007 HM CR 125R

1 Answer

Timing of the engine


hi did your timming belt break and you had to change it or was the car running ok and you dicided it needed replacing and what makes you think there is no compression drop me a line and lets see if i can help yates210456

Oct 01, 2008 | 1998 Honda CR-V

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