Maintenance & Technical > KX250 / KX125

KX 250 rod, cylinder, and PV questions

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CR480R:
I am rebuilding a '91 kdx250 engine to put in my 3-wheeler...  I am rebuilding a '95 KX250 crank to put in it and need to know what the rod side clearance should be on my new connecting rod... I also need to know the allowable crank runout? .001? .0005? I am using a '98 KX250 cylinder and piston was wondering if the powervalve gears should be lubed when top-end is assembled? If so, what type of lube?   Thanks-Justin

CR480R:
Anybody have a manual?

Wizzy214:
are you sure all the parts are compatible?
1991-kdx250 bottom end
1995-kx250 Crank
1998-kx250 cylinder,Head, and Piston

have you tried putting the cylinder head on the bottom end? does the powervalve line up? and/or the cylinder itself?

post pics

this might help

http://www.kawasaki.com/DefaultFrame.aspx?...OOSEVEHICLE.ASP

was wondering if the powervalve gears should be lubed when top-end is assembled? If so, what type of lube?
i always use a little 2-stroke oil, whatever im using for the premix.

CR480R:

--- Quote from: Wizzy214 on October 31, 2007, 09:09:41 AM ---are you sure all the parts are compatible?
1991-kdx250 bottom end
1995-kx250 Crank
1998-kx250 cylinder,Head, and Piston

have you tried putting the cylinder head on the bottom end? does the powervalve line up? and/or the cylinder itself?


--- End quote ---

Yes it is nearly a bolt on deal... I need to get the 2 shorter front cylinder studs from the '98...and shorten the lever for the powervalve a bit or get the lever from a newer bike... But thats it...

BigGreenMachine:
That motor is going to be a real powerhouse in your T3.

Plan on going with an 01 KX250 lump for my T3 after the 5 goes to the 2wheeler.

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