2006 RMZ250 Big Bore kit on a 2008 KX250F?

etlion44
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5
Joined
9/10/2017
Location
Coal City, IL US
9/10/2017 10:37pm
Howdy all,
Just picked up a fried 08 KX250F. Lower end is good I'm told, head is torched, as well as piston. Cylinder is also pretty scored up. So complete Top end is the plan, my question is this. A friend has a an 06 RM-Z Cylinder with a JE Big Bore 80mm piston, is this compatible with my KX? Also, I'm looking for a head for the bike, but moreso on a budget build. Should I stick with finding an 08, or will anything between 04-08 Kawi/04-06 Suzuki suffice? Any insight is greatly appreciated.

Thanks
ET
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Paw Paw
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12/24/2011
Location
Benton, LA US
9/11/2017 6:45am
No it will not fit.

Paw Paw
Paw Paw
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679
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12/24/2011
Location
Benton, LA US
9/11/2017 6:59pm
Partially correct, but...
RMZ 250 & KX250F were the same from 04- 06, but not after that.

Paw Paw
Paw Paw
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Benton, LA US
9/11/2017 7:02pm
Only partially correct...The 04-06 RMZ250 and KX250F were the same, but not after that. Now some of the KX250F parts will change over through 2008, but not the cylinder and head.

Paw Paw

The Shop

BobPA
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8023
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10/31/2013
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PA US
9/11/2017 7:45pm
Paw Paw wrote:
Only partially correct...The 04-06 RMZ250 and KX250F were the same, but not after that. Now some of the KX250F parts will change over through 2008, but...
Only partially correct...The 04-06 RMZ250 and KX250F were the same, but not after that. Now some of the KX250F parts will change over through 2008, but not the cylinder and head.

Paw Paw
Partially correct haha. 04-05 KX250F are the same as 04-06 RMZ250. Kawasaki went with an aluminum frame and various engine updates in 2006.
tmauto769
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717
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12/25/2011
Location
TN US
Fantasy
1265th
9/16/2017 7:05am
Says on cylinder works site that Part #: 31001-K01 fits ALL of them 04-08 kxf or rmz.
I had a few of those bikes back in the day both of them with the cylinder works big bores.
I don't remember there being a difference in the cylinders then. Although, I have slept since then so who knows.
One of the things I do remember being different was the water pump.

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