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33
Joined
12/29/2017
Location
CA
Edited Date/Time
2/5/2018 9:21pm
I'm in the middle of putting an 05 KX250 in an 09 KX250f roller. I read in an old thread that on an 08 KX250f roller/airbox that an 01 CR250 airboot fit right up, anyone have any experience with these or know someone that does?
You will need to make a adapter plate between the air box and the boot.
Here is some pics comparing the 98-99 CR250R boot to the 2000 CR250R boot.
The 98-99 boot is on the left and the 2000 on the right.
Deep sand reduces effective HP by about 20% so unless your riding in the deep sand or your a BIG guy, you don't need the 500 and will likely ride faster on a 250
Another upside is the 250 will fit a 250f chassis a lot better then the 500..
The Shop
I used the 250F rads..
But that was also with a 500 conversion.
Cut n paste
I know of a few other guys that also used to 250F rads as well in their 250af conversions.
For me it was just easier..
Your build is looking good.
This is another way to do the air boot... you can find a piece of rubber hose that fits over the bell of the carb in your local
hardware supply store..In the plumbing section. It's a repair joint thing.... Bring the carb with you and find the one that fits. cut it to fit the gap. It will slip over the stock air boot once you sand down the grove for the clamp on it...See the picture.
Now, inside the boot you have to put in a plastic ring to hold pressure from the hose clamp holding it on...You can see a little white plastic poking out of the boot end in the first picture. use lots of moto seal on the joint...Put a second hose clamp over the joint... Done for less then 10 bucks!
The white plastic thing I inserted in the boot to be able to clamp down onto it was also found in the plumbing section. Found something that fit... cleaned it up with a dremel tool.. moto seal it in place.. Hose clamp...good to go.
It's one solution for cheap if you can't find a boot that fits.
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