Maintenance & Technical > KX500 Original

CR500AF VS. CRF500R

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afritts4u:
I have a fmf fatty, vforce reeds, spacer and mild porting and about to do the suspension. Cost about $500 for the mods to date. My last bike was seth enlows cr250 with the red rims. At my weight 200+ I dont notice the "wresteling" feeling with my k5 and love it!

Minnetonka_Mark:
I have a 2004 CRF250X.  I now painfully realize that Honda's aluminum frame design completely blocks access to the carb.   This is a problem on a four stroke.  However, on a two stroke you absolutely must have easy access to the carb in order to adjust the jetting and needle position.  Yamaha figured this out.  Their new aluminum frame (YZ125 and YZ250) does NOT block carb access.

The aluminum framed Service Honda CR500AF will be extremely frustrating.  You can't access the carb without tearing half of the bike apart (tank, subframe top bolts, and rear shock top mount).  Go look at the pictures and see if you can find the carb.  Its buried out of view.  Getting full access to the carb on my CRF250X takes about an hour.  The CR500AF will be similar.

A second point-  As far as I know, CR500 engine technology is at least one generation older than is the KX500 engine.  The CR500 does not have a power valve.  All modern two strokes have a power valve.

A third point- The Service Honda CR500AF is a $7000 plus bike (new).  How many slightly used or new KX500's can you buy for $7000 plus?  Two or possibly three.  No thanks to the CR500AF.

delusionised:
Good points i just thought that it would be nice to have a 500 that was not such a brute on a motocross track. I tried to take my 03kx5 to a motocross track and was beat sensless. There is no way (atleast for me) to use this bike on a motocross track. When i jump i have way to much power or  not enough causing me to teter-toter in the air, i all most died. I figure maybe since the CR500AF has a newer frame and ergonomics that it maybe better to motocross.

mikesmith:
Thats why I miss the 500 nationals,with out sounding corney it was "the mans" class!The more you ride it the better it gets,give it more time and dont compare it to a 125 or 250.Have fun!

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