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View Full Version : rod went though the cases kfx450


orang_kawa
03-24-2008, 04:40 PM
My kfx450 blew up this weekend the rod split around the wrist pin and then went though the front of the cases and then hit the transmission and did a whole lot of damage hope the warranty covers this
cty50328
03-24-2008, 07:00 PM
That got to make a person :grr: . Keep us updated.
08mxkfx
03-24-2008, 07:58 PM
what work do you have done to your bike? how long have you had?
woodsZrider
03-24-2008, 08:32 PM
were you racing????
what type of oil was you runnin?
orang_kawa
03-25-2008, 06:40 AM
ive been on the bike hard for the last six months racing it i have a ported head and a 13.5:1 cp piston in it. It didnt mess nothing up but the bottom end the topend is fine. My local dealer is trying to get it warranted for me cause of the way the rod broke has anyone had a problem with the rod breaking
slvrhwk
03-25-2008, 07:01 AM
That sucks.

Hopefully your dealer can work something out for you, but with having added compression I would think the warranty would be voided
03-25-2008, 10:40 AM
i hear alot the the cranks cant hold a hi comp piston to good. i hear of this happen alot on stock cranks with hi comp pistons. but never heard of it with stock pistons.
orang_kawa
03-25-2008, 04:59 PM
my local dealer didnt tell them about it but since i race them they didnt want to help but they bought the crank the cases and the counter balance i had to buy the bearings and the the couple gears that got hit in the rods pathway
exrider12
04-13-2008, 07:18 PM
pics?
125kxdirt
05-20-2008, 03:30 PM
my kfx450 rod just broke last weekend. sound like it did the same thing yours did. It's at dealer now
shoey
05-20-2008, 08:18 PM
Originally posted by 125kxdirt
my kfx450 rod just broke last weekend. sound like it did the same thing yours did. It's at dealer now Is yours high compression also?
125kxdirt
05-21-2008, 07:02 PM
no all stock
hondaracer_34
05-22-2008, 11:20 PM
hey orang_kawa, what year is yours? do you think Kawasaki fixed this for the 08's? i hope so cause ive only had mine for a few weeks, and im gonna start racing and its all stock. i run Mobil 1 Synthetic oil in mine
05-23-2008, 05:56 AM
ive seen this alot in 07's with lack of oil to wrist pin. almost same as a yfz ****brick. What year is yours?
hondaracer_34
05-23-2008, 03:07 PM
mine is an 08'
08mxkfx
05-23-2008, 03:10 PM
there all 08's they never made an 07 model. Mine was the first one bought from my dealership when they first came out and mines 08
hondaracer_34
05-24-2008, 09:53 AM
ok, didnt know that lol.
steve_154
06-08-2008, 12:13 AM
I've heard of alot of crank bearing failures in 04/05 hoda's where they bump up comp but don't replace crank bearings or beef up crank. i heard yoke had a similar problem in ohio last year but that was a BIG motor!!! I use amsoil, i freshened the top this winter and the wrist pin was gauld a bit, but not as bad as i've seen.