00 kx250 crank concern

[Nalco]

I have posted before about my cylinder head but looking at my crank, the wear near on the crank near the rod concerns me. Is this normal or may be what cause the damage on the head and piston. I took the engine apart to clean the power valves and put a fresh top end in and saw all this. Performance was fine I guess but never did do a compression test. First time opening it up since I bought it a few years ago though ride time since I bought it has been very minimal. Thoughts? Thanks in advance

[KDXGarage]

It is not wear, it is damage. Something came apart and bounced around in there until it got pulverized.

[Nalco]

Thought so. I have no play up and down and the rod moves back and forth smoothly. Still replace it?

[Motox367]

Looks like it's not going to run much longer sry to say. Is a peice of the piston skirt missing? Oem crank probably original.  I personally would recommend full rebuilt ?? of you want it to last and have performance

Edited February 24, 2017 by Motox367

[Nalco]

No piston pieces missing just had top damage. That's my thought, if I done replace it and it goes a new motor is more costly

[Motox367]

Ok??

[Nalco]

I'd a whole new crank needed or just bearings and seals?

[TheKX500boi]

12 hours ago, Nalco said:

I'd a whole new crank needed or just bearings and seals?

Probably whole crank since the damage is on the actual LH and RH side of the crank.

[DylDog]

dont get a wiseco crank

[Nalco]

Was going to do a rod kit and new bearings but pricing for a whole new crank kit is about the same. I heard a year ago wiesco cranks had issue but since then they are better. What do you recommend?

[DylDog]

oem, i'd personally look for a used one on ebay to rebuild. heard hot rods work well for people.

Edited February 26, 2017 by DylDog

[Nalco]

So replacing the whole crank wiseco everything isn't good?

[TheKX500boi]

1 hour ago, Nalco said:

So replacing the whole crank wiseco everything isn't good?

No. Dont get a wiseco crank. Go oem or Hot Rods.

[Babywolf]

Ran a wiseco crank in my 00 kx250 for many years, longer than oem, not sure why all the wiseco haters on TT but I sure got good results with mine!

[Nalco]

Spoke to a business that said some had issues a few years back with them but in the last year they have been alot better. Could have been a metal issue. I was thinking of putting s new rod kit and bearings but for almost the same price I could replace the whole thing fresh with a new wiseco kit. Then no worries of old parts.

[DylDog]

3 minutes ago, Nalco said:

Spoke to a business that said some had issues a few years back with them but in the last year they have been alot better. Could have been a metal issue. I was thinking of putting s new rod kit and bearings but for almost the same price I could replace the whole thing fresh with a new wiseco kit. Then no worries of old parts.

 some people run them with good luck but I wouldn't risk it was such a critical engine part.  I've also read that their main bearings are crap

[Nalco]

Even though the crank has some marks and dents does it need to be replaced also then or can I do new bearings and rod kit? Going oem or hot rods crank kit adds more then double. Not looking to spend a bunch of money to ride periodically. Aldo don't want to not replace one thing that will cause me issue too. That's my problem

[DylDog]

http://m.ebay.com/itm/00-03-2000-KX250-KX-250-CRANKSHAFT-FOR-PARTS-ONLY-NEEDS-BEARING-ROD-CRANK-MOTOR-/262846889614?nav=SEARCH buy this and a crank rebuld kit and you'll likely end up cheaper and better then w the wiseco.  Send the crank and parts to someone like Ken O'Connor.  It's a dirtbike there not gonna be cheap 

[Nalco]

Thanks for the info, so my crank isn't salvageable?

[Motox367]

13 minutes ago, Nalco said:

Thanks for the info, so my crank isn't salvageable?

As long as the thrust washers haven't been chewed off either side thes yes it's salvageable.  Just go with what you can afford . If installed right you'll be good to go??