How much should I expect to pay for a 2005 RMZ250 bottom end rebuild?

[Mr. Rock]

my Xr used to do this.....

could be a problem with the kickstart itself

yea that would be awesome if it was just that and it was a cheap repair.. what do you guys think the chances of cracked engine are? or this being serious serious. i guess its hard to know not knowing the bikes history etc?

[Mr. Rock]

crank bearing $22 out a stock at the mo
piston about $350
full gasket set $300
would have to check $$ on conrod kit not listed on line

these are rrp would do them at a better price than shown here by a reasonable amount
personable i would strip it down slowly lookin to see what has gone wrong unless it is already stripped in which case you need to hope its all there and check every thing as you go

what type of piston.. is it forged can you get a not forged for motox bikes? i was looking at the JE forged piston kits?

right sounds like a good plan to strip down slowly.. and just replace what needs to be replaced?

[barty5]

what type of piston.. is it forged can you get a not forged for motox bikes? i was looking at the JE forged piston kits?

right sounds like a good plan to strip down slowly.. and just replace what needs to be replaced?

generally they are Prox pistons

[carver]

yea that would be awesome if it was just that and it was a cheap repair.. what do you guys think the chances of cracked engine are? or this being serious serious. i guess its hard to know not knowing the bikes history etc?

well, i used to put the xr in gear and rock it back and forward and it would come right

[scott411]

genuine kawasaki piston kits are only $280, (remember 05 rmz's are kawi's)

the cost will depending on what you want to do, it may be cheaper to buy a crank than to get it rebuilt depending on cost, i would stay away from the aftermarket cranks as we have had a few problems with them,

pm me with exactly what you are after and i can quote parts and labour if you need,

[Mr. Rock]

genuine kawasaki piston kits are only $280, (remember 05 rmz's are kawi's)

the cost will depending on what you want to do, it may be cheaper to buy a crank than to get it rebuilt depending on cost, i would stay away from the aftermarket cranks as we have had a few problems with them,

pm me with exactly what you are after and i can quote parts and labour if you need,

what type of problems did u encounter? i thort there could of only really been gains for getting aftermarket stuff..

[scott411]

mainly had it with 2 stroke cranks, have been to scared to put it in the four strokes, less than 5 hours with 2 kx85 cranks, hot rods from memory, out of china, and less than 2 hours on a 250 2t as well,

[Mr. Rock]

mainly had it with 2 stroke cranks, have been to scared to put it in the four strokes, less than 5 hours with 2 kx85 cranks, hot rods from memory, out of china, and less than 2 hours on a 250 2t as well,

fuk that sucks! any idea what might of caused that!? cause that cant be performance you should expect!

[scott411]

not sure what casued the problem, suspect it was not enough oil flow and then caused heat, either by lack of slots in conrod (pro x rods had this problems on KX85's and 125's for a while) or they are pressed together to tight,

[tommorth]

I put a prox rod kit in my ktm seems ok so far only 40 somthing hours though had herd at the time I did it the bearing they use isn't as good quality and the genuine one , the rod itself looked identincal though.

Gasket sets and rod kits for your bike can be had for slightly less than 130usd each plus post from the states .

It cost around 100 bucks to get my crank rebuilt and a couple of stuborn bearings pressed out by spectum.

280 for the genuine piston from scott sounds pretty good hard to do better than what the factory intended

Definitly best to pull it down before you start buying parts though.
Engines really arn't that hard to work on as long as you have a manual ,the money you would spend on labour for somone else to do it will pay for most of the tools you will need if you don't already have them.