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View Full Version : Plated Cylinders?


rooster300ex
09-03-2009, 11:13 AM
How do u know when a plated cylinder needs to be re-plated??
ZeroLogic
09-03-2009, 03:24 PM
When it is chipped or worn.
rooster300ex
09-03-2009, 08:12 PM
how much would it cost
kfx400rider03
09-03-2009, 09:16 PM
my kfx400 was about $400 i think i had other stuff done at the same time but i figgured the plating to be about 400
rooster300ex
09-05-2009, 09:22 AM
Damn 400 bucks. I can get a whole new cylinder for that!
kfx400rider03
09-07-2009, 07:58 PM
yeah i was thinking of getting it replated or a whole new cylinder but i juyst went with the plating
speedfreek
09-08-2009, 06:15 AM
You should to be able to get it re plated for less than $200. Here is a place that re plates them:
http://www.mt-llc.com/
Toadz400
09-08-2009, 05:16 PM
I didn't know KFX400's had plated cylinders.

It used to be that buying a new cylinder was cheaper than re-plating them but I'm sure prices have come down as it becomes more popular.
rooster300ex
09-10-2009, 07:07 PM
can u bore a plated cylinder without getting it re-plated.
CSR400EX
09-11-2009, 01:30 AM
Originally posted by rooster300ex
can u bore a plated cylinder without getting it re-plated.
no, but you can bore it and put a sleeve in the cylinder. i prefer plated cylinders as they seem to last longer IMO
Toadz400
09-11-2009, 01:29 PM
Originally posted by CSR400EX
no, but you can bore it and put a sleeve in the cylinder. i prefer plated cylinders as they seem to last longer IMO

I've got 300+ hours on my '05 YFZ. All stock and still running like a champ.

As far as lasting longer, I think technically the plated cylinders would last longer because of less friction and heat absorption. It all comes down to how it was built, broke-in, and maintained.
rooster300ex
09-12-2009, 10:37 AM
Does it have to be plated??
Toadz400
09-12-2009, 08:13 PM
Originally posted by rooster300ex
Does it have to be plated??

Does what have to be plated? What are you working on? If you have a plated cylinder you can have it bored and put a sleeve in place or the other way around.
rooster300ex
09-13-2009, 03:46 PM
Originally posted by Toadz400
Does what have to be plated? What are you working on? If you have a plated cylinder you can have it bored and put a sleeve in place or the other way around.

Does the cylinder wall have to be plated?? And i'm workin on an 01 kx250 2 stroke
Toadz400
09-13-2009, 05:08 PM
Originally posted by rooster300ex
Does the cylinder wall have to be plated?? And i'm workin on an 01 kx250 2 stroke

It either needs to be plated or have a sleeve put in place. Are you rebuilding the engine? If you're putting in a new piston and rings you should have it re-plated or buy a new cylinder if it's cheaper.
rooster300ex
09-13-2009, 06:27 PM
Originally posted by Toadz400
It either needs to be plated or have a sleeve put in place. Are you rebuilding the engine? If you're putting in a new piston and rings you should have it re-plated or buy a new cylinder if it's cheaper.

ok thanks for your help bud. yea i'm pretty sure the main bearings are shot, because there is alot of crankshaft play. and i will for sure put a new piston in her.