Kustom Kraft heard of them?

[KXT500]

the side of my cylinder has kuston kraft carved into it. jsut curious about it. what should i expect when i pull the top end?

[mikesmith]

I had Kustom Kraft resleeve my 1979 RM125 back in 1981,so I would say some one had your cylinder sleeved.

[JBKX]

KUSTOM KRAFT BUILDS AND PORTS ENGINES.  I HAVE 2 KX500 MOTORS THAT HAVE KUSTOM KRAFT TOP ENDS, BOTH HAVE HAD PORT WORK DONE BUT NOTHING RADICAL.  I BOUGHT THE MOTORS WITH THE WORK DONE ALREADY AND BOTH RUN STRONG!  WWW.KUSTOM-KRAFT.COM
ONE OF THE MOTORS IS IN A 86 TECATE ALSO!!!!

[Hogwylde]

Unfortunately, yes....I've heard of them.  They are located in the Chicago area.  My bro-in-law just picked up a KX5 that got there logo carved on the cylinder also.  I just had to pull the head on it to replace a leaking head gasket and found a stupid sleeve in the thing.  That sux!  Once it's worn beyond it's service limit, you will have to throw it away and get a new jug.  At least if it had been replated, you could replated it again and again back to original specs.  I don't know why people stick those stupid sleeves in there.  

I will have to admit that they at least did match the ports very nicely.  Doesn't appear to have any porting mods done though.

[KXT500]

just put a new sleeve in it. that is what keeps la sleeve in business

[crazyryan]

You know that you can switch sleeves out right.  You don't have to throw the jug out.  Isn't anyone out there running 540 kits? I say the plating is a problem because I've seen it flake and it costs alot to replate. But what do I know?