Complete KX500 top-end rebuild instruction here!

[nirvanafan98]

Great information for a weekend mechanic like me .

[5hundo]

I had a question does anyone know for a fact the dual ring piston kit for 88-04 model kx500s will fit my 86 Kx 500?

[Jonnymotox]

I'm putting my 98 KX500 top end back together and I'm wondering if I should use anything on the Head stud Threads?
Reason for asking is I torqued the head with fresh gaskets, Base and Head gaskets and everything seems fine until I fill the radiators and while I'm putting the Pipe on I see Air bubbles coming out of one of the head studs. There is no Pressure in the cooling system! I'm also using "Orange" Antifreeze is this the problem?
I'm baffled should I use something on the Head stud threads to seal it up?
Thanks
Jon Marshall
Frazier Park,Ca

[Foxx4Beaver]

I use Yamabond to seal the studs.
what kind of head gasket are you using?

[Jonnymotox]

The thin metal head gasket
And Thanks too!

[Foxx4Beaver]

The thin metal head gasket
And Thanks too!

providing your cylinder and head mating surfaces are FLAT...OEM or Cometic head gaskets are the way to go.
did you lap the cylinder and head to be sure they were flat before assembly?

[Jonnymotox]

Yeah, just had it plated and had the cylinder and Head surfaced, I never have used anything on my Honda CR500s studs or Head nuts and Had this Happen, I have some Yama-Bond and I'm going back in the garage and giving it another go
Thanks again

[Patroller16]

Great read.   I just picked up a used 03 that I'm in the process of rebuilding.   Pretty neat bike.   Always wanted one, now I have one.   It's a crate bike but i have almost everything for it minus the jug, head, piston and kips set up.  Can't wait to hear this thing run.   Ill be looking and asking for a lot of advise hope that's ok with everyone.  Thanks for the great read.