250-500cc Husqvy wr 300 on motocross track

Do you have the gold valves in yet? What is your impression?

Yes the gold valves are in, unfortunately 2 laps into my ride at Comp Edge I blew it up. Apparently the "black edition" head I got was 20 thousands out of tolerance and my piston smacked the lip blowing the helicoils out of the cylinder. Luckily only the piston was damaged so I had a shop take the 20 thousands off the inside diameter of the lip on the head and put a new piston in it. I'll be going out to Racetown 395 this weekend and I'll report on the valves.

Ouch! That's sucks Motovet! Glad to hear you didn't have to do a complete tear down and rebuild. Good luck racing this weekend.

Ok so I rode both Sat and Sun at 395, happy to report that the GVs were a success. Action on both ends was very smooth, I think the shock was actually better than the forks but I think I may have the shim stack on the forks a little too stiff for my abilities. The forks were great when I was fresh but beat the crap out of my hands once I got tired.

Are you using single stage valving?

Can you post the shim stack that you are running now with the gold valves, and the shim stack(s) that you were running in the stock forks that didn't work?

I'm running two stage valving

On the forks with GVs
Low speed
(3) .15x24
(2) .10x24
.10x12

High speed
(3) .15x24
.10x21
.10x19
.10x17
.10x14
.10x13
.10x12
.10x11

Kyle I'll have to measure the shims I took out, I actually kept the stacks together with the old valves on zip ties, I know writing it down would have been simpler but if the GVs were a total fail I wanted to have a super quick solution I could revert back to.

I'm guessing your getting some sharp, spikey feel with these stacks?

Yep, especially as I get tired.

Any suggestions?

Yes, lighten or add some progression to your LSC stack.

Thanks for posting! I'd be curious to see what was on the stock valves too, when you have a chance to measure them.

Does this gold valve setup have the midvalve converted to a check plate, or are you still running a damping stack on it?