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Pulled the cylinder apart and found the common stripped teeth, but got a nice surprize when one came out in 2 pieces!

What's the best replacement for these? Seems like new ones run about 50ea, was trying to keep this thing under a pretty tight budget though.

I was talking to Brock just last week, who is one of the owners of BDK racing in the UK. They machine zinc anodized steel copies of 88-92 KMX200 valves.

With the right adapter bushings/collars, they will work with the E series KIPS. So keep an eye out because they will soon have a listing on their website for left valve and bushing adapter kit.

Of the left and right powervalve + plus idle gear, which of yours were damaged?? I have only had problem with the left side valve, which I just replaced last summer and is already starting to strip again. The right side valve and idle gear are fine....And the rest of the stuff, including the center/main valve is steel anyways.

Left side gear teeth stripped, right side broken in half, idler is fine and main valve is fine

The valves are in stock, he will be getting back to me when they have a few sets of bushes made up. Then he will add a listing to the BDK website.

http://www.bdkraceeng.co.uk/KMX200.html

Current prices are:

£39.50 per valve or £72.00 for a pair

He estimated the bushes to be £10.00

Definitley let me know if you will, id love a set. More than I wanted to spend but seems worth it for the extra reliability

Like I said, I just replaced my left valve last summer when I found it was stripped. This is how it looked last week when I opened up the motor...Maybe 8-10 hours on this valve?

When I pulled the little round piece that you have to take off with a screwdriver or a coin, and when I did black oil came out is this normal or is something wrong?

spooge.
check newb thread for what and why (in my sig)

I got tired of the expense and trouble of having to replace those crappy aluminum valves twice a year so I just used JBWeld to fill those exhaust holes, problem solved. The center steel valve still worked which has the greatest effect and so I couldn't hardly tell the difference. I used to motocross that bike also and got many a holeshot with those holes filled so don't anyone tell how "essential" they are.

That's interesting. I have not heard from Brock for a month since I sent him his last reminder to keep be updated on the adapter bushing status............maybe I'll send him another one soon.