Power Valve Replacement?

RalleyTuned · Post by **RalleyTuned** » 05:46 pm May 27 2014

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.

Gotanubike · Post by **Gotanubike** » 05:57 pm May 27 2014

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.

RalleyTuned · Post by **RalleyTuned** » 06:03 pm May 27 2014

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

Gotanubike · Post by **Gotanubike** » 06:24 pm May 27 2014

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

RalleyTuned · Post by **RalleyTuned** » 06:44 pm May 27 2014

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

Gotanubike · Post by **Gotanubike** » 08:05 pm May 27 2014

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?

kdx 220r drz 400e · Post by **kdx 220r drz 400e** » 02:55 pm Jun 10 2014

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?

Post by **scheckaet** » 03:52 pm Jun 10 2014

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

Jaguar · Post by **Jaguar** » 10:10 pm Jul 12 2014

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.

Gotanubike · Post by **Gotanubike** » 10:51 pm Jul 12 2014

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.

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