RB alternatives?

Questions and Answers about the best carb and Head mods available for the KDX.
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Flush
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RB alternatives?

Post by Flush » 11:44 pm Jun 15 2020

I recently picked up a KDX220 and honestly part of the reason I even considered a 220 was when I started my search last year I read all the reports about the RB head mod and RB carb mods and what a difference it makes to the 220.

As my luck would have it, it now appears there is no more RB designs. I haven't gotten a reply to my emails requesting a carb or head mod and it's been a while.

Everyone raves about Ron's great customer service, and while I don't doubt that, it sure would be nice if he would update his website or close it or something so people like myself aren't left wondering what is going on. It was only by searching here I discovered he apparently has retired.

Anyway perhaps he will eventually reply to my email and I can get one of his carbs and heads, but assuming he doesn't, are there any other reasonable alternatives to his 220 head mods and modified carb?

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Re: RB alternatives?

Post by KDXGarage » 12:09 am Jun 16 2020

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Re: RB alternatives?

Post by lucy » 05:38 am Jun 17 2020

After trying to find an alternative, I have I come up with 2 alternatives:

Ken O'Connor Racing kenoconnor07@aol.com $80 shipped

Arnie Cooper. arniecoo@q.com $150 shipped

Both of them want to know the current squish measurement.

There really isn't any magic to the head mod. The idea is to reduce the dimension of the squish band to .050" to improve combustion.

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Re: RB alternatives?

Post by TwistedRoot » 11:11 am Jun 17 2020

FYI: Ron is taking work and I have had a few email conversations with him regarding his carbs. Like he states, if he cant do it at his own pace, (semi-retired) he's not interested in the work. As stated previously he does not mod carbs, but sells new oem/modded PWK carbs.
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doakley
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Re: RB alternatives?

Post by doakley » 02:13 pm Jun 17 2020

Don't have much to add to that except I recently purchased a new OEM/modded PWK carb from Ron and had the head work done as well. (Note, you do NOT have to do the measurements with solder on the 220). That with an FMF desert pipe and Boysen reeds have really fired up my 220!
I understand you can get similar with Jeff Fredette as well.

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Re: RB alternatives?

Post by SS109 » 12:27 am Jun 18 2020

Ron is semi-retired but is still working last I heard. Contact him about buying a new carb. I guarantee you won't be disappointed with it.
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Flush
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Re: RB alternatives?

Post by Flush » 10:00 am Jun 18 2020

It's been over a week since I emailed Ron and have not heard back yet.

I told him in my email I'm not in a hurry and want to buy a new carb (understand he is no longer modifying used carbs)

From what I gather the head mods he does are good, but not so different than what others can do, it's more the carb mods that are "special"

If any of you have an inside inline with Ron and can get a carb and want to resell to me at a little profit, let me know.

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