Indawoods Bible Query - correct for RB PJ?

A reference for the PWK carbs...
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Indawoods Bible Query - correct for RB PJ?

Post by Goat » 01:39 pm Nov 21 2019

Do I just follow the normal Indawoods Bible for jetting steps to verify I am baselined at the right PJ for RB Carb?

I am not sure if the new RB low end circuitry negates or changes the normal (1-2.5 turns, fast idle) approach to verifying the correct PJ size is installed.

My new RB makes the bike a powerhouse. But on first couple starts and short test rides, it seems to put out more smoke than I think it should.
Ron included some extra jets with the purchase so it would be fairly easy to give them a try.

Thank you.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by bufftester » 05:41 pm Nov 21 2019

IIRC the RB mod starts at 7/8 turn out and then you do 1/8 or 1/16 turns, but basically the same process. The low speed mods are supposed to make the AS more sensitive. They used to send out a tuning sheet with instructions and all the jet info. Someone who owns and runs one will stop by and correct me.

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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 10:42 am Nov 22 2019

Thank you Buff
I did rx the instruction sheet from RB for tuning from the 7/8 position.
I should really do that meticulously, and then see if I still have a smoke concern, before jumping to any conclusion about jet size.
Duh!
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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 04:36 am Nov 25 2019

Hi Buff, I had tried to use the idle screw and think I had the slide so far up that it was screwing up the low speed ckt, so it was loading up every time i let it sit & idle.
Once I backed it off for no idle like the MX guys do, everything worked great. Low smoke, hardly any sponge... 2nd kick start on cold bike.
I will have to play with it a bit to see if there’s an idle setting that works or not, but I am happy.
The only place I noticed an issue for not having idle was on nasty downhills.
If I worried too much about crashing I could forget to keep a little throttle and she could die while I was clutching to keep some drag.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by rungrandpa » 10:51 am Nov 25 2019

I think the no idle for MX guys was before they had power valves and reeds. Interesting that it cleaned up the spooge.

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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 02:26 am Nov 26 2019

I got the no idle idea from one of the other 2T forums and found it again in this pdf. So thought what the heck.

https://www.millennium-tech.net/pdf/Jet ... trokes.pdf

Riding with no idle setting was interesting and I think I kinda like it (seems the bike runs cleaner and starts even better).
If you experiment with it, please let me know what you think.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by SS109 » 08:41 pm Nov 26 2019

KDX's are meant to idle. If it won't idle correctly then something is wrong.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 03:24 am Nov 27 2019

Thanks for confirming.
I will keep playing with it, as that is what I expected.
I do like the idea that I may have stumbled onto the logical source of my spooge.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by bufftester » 08:13 pm Nov 27 2019

Incorrect jetting is the source of all splooge. When it's rich, the larger charge has proportionately more oil which is not burned in the combustion process completely and comes out the tail pipe, and all other unsealed orifices lol.

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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 04:51 am Nov 28 2019

Ha! Jetting or leaky rings, maybe?
On the other orifice..... do you or others run a rubber band at the pipe to silencer junction?
And can you please remind me who has the snazzy KDX fender stickers?
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Re: Indawoods Bible Query - correct for RB PJ?

Post by KDXGarage » 10:15 am Nov 28 2019

Goat, do you have the rubber cover over the junction?

JulienD may have some kdxrider.net stickers.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 11:25 pm Nov 28 2019

I don’t have the rubber pipe clamp looking thing over the junction. (My bike came with woods pipe held on by a zip tie & safety wire.)
Didn’t know if others like to install the rubber clamp at the joint.
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Re: Indawoods Bible Query - correct for RB PJ?

Post by KDXGarage » 12:58 am Nov 29 2019

I think most everyone runs the stock part. (rubber tube thing)
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Re: Indawoods Bible Query - correct for RB PJ?

Post by Goat » 01:40 am Nov 29 2019

Cool. Ty. I’ll get one then.
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