Getting RB'ed

Questions and Answers about the best carb and Head mods available for the KDX.
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Ondatrail
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Getting RB'ed

Post by Ondatrail »

Mailed out my head and carb on wed. Can't wait to see the results :prayer: :supz: :prayer:
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Post by Jeb »

Not only will you like it, but that buddy of yours that rides the mustard-colored bike will be jealous!
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Post by blimpman »

Got my carb RB'd two weeks ago.... :supz:
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Post by Ondatrail »

Got my head and carb back craftsmanship is amazing :prayer: . I am so glad I sent it to Mr. Black and not a hack :wink: . Ride report coming soon.
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Post by Ondatrail »

Rode th bike today excellent mid and high but major bog idle to low any suggestions?
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m0rie
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Post by m0rie »

What jetting. Needle, clip position, main and pilot. Elevation and temp.
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Post by fuzzy »

Call him? READ, and LEARN to tune your ****. It doesn't take much to know how to do anything with these infanitely tunable carbs. I've put twin 38mm PWK's on a harley, and got them jetted clean....Listen to the bike, and wrench accordingly. That was a great setup, but lack of an accelerator pump didn't allow for an instant wick of the throttle...Didn't matter too much due to the harley's lazy nature from crappy crank timing in the first place...Just had to be slightly slow inittially w/ the right hand, and then she would GO. Didn't matter on a drag bike when you're leaving at 50% of the range in the 1st place. :supz:
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Post by Ondatrail »

Emailed Ron and he suggested to put a 38 pilot and one turn out on the air screw. This cured the bog from idle to low but then there was a bog from mid to high. (CEK needle installed at #3 position) Moved clip up to #2 and got better #1 is almost on the money. I plan on buying a CGK needle tomarrow and hope that cures it for the weekend race :supz:
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Post by Jeb »

Keep at it, dude, you'll get it and love it . . . good luck with your race.
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Post by skipro3 »

Go one clip richer on your needle. It will tell you which way you need to go richer or leaner. Move the clip closer to the pointy end one clip in case you don't know which way makes it leaner.
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Post by Ondatrail »

Turns out the local shop doesn't have needles in stock :sad: but I put the stock needle (Kehien- BGQ) in at #3 and it works just fine.

P.S. I've been calling the clip positon according to number (1-top 5-bottom) To not spend an hour saying something like "2nd clip position from the top". Because I heerd it refered to that way somewhere. Is it just more confusing? :roll:
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Post by canyncarvr »

Few things correct are more confusing than when they are wrong.

Image

Move the clip closer to the pointy end one clip in case you don't know which way makes it leaner.
:hmm:

I guess that works. I mean..if '...you don't know which way makes it leaner.', make it richer.
:hmm: :hmm:
Last edited by canyncarvr on 10:13 am Jul 25 2008, edited 1 time in total.

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Post by fuzzy »

'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
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Post by Ondatrail »

How do you order jet needles through sudco?
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Post by fuzzy »

Go to this page:

http://www.sudco.com/keihin_jn.html

Then call:

(323)728-5407 Monday thru Friday 8:30am-5pm (pacific time).
'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
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