Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Jetting the RB carb mod
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="canyncarvr, post: 712860, member: 16552"] There are some still stuck with their original point of view of the rb-modification on the pwk...that its jetting picayune-ish-ness rendered it unsatisfactory. That's unfortunate. They're missing out on a huge benefit. For starters, don't assume ron (of rb-designs) has ever seen the carb you're dealing with. Verify that. Just because it has a downstream divider does not mean it's ever seen ron's shop. You mention a slide of '??' Ron's slides are marked specifically to indicate if he's cut it or not. If the slide has NOT been cut, then that's a for-sure indication that it's [b]not[/b] an rb-modified carb. Also, the mention of the AS not having any effect is odd. Granted, a 55 pilot is pretty big, but generally speaking, ron modifies the pilot circuit in such a way that makes it much [b]more[/b] effective than oem. What size carb? Another clue.....if it hasn't been bored, it [b]also[/b] is not an rb-modded carb. I don't think he bores EVERYTHING, but that is usually done to (at least) make up for the space the divider takes up in the airstream. Where'd the R1469M come from? Ron has generally (emphasis on [b]general[/b]) used 'C' and 'D' tapers in his carbs. I hesitate to say, 'Call ron.' He would know the carb by the name of the owner (if it hasn't changed)..but please don't waste his time if it's a carb he's had nothing to do with. Even if it is one of his pieces of handiwork that doesn't sign you up for an hour of his on the phone.....and it's not even your bike. If you do call, maybe have the slide in hand so he can tell you the identifying marks he stamps on his work. Keep in mind that sometimes he modifies the jetblock (changes the heighth of it) of some PWKs such that what you think might be suitable needle-wise won't be (suitable, that is). Like.....why such a long L1? You list an 'M', which is not a direct cross to a keihin number, but is longer than an 'K' and shorter than an 'N'..so it is [b]shorter[/b] than an keihin 'G' L1. Why isn't that richer (you say 1/2 clip [i]leaner[/i])? The proof of the pudding comes from JD's spreadsheet which shows that an R1469M/3 compared to a DGK/3 (both with a 55/155/#7TV) is [b]richer[/b] from 3/16 all the way to 3/4 throttle. So...there a few things amiss in the original post, methinks. Generally: For starters, find out if it's an rb-modified carb. A further btw.... mr. ron has modified carbs for far more than green bikes! Let us know. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Jetting the RB carb mod
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom