RB and Jeff Fredette
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RB and Jeff Fredette
Has anyone run the RB modded head and carb with a cylinder ported by FRP? I already have the RB mods done and thought about sending the jug off for some massaging.
MadMax
Jedi Master Team 5150
Jedi Master Team 5150
- scheckaet
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It's been tried before and as far as I can recall, they didn't match too well, bike didn't run well.
02 KX 200 hybrid: RB head and carb
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Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
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Whoever cuts your ports should cut your head. Don't see anything wrong with carb mods on anything with a PWK, in any porting configuration....Just don't expect the jetting to be perfect without fiddling on your part. That's all pretty well ironed out on a stock cyl KDX w RB carb.
'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
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RB and Jeff Fredette
Mine work well together. I noticed gains EVERYWHERE...I have RICHENED the Carb Circuits Slightly ( a tad larger on the Pilot) & adjust the Airscrew & Needle as Needed....I did Feel a Much Larger Power Increase from the Lower to Mid Range & Top End Response is MUCH BETTER....I asked Jeff to do a Moderate Port Job. I have not ridden the 220 much since i bought the KLX450, but my 18 yr. Old Son, is planning to ride it, so I need to re-install the handlebars, install the New Seat Cover and tighten and re-inspect miscellaneous parts.......
"Growing Old is Mandatory, Growing Up is Optional"
2008 KLX450R
2008 DRZ400SM
2005 KDX 220R
1985 KDX 200A3
2005 KLX 125L (SONS)
2003 KTM 50SX Pro Jr
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Thanks to my 2008 Sponsers:
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John W Read Jr
2008 KLX450R
2008 DRZ400SM
2005 KDX 220R
1985 KDX 200A3
2005 KLX 125L (SONS)
2003 KTM 50SX Pro Jr
B Senior # 254/0092
http://sponsorhouse.loopd.com/Members/R ... fault.aspx
Thanks to my 2008 Sponsers:
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John W Read Jr
- Mr. Wibbens
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RB and Jeff Fredette
Carvr had a Fredette port job and replate
If memory seves...
The porting was not so much the problem as was the fact that the bore was out of round and the plating job was complete crap. Cylinder was all pitted as was the mating surface for the head
If memory seves...
The porting was not so much the problem as was the fact that the bore was out of round and the plating job was complete crap. Cylinder was all pitted as was the mating surface for the head
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- canyncarvr
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RB and Jeff Fredette
Mr. Wibbens wrote:Carvr had a Fredette port job and replate
If memory seves...
The porting was not so much the problem as was the fact that the bore was out of round and the plating job was complete crap. Cylinder was all pitted as was the mating surface for the head
His memory serves him well. It was out-of-round and the re-plate job was pathetic.
I tried getting that cylinder (ported for improved bottom, no racing, pump fuel...and leave the exhuast alone) to run for at least a couple of years. 1. It never did, and 2. An OEM cylinder worked (and works) MUCH better.
The exhaust port was modified, too. Just a bit of a 'notch' in the middle of the top. The result (apparently..I'm not a Port Doctor..and I don't play one on TV) was a continued battering of the sub-port drums, particularly the RH drum. Broke one in 1/2. The brand new replacement drum had the teeth chewed up.
US Chrome did the replate. The cheesecloth effect they left it with was advertised as a +: A place for oil to live.
BS.
Two local engine builders saw the cylinder after it was 'ported'. Both expressed incredulity that such lousy work would EVER leave a shop! And THOSE comments were NOT made about the re-plate.
I don't know who did the port work on my cylinder. I sent it to FRP. Maybe it was 'Billy Bob's' tryout jug.
Consider the source
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- Mr. Wibbens
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RB and Jeff Fredette
Well I'll be, hell musta froze over
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RB and Jeff Fredette
Holy S**t!!! I thought Wibby was replying to an old post untill I noticed the date...
Last edited by Brian on 03:27 pm Jun 16 2012, edited 1 time in total.
KX 250, KDX 220, KDX 220, KDX 200, CR 80
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I don't believe in a society where the thrill of living is traded for the safety of existance---Nick Inatsch
- Mr. Wibbens
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RB and Jeff Fredette
Musta been a pretty slow day at CCM
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- Varmint
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Re: RB and Jeff Fredette
Me too. Thought this was an old post. Glad to hear from you CC!
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RB and Jeff Fredette
Hey Carvr! I was just getting on here when you were leaving. Thought I smelled bad... Nice to hear you're still around.
Fletch
89 kdx 200 with 99 rm125 forks
89 kdx 200 with 99 rm125 forks
- canyncarvr
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RB and Jeff Fredette
Not that I'd know you don't......Fletch wrote:Hey Carvr! I was just getting on here when you were leaving. Thought I smelled bad... Nice to hear you're still around.
Mr. Wibbens wrote:Musta been a pretty slow day at CCM
Every day is a s-l-o-w day where I be.
Maybe there's a connection between the two?
Nah! That couldn't be.
Consider the source
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RB and Jeff Fredette
Welcome back CC
I've been trying to keep this place together while you were gone, it has been tough.
I've been trying to keep this place together while you were gone, it has been tough.
'08 KTM200xc
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy