“The Original” Power Pump w/ALJ is very easy to tune, meaning you can start getting quicker, more crisp throttle response almost instantly. This improves acceleration and power as a result, and of course makes you a better rider. This pump is great because it is essentially bolt-on power for the Honda CRF450X. There is no need to be an engineer or professional rider to get more power and throttle response out of your bike, parts like this can do the job nearly as well. The best part is that no drilling or modifications are required. Unlike some parts which are nearly impossible to install, and require you to rip apart your entire bike, “The Original” Pump from R&D Racing can be installed easily for instant improvement. At $100, it is also not a huge detriment to your wallet for the improvements it provides. “The Original” Pump fits most FCR-MX carburetors, including the Honda CRF450x. I would recommend this part to anyone interested in quick effective performance increases, to both track and trail riders.

Related posts:

1. R&D Racing Keihin Power Bowl for the CRF450X
2. CRF450X R&D Racing Products Power Bowl Eliminates Hesitation and Bogging
3. Quick Shot Acclerator Pump for CRF450X FCR Carb

Loose fuel screws which plague many riders, especially those of the Honda CRF450X, are a thing of the past with the Flex-Jet Fuel Screw. The product has the ability to hold its setting no matter how much vibration , something many riders will be happy to hear. This product is excellent for both track and trail riding, and is almost essential for those who are sick of burning their fingers, or having any sort of hassle with their bike’s fuel screw. This product fits most bikes, including the Honda CRF450X. Installation is a breeze and the price is worth it, considering the amount of hassle it saves. The R&D Flex Jet Remote Fuel Screw can be found at R&D Racing

Related posts:

1. F2Racing.net Demissions “PowerBack” Kit for the Honda CRF450X
2. R&D Racing Keihin Power Bowl for the CRF450X
3. Boyesen Engineering Power Wing for the CRF450X

The F2 racing Fast-Cap is a product developed by the great minds at F2 racing, which is designed to keep the flow of the fuel constant. When testing the world’s fastest bike, researchers at F2 noticed that it would start to “run lean” at very high speeds, as the stock float bowl cap allows fuel to flow away from the center, where the jets are fed. With this $30 cap, performance is improved dramatically, as the fuel flow is more direct. At sustained high speeds, the problem of the bike “running lean” or not getting enough fuel, is eliminated and a far more consistent top speed is achieved. The Fast-Cap is a relatively small after market part that fits on to an existing carburetor. F2 claims that in nearly any kind of racing, the top speed is not only more consistent than with the stock, but also higher. On the world’s fastest dirt bike they were able to obtain another 800 RPM and an extra 6 miles per hour in the top speed! And this was with no other modifications, just the simple $30 F2 Fast-cap.

This product has been proven to be beneficial not only to pure racers, but also for trail riders. The cap is said to achieve a far more constant fuel flow, which means a far crisper throttle response, exactly what many trail riders are looking for in a product. Reviewers have claimed that they saw a definite increase in smoothness over the stock setup, especially in uphill climbs and large jumps. The Fast Cap is also excellent at improving crispness across obstacles and turns, simply because it is better at controlling the fuel flow than the stock parts. This smoothness in control and throttle response means that many people will become more confident riders, never having to worry about stutters or slight losses in power, at the top of a hill or jump, where it is needed most. The Fast-Cap fits all FCR and Kehien 2-stroke carburetors, comes in red or orange, and is very comparably priced at $30.

Check out the F2 Fast-Cap at F2 Racing

Related posts:

1. R&D Racing Keihin Power Bowl for the CRF450X
2. R&D Flex Jet Remote Fuel Screw for CRF450X
3. CRF450X R&D Racing Products Power Bowl Eliminates Hesitation and Bogging

Another new product on the market is the Power Bowl, a product recently released by R&D Racing. This billet aluminum float bowl not only has more fuel capacity for the times your carb burbles over the breaking bumbs or choppy whoop sections, it also is tunable and has a more powerful accelerator pump. You can tune the leak jet to achieve better timing for the accelerator pump which in turn cleans up your pilot circuit for a crisp throttle response. Owner and designer Dean Dickerson explains his product like this: “With the advent of high performance 4 stroke engines, carburetor hesitation is a far too common occurrence. Temporary lack of fuel supply, caused by air pockets finding their way to jet passages, also cavitation in the accelerator pump, can quickly deflate a rider’s confidence in his machine. The R&D Power Bowl is a sure fix for these problems. During hard landings and high speed impacts, excessive fuel splash currently exists. Splashing coupled with excessive clearance around the production fuel baffle, allows air pockets to reach the main and pilot jet, resulting in an extreme lean condition, commonly known as bogging.

“This new carburetor bowl, designed with our new Zero Tolerance Jet Chamber, minimizes existing clearances eliminating the possibility of fuel evacuation around the main and pilot jet area. (no bog).”

Most of that reads like Chinese to a mechanically retarded person like me, but Dean insists that his product is the answer until all production bikes have electronic fuel injection figured out.

For more info on the Power Bowl, go to www.randdracing.com.

http://www.randdracing.com/cart.php?m=product_detail&p=45

Just a little more info from their site for you.

A BETTER SOLUTION!!!
R&D’s Power Bowl, the cure for unpredictable carburetor performance, common in todays motocross bikes.

MIKE ALESSI #800
My bike runs cleaner around the whole track …no bog, no hesitation any where, it also quicker off the start.
I used the Power Bowl on my RED BULL Factory KTM bike for the entire 2007 East Coast Supercross season,
thanks R&D, for a great product.

PROBLEM SOLVER
With the advent of high performance 4 stroke engines, carburetor hesitation is a far too common occurrence.
Temporary lack of fuel supply, caused by air pockets finding their way to jet passages, also cavitation in the
accelerator pump, can quickly deflate a riders confidence in his machine. The solution? ”R&D’S POWER BOWL”
the complete answer to a real problem.

JET CHAMBER
During hard landings and square edge impacts, the production Keihin carburetor design, allows fuel to splash
away for the main and pilot jet chamber. Jets temporarily exposed to air pockets, will cause any engine to misfire,
commonly knows as “BOG”

The R&D Power Bowl, is designed with the new ”ZERO TOLERANCE JET CHAMBER”.
This new design redirects fuel during hard impacts, creating maximum fuel exposure during extreme conditions,
eliminating the possibility of fuel evacuation around the main and pilot jet area, completely eliminating the possibility
of misfiring.

ACCELERATOR PUMP
R&D’s ANTI-CAVITATION accelerator pump is state of the art, designed with two separate fuel ports. Port one,
is positioned at the HIGHEST point in the A/P chamber, allowing entrapped air to escape through the leak jet orifice.
Port two, is isolated LOW in the fuel sump, assuring ‘FUEL ONLY’ into the venturi, unique to R&D’s A/P design, and is
the key to our superior performance.

PUSHING THE ENVELOPE
With all the new advances in the ”R&D POWER BOWL”, we also included an externally adjustable leak jet for fine tuning,
it’s just a quick and easy hand adjustment. The ball check valve has also been redesigned, relocated at the bottom
of the pump cover for a more consistant fuel supply. The stock steel ball in the check valve has also been replaced
with a nylon type for an improve responce time during hard landing and hard impacts.

KIT INCLUDES:
*Power Bowl w/ALJ
*Accelerator Pump Cover
*O-Rings
*Linkage Spring
*Diaphragm Spring
*Instructions
*Sticker

ADVANTAGES:
*Easy Tune Leak Jet (ALJ)
*Bolt-on Power
*Easier Starting
*Instant Throttle Response
*Improved Acceleration
*Eliminates Hesitation and Bogging
*Better Holeshots
*Reduces Hot Engine Stalling
*Bolt-on product that requires no modification
*Available for all current 4 Stroke MX machines.

30 DAY MONEY BACK GUARANTEE

“DOLLAR FOR DOLLAR, THE BEST PERFORMANCE IMPROVEMENT”

“R&D’S POWER BOWL, BETTER THAN FUEL INJECTION!!”

“TRACK & TRAIL FRIENDLY, EZ TUNE DESIGN”

Related posts:

1. CRF450X R&D Racing Products Power Bowl Eliminates Hesitation and Bogging
2. CRF450X R&D Racing “The Original” Power Pump W/ALJ
3. Quick Shot Acclerator Pump for CRF450X FCR Carb

With a street price of about $40 the Wirtz Quick Shot accelerator pump cover is a great addition to your CRF. The aftermarket accelerator pump covers help put more fuel in the intake when you crack that throttle open. I personally use one by Boyesen. This mod does have it’s opponents though. It’s a part that may or may not improve the feel of your bike depending upon your riding style. If your slow on the gas and give the motor plenty of time to respond on its own then this mod isn’t for you. If however you want a snappy ride try one of these out.

Compared to some others on the market this item is made out of billet aluminum while some of the others are cast.

Here’s the manufacturers detail and a link to the product on their site.

Quick Shot Stock accelerator pump covers permit only a 60% – 70% fuel charge in the pump chamber. Turn the throttle and air in the chamber is compressed and fuel is delayed. The result: Hesitation or Bog. The Wirtz QuickShot cover completely fills the pump chamber with fuel, and provides instant fuel delivery, eliminating the hesitation and bog.

*Fits all 4-Stroke Keihin FCR carburetors
*Instant response to throttle movements
*Improved low end performance
*Reduced hot engine stalling
*No modification required – simple bolt-on

http://www.wirtz.net/2/product_detail.php?producto_id=237

Related posts:

1. CRF450X R&D Racing “The Original” Power Pump W/ALJ
2. CRF450X R&D Racing Products Power Bowl Eliminates Hesitation and Bogging
3. R&D Racing Keihin Power Bowl for the CRF450X

R&D Racing Products has released the new Power Bowl.  Which hosts tons of improvements over the stock bowl.  I’ve been waiting for a good picture of this thing for a while as computer renederings were the only thing available.  In addition to function this carburetor bowl has bling factor off the charts.  Read on for the details from the manufacturer’s site.

MISSION ACCOMPLISHED!!!
R&D’s Power Bowl, the cure for unpredictable carburetor performance, common in todays motocross bikes.

MIKE ALESSI #800
My bike runs cleaner around the whole track …no bog, no hesitation any where. Feels quicker off the start, this will be on my RED BULL Factory KTM bike for the entire East Coast Supercross season.

PROBLEM SOLVER
With the advent of high performance 4 stroke engines, carburetor hesitation is a far too common occurrence. Temporary lack of fuel supply, caused by air pockets finding their way to jet passages, also cavitation in the accelerator pump, can quickly deflate a riders confidence in his machine. The ”R&D POWER BOWL” is a sure fix for these problems.

JET CHAMBER
During hard landings and high speed impacts, excessive fuel splash currently exists. Splashing coupled with excessive clearance around the production fuel baffle, allows air pockets to reach the main and pilot jet, resulting in an extreme lean condition, commonly known as ”bogging.”

The ”R&D POWER BOWL” designed with our new ”ZERO TOLERANCE JET CHAMBER”, minimizes existing clearances eliminating the possibility of fuel evacuation around the main and pilot jet area. (no bog)

ACCELERATOR PUMP
Our ”ANTI-CAVITATION” Accelerator pump is State of the Art, designed with two separate fuel ports. Port one, is positioned at the highest point in the fuel chamber, providing a natural purge, allowing entrapped air to escape through the leak jet orifice. Port two, is isolated low in the fuel sump area, assuring ‘FUEL ONLY’ into the venturi.

PUSHING THE ENVELOPE
With all the new advances in the ”R&D POWER BOWL”, we also included an externally adjustable leak jet for fine tunning, it’s just a quick and easy hand adjustment. The ball check valve has also been redesigned, relocated at the bottom of the pump cover for a more consistant fuel supply.
The stock steel ball in the check valve has also been replaced with a nylon type for an improve responce time during hard landing and harsh impacts.

*Eliminates hesitation and bogging
*Better Holeshots
*Provides instant response to throttle movements
*Starts easier
*Reduces hot engine stalling
*Improves low end performance
*Bolt-on product that requires no modification

R&D’S POWER BOWL, BETTER THAN FUEL INJECTION!!

Available for all current 4 Stroke MX machines.

Distributors:
USA: WWW.SUDCO.COM
Phone:323/728-5407

EUROPE: WWW.SPLIT-STREAM.COM
Phone:0031-(0)135.287.233

AUSTRALIA: RMF RACING
Pone: 0411056567

Related posts:

1. R&D Racing Keihin Power Bowl for the CRF450X
2. CRF450X R&D Racing “The Original” Power Pump W/ALJ
3. Quick Shot Acclerator Pump for CRF450X FCR Carb

Lenhartsville, PA – Boyesen Engineering has developed the PowerWing™, which increases horsepower and torque on 2 and 4 stroke bikes. On 2 strokes, the PowerWing improves power from idle to midrange with no loss on the top end. 4 strokes see power boosts from idle through over-rev. The Boyesen PowerWing simply outperforms all other carburetor dividers on the market today.

Motocross Action has determined, “It’s more responsive to throttle input, picks up sooner and runs cleaner,” giving it a 4-star rating. Get more velocity, more response and more power with PowerWing.

The power now is available for the CRF450X and CRF450R at www.crfsonly.com

Related posts:

1. R&D Racing Keihin Power Bowl for the CRF450X
2. CRF450X R&D Racing Products Power Bowl Eliminates Hesitation and Bogging
3. CRF450X R&D Racing “The Original” Power Pump W/ALJ

The kit contains the following items;

1. Stainless steel tweezers, for pulling the new screw top and needle out, if you have to make changes
2. Slavens racing adjustable fuel screw
3. new leak jet
4. new adjustable needle, which is a factory kehien needle race needle
5. new screw top for the slide to secure the new needle
6. Air injection block off, correctly shaped to match the exhaust port
7. 2 – billet air box plugs
8. stainless allen accelerator pump cover screws
9. stainless allen float bowl screws
10. stainless allen fuel spigot screw
11. stainless allen intact tract block off screw

The kit is available for all years of the CRF450X including 07. For 07 Honda changed the needle design and it requires a little different setup so be sure if you order the kit you get one for the correct year.

The most unique thing about this kit is the air injection block off. It’s correctly shaped to match the exhaust port on the CRF450X head and according to the manufacturer the bike will run cleaner and crisper with the fitted piece as compared to an ordinary unit.

They warranty the workmanship and that everything will fit right.

According to Dirt Bike Magazine “The Power Back kit should be the first thing you buy for your bike!”

F2Racing.net also has other items that will be available for the CRF450X soon, we’ll let you know when we see them.

Related posts:

1. R&D Flex Jet Remote Fuel Screw for CRF450X
2. Honda Bulletin for 2005 CRF450X Closed Course Competion Modifications…
3. Honda CRF450X dry weight

So here we go, directly from the bulletin……..
2005 CRF450X
Competition Use Only

It is the dealer’s responsibility to investigate any potential law violation pertaining to these modifications. You should refer to the procedures based on a customer request to ride the CRF450X in closed course competition only.

To increase performance for closed course competition use only, follow the steps below. You must make all of the changes to gain more performance.

1. Confirm the customer will be racing the CRF450X on closed course race circuits such as motocross tracks where they will not be violating noise or emissions regulations.

We recommend you write the following or similar text on work order, sales invoices, or parts receipts:
Customer understands parts installation and performance modifications are not emissions or noise compliant and are for closed course competiton use only. Riding in non-competition, non-closed course setting may result in the customer receiving fines or penalties for vioulation of noise limits or exhaust emission laws.

2. Replace the standard CRF450x camshaft with a CRF450R camshaft.
-Camshaft
P/N: 13110-MEN-670, H/C: 7530843

3. Replace the standard CRF450X exhaust header pipe and protector with CRF450R parts. Also replace the exhaust gaskets.

-Exhaust Header Pipe
P/N: 18320-MEN-730, H/C:7819618

-Exhaust Protector
P/N: 18323-MEN-730, H/C: 7819626

-Exhaust Gasket
P/N: 18291-MEB-670, H/C: 6844559

4. Replace the standard carburetor parts.

-Main Jet (from #142 to #162)
P/N: 99101-357-1620, H/C: 0419200

-Jet Needle
Change the clip position from #2 to #5

-Leak Jet (from #70 to #65)
(Accel. pump bleed)
P/N: 99108-KSC-0650, H/C: 7660558

5. Set the pilot screw to 1 3/4 turns out.

6. Remove the diffuser pipe from the muffler.

7. Increase the airbox opening as follows:

-Remove the subframe and airbox.

-Drill out the two pop rivets holding on the air snorkel and remove it.

-Cut othe section shown inside the raised cut line while wearing eye protection.

-Reinstall the airbox and the subframe.

9. Behind the left side cover there is a “natural” color main coupler. On the ECU side of this natural coupler there is a Pink wire. Underneathe the Pink wire is a blank terminal plugged with a rubber cap.

Swap the positions of the Pink wire and the rubber cap. Reconnect the coupler to the wiring harness. (In modified form, the Pink wire is NOT connected to any other wire.) For more pink wire information click here.
10. Remove the noise and emission compliant label from the rear fender.

Remind the customer these modifications are for closed course competition use only.

There you have it!!

Related posts:

1. Finally some real logic on what the pink wire mod for the CRF450X does.
2. 2005 Honda CRF450X Development
3. 2005 Honda CRF450X Specifications