Venturi Divider Modification

Along with cylinder porting, intake modifications can improve the rideability of your machine as well as improving the power.

Through extensive research in the flow characteristics, Rich has learned that the Venturi Divider System provides quicker throttle response and improved rideability at 1/2 and/or 1/4 throttle for 2-strokes & 4-strokes engines. 

Without a Venturi Divider System, the throttle slide acts as a "Wall" when open only partially. The air that "hits the wall" has nowhere to go except down and back out where it came from. This causes turbulence, which disrupts and slows down the air which is trying to flow under/past the throttle slide of the carb.

Mounted into both the backside (air-filter) and engine sides of the carburetor, the Venutri Divider slices the single air venturi going into the carburetor into 2 smaller, faster venturis via the Venturi Divider Plates. 

The Venturi Divider Plates increase the velocity of the intake air through the venturi, increasing cylinder filling which translates into quicker throttle response and more power off the line and out of the turns.

Even without the VForce3 Reed Valve System, this is truly one of the most effective modifications that you can make to your vintage 2-stroke motorcycle engine. Combined with the VForce3 Reed Valve System, a pipe and porting, the results are vintage machines which are faster and easier to ride than they ever hoped to be back on the day!

It should be noted that adding a Venturi Divider System is not just for vintage engines. This is truly one of the most effective modifications that you can make to your modern 2 & 4-stroke motorcycle carburetor as well.

Vintage Mikuni Carb with single Divider Plate on both sides

Vintage Mikuni Carb with two Venturi-Divider Plates on both sides of the slide.

Modern Mikuni Carb with two Venturi-Divider Plates on both sides of the slide.

Vintage Mikuni round slide carb with Triple-Venturi-Divider Plates installed. The Triple-Venturi-Divider Plates are the best at making a large carburetor behave like a small carburetor.

Vintage Mikuni round slide carb with Triple-Venturi-Divider Plates and a "Intela Jet" installed.

The "Intela Jet" allows the user to make fuel adjustments via a remote on the handlebar.

If you have any questions regarding my work (what I do) and my experience, please call me as I would be more than happy to talk with you regarding how I can meet your needs.

Please see the Gallery section to see pictures of my collection.

Please NOTE: While we are a dealer for the entire line of Wiseco Piston and Gasket kits, we do not stock and sell these items on a daily basis. Please call and we can talk about incorporating these items into a packages along with the porting work.

Contact Rich @ 1-702-858-9177 or via email at <racerclam@msn.com> for all your porting and high-performance engine modification needs.

The address is P.O. Box 461371, Leeds Utah 84746.

Another Vintage Mikuni Carb with two Divider Plates

Modern Kehin Carb with a Divider Plate, tapered bore,Intelejet (with the blue tube) and other mods