Compliments Yamaha Motor   -   click pic to visit Official Yamaha Website

Yamaha V-Max

Factory
Pro Series "Y11"


Mark P. - Massachusetts - 2019
 
Finger and screwdriver Adjustable "Long Boy" extended Yamaha fuel screws -NOTE: 3020m1 is too short

Emulsion tubes for V-Max

HDJ style needle jet atomizes fuel better. Potentially Better mileage and Better power. Even works with dynojet kits.


F-Pro Nickel plated
Emulsion Tubes
replaces Yam pn: 26H-14941-90-00

HDJ Hi Dispersement Jet style
$132 / 4pcs
1. Choose your shipping method
2.




August 2014

Hi Marc!
Today I installed HDJ tubes (without sandpaper;)
It's amazing mod! Power delivery has become more smoother,
low end and mid range more aggressive. Now I can't hold my
Max when i open throttle wide on 1 and 2 gear)
Everything fine, but a bit lean on top end (<7k rpm), need
1 step larger main jet. Will fix it later.
You wrote best carb tuning guide! Thank you!
I will recommend HDJ to Russian Vmax community!
Best Regards,
Igor.


"HDJ" emulsion tubes / needle jets

HDJ style - High Dispersement Jet fuel delivery

Lowend too rich? Poor mileage? Blubbery when hot?

Factory Pro manufactures replacement needle jets (called emulsion tubes by some) to factory pro HDJ specs. The needle jet orifice wears oblong in as little as 20,000 miles and is particularly aggravated by "in town", low rpm operation. The result is excessive richness at low rpm that can be partially compensated for by lowering the fuel level. Inspect and replace tubes when required.

These are direct replacement jets, but include the Factory Pro "HDJ" High Dispersement Jet system to better atomize fuel and improve throttle response.

A direct replacement for worn, original items. Accepts standard Mikuni main jets and dynojet jets, our Factory Pro Carb Recal Kits.

CRB-Y11-1.0     $139.95

1. Choose your shipping method
2.

Standard drop-in carb kit  

Adds more low-end / midrange, if the proper main jet is selected, more topend power. Easy to install and tune - no slide drilling!

This is the preferred carb kit of most users on
V-Max.com and RM Sportmax some of the premier sources of V-Max information - and - some of the best mc user groups on the internet.

Upgrade note:

If you are upgrading your carbs from a dynojet or other kit that drilled the slides 4.57mm or .180", the original slide holes were:

3.42mm / .138" (thank you, Michael Tjon) or
"about .010" larger than 1/8th inch" or
"just a skosh more than an eighth" or
"a 1/8th inch is better for throttle control than drilled out slide damping holes...."

One repair method:
Fill hole carefully with 5 minute or longer epoxy and redrill with a NEW / SHARP drill bit - Be very light on the pressure or you will pop out the epoxy and have to start over again. Patience!!! :-)

Note:

Float Height
"as delivered" (with only one sample) dry float height: 28.5mm (with float valve closed, but not compressing the float valve spring)
I'm sure that was what the one sample bike was - and our Y11 jet kit was developed with 28.5mm. That doesn't mean that 28.5mm is the perfect setting for every VMax, but it's close.

1940's flashlight and VMax carb picture compliments of
Tyler Pennock #380
VMOA Eastern Canada Director
Ottawa,Ontario,Canada
1987 Vmax 1260

 


CRB-Y11-1.1-TI  
$159.95
1. Choose your shipping method
2.
 

Ti ProKit carb kit
 

Titanium needles and Stainless steel allen screws for the float bowls. Adds more low-end / midrange, if the proper main jet is selected, more top-end power. Easy to install and tune - no slide drilling!


CRB-Y11-3.0  + our High Dispersement Emulsion Tubes
 $259.95
for pod filters
(filters not included)
1. Choose your shipping method
2.
 

Stage 3 (idles and cruises  nicely)
 

CRB-Y11-3.0
Config 30 carb kit

Believe it or not!   Haven't made it.
We would if there was someone local who wanted it, though!
I think that "Stage 7" scared a lot of people?

Carburetor Tools


TL-float height gauge    $59.95
1. Choose your shipping method
2.
 

 

The only way to accurately measure float heights. Works on nearly every carburetor.

 

 

Links

 

Absolutely NO carb parts sold in California.

New and improved Suzuki Teka SFI  2

with new TPS display and "MMT" Memory Module Tuner

Finally - Quick, easy, cost effective Suzuki tuning with no expensive "add-on boxes"
Suzuki cruisers and sportbikes

Please click here for more info

Contact Factory Pro
M-F, 9am - 5pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 491-5920

parts information
 info@factorypro.com

EC997 dynamometer information
info@factorypro.com

Product Support /Tech SECTION
click here

 

Mailing / Shipping address:

Factory Pro
179 Paul Drive
San Rafael, CA 94903
USA

And most importantly
Restart back at the HOME page and click on the red box in the top left to find the bike that you want parts for...
restart at HOME page

 

This Tuning Site has been visited by
  
people.
www.digits.net - the oldest counting service on the web

          

 

 

 

LINKS
EFI and Carb Tuning - Most all FI and carb tuning

by Wheelsmith Racing

Flight Training - train with AMA race winner Todd Harrington.

The Harringtons own American Flyers, one of the most established flight training facilities in the USA.

 8 locations

 800-362-0808
The Rich Oliver Mystery School will help you discover your hidden inner strength. 
It will challenge you. It will teach you a new way of thinking, and a new way of riding. You can take your riding to an exciting new level!  

We use a variety of proven drills and training techniques. 
Practicing these techniques with our Yamaha dirt track trainers will enhance your abilities both on the track or the street.  

It doesn't matter what you ride or race, the Rich Oliver Mystery School improves everyone's skill level and mindset!

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Book a sightseeing flight over the Wine Country or a Kamikaze aerobatic flight or a biplane flight over famous Sonoma Raceway, the Golden Gate Bridge and the San Francisco Bay for one or two during the spring and get a free souvenir t shirt!
(NEW!  Ask about the P-40 flights!)

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Just tell them that you saw this on the Factory Pro website!
Marc
Northern California's most unforgettable flying experience.  No experience required.  Open weekends!

The extension of the laboratory for engines of the Swiss Federal Institute of Technology was completed in about 1935. Its architect was Rudolf Otto Salvisberg (1882-1940). He had a successful career in Berlin but returned to Switzerland after the advent of the Nazis. His architectural style was somewhat similar to that of Erich Mendelsohn. The staircase of the laboratory is in normal use but well preserved.
Edited to the tunes of Chemical Residue by Herbie Hancock.