Air corrector jets for Mikuni VM 24, 26 and 28mm round slide Mikunis.

Nessism wrote:

Do you sell air correction jets for Keihin CV34 carbs?  I saw mention of this in a thread here...

Sorry not for the Keihin CV's but for the Mikuni CV's as found on Kaw Z650,750,1000,1100. Suz GS1000, GSX1100 . Yam XS1100 etc.

Greetings from Winnipeg, Canada. I am currently having hesitation issues with my ride and I am very interesting in purchasing these air corrector jets from you. I have had the carb pack off and on more than a dozen times trying to find the correct combination of pilot and main jet to get the hesitation ( Bog ) problem resolved with no luck. What you say in your topic regarding the extra amount of air entering the engine after installing air pods is 100% true. When accelerating past 1/4 throttle, I can hear the engine sucking in air profoundly. The hesitation seems to happen around 3000RPM in all gears. If your jets can solve this issue for me that would be great. My ride is a 1976 KZ900 Z1. I have had the top end rebuilt with .010 over on the pistons, air pods installed and 4 into 2 Jardine header pipes. I am currently running a # 120 main jet ( 2 sizes over from the factory #115 main jet ) and a 17.5 pilot jet ( 1 over from the factory size of 15 ). My carbs are Mikuni VM26SC and have been rebuilt with all new parts and the needle size is 5DL31 factory sized needle. Clip setting on the needle is in the middle position. Can you please advise on what my cost would be to have a set of 4 of these jets sent to Winnipeg, Manitoba, Canada. Postal code is R2G 2P7. Thanks so much and hope to hear from you soon regarding what your thoughts are on my hesitation issue and if your product can resolve this issue. 
 

KennyJ wrote:

Greetings from Winnipeg, Canada. I am currently having hesitation issues with my ride and I am very interesting in purchasing these air corrector jets from you. I have had the carb pack off and on more than a dozen times trying to find the correct combination of pilot and main jet to get the hesitation ( Bog ) problem resolved with no luck. What you say in your topic regarding the extra amount of air entering the engine after installing air pods is 100% true. When accelerating past 1/4 throttle, I can hear the engine sucking in air profoundly. The hesitation seems to happen around 3000RPM in all gears. If your jets can solve this issue for me that would be great. My ride is a 1976 KZ900 Z1. I have had the top end rebuilt with .010 over on the pistons, air pods installed and 4 into 2 Jardine header pipes. I am currently running a # 120 main jet ( 2 sizes over from the factory #115 main jet ) and a 17.5 pilot jet ( 1 over from the factory size of 15 ). My carbs are Mikuni VM26SC and have been rebuilt with all new parts and the needle size is 5DL31 factory sized needle. Clip setting on the needle is in the middle position. Can you please advise on what my cost would be to have a set of 4 of these jets sent to Winnipeg, Manitoba, Canada. Postal code is R2G 2P7. Thanks so much and hope to hear from you soon regarding what your thoughts are on my hesitation issue and if your product can resolve this issue. 

 

Hi, Kenny.
Your carbs should be VM26SS with 3 bolt tops ..( The VM26SC are Z2 750 fitment only with 2 bolt tops )
The hesitation is caused by a lean spot on the transition between the pilot jet and needle jet so it's not a pilot jet or main jet issue and only the main air jet conversion correctly rectifies the issue regardless of engine tune or exhaust fitted and without adversely affecting the fueling in other areas of the fueling curve.
With the air correctors installed you need to put ALL carb and jet settings back to stock and just increase the main jet one size up from stock.
I hope your carb rebuilt used all original MIKUNI if any brass was replaced and the pods are quality K&N etc.
Unless physically damage the original brass should be retained..
Price for jets delivered worldwide is £41.
Email me at -  zed.1015@yahoo.co.uk  - to proceed..

Hi There Zed.....Thanks for the quick response on this....Greatly Appreciated.  Yes, my carbs have the three bolt top caps so I guess there are VM26SS. I went to your Ebay page and ordered a set of your jets. Hoping to get them in a couple of weeks. I am praying that this will resolve my issues with this bad hesitation. So just to be clear on what I have to do is: Put the factory pilot jet ( #17.5 ) back in the carb pack, set the needle clip to mid position and go to a #117.5 main jet and not a #120. Please advise on this at your convenience. Thanks again

KennyJ wrote:

Hi There Zed.....Thanks for the quick response on this....Greatly Appreciated.  Yes, my carbs have the three bolt top caps so I guess there are VM26SS. I went to your Ebay page and ordered a set of your jets. Hoping to get them in a couple of weeks. I am praying that this will resolve my issues with this bad hesitation. So just to be clear on what I have to do is: Put the factory pilot jet ( #17.5 ) back in the carb pack, set the needle clip to mid position and go to a #117.5 main jet and not a #120. Please advise on this at your convenience. Thanks again

YES! Everything back to stock and main jet one size up from stock.
Also some vm26 carb banks with fuel screw underneath are made up of all left handed bodies.
If this is the case then the all the jets need to be installed in the 4 o'clock position.
Any doubts just post a pic of the carb mouths for verification.
 

Thanks a ton Zed for the info on this. Still enjoying my ride for now ( even with the hesitation issue ) but taking it easy on the throttle until I get the parts installed. Will keep you and everyone following this thread on how I make out once the parts are installed. Cheers...........  

The air jets make a big difference. On my 33's they are changeable but I had to make one more step to fine tune them in. I had to go larger and add one more hole in the emulsion tube to get it gnats ass. 
With the stock carbs I don't think you'll have to go that far. 
Steve

ZED, looking for your Air corrector jets for Mikuni VM 24. Let me know what info you need.


Thanks
Ken
 

Yo-Ken wrote:

ZED, looking for your Air corrector jets for Mikuni VM 24. Let me know what info you need.


Thanks
Ken

 

Have replied via email.
Thanks.

zed1015 wrote:

Yo-Ken wrote:

ZED, looking for your Air corrector jets for Mikuni VM 24. Let me know what info you need.


Thanks
Ken


 

Have replied via email.
Thanks.
 

I received the Air Corrector Jets a few days ago, installed today. OMG what a difference. No more hesitation, no pops, no misses, no fluttering... just a smooth throttle all the way to red line. Acceleration has improved dramatically, I didn't know the KZ650 could run so good with pods. Well worth the money... THANKS!

Yo-Ken wrote:

I received the Air Corrector Jets a few days ago, installed today. OMG what a difference. No more hesitation, no pops, no misses, no fluttering... just a smooth throttle all the way to red line. Acceleration has improved dramatically, I didn't know the KZ650 could run so good with pods. Well worth the money... THANKS!

Thanks, Ken.
They can't fail to do what they are designed for and you should get better MPG and top end power too.

Hello Zed1015,
I want to buy a set of air correction jets for my Z1R 28mm carbs.
Can I buy them on Ebay if not please supply info on how to order them.
Thanks,
BostonBob