What is the correct part number/ best place to buy a #40 pilot jet? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 12 (permalink) Old 09-20-2011, 11:45 PM Thread Starter
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What is the correct part number/ best place to buy a #40 pilot jet?

I believe I need to step up my pilots from the stock 38. I am thinking I need a set of 40's but I am having some trouble finding them. Most sites I look at only list a 35 and a 38. So does anyone have the correct part number for a 40 and also what the best price for 2 of these are?
Thanks in advance
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post #2 of 12 (permalink) Old 09-21-2011, 10:46 AM
Crap, I WAS in 5th gear.
 
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Keihin 424-22 specify size #40.

http://www.pjmotorsports.com/keihin-...tml#pilot/slow jets
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post #3 of 12 (permalink) Old 09-21-2011, 02:10 PM Thread Starter
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Is this site probably the best/cheapest for these jets? Also does a #40 sound about right for me? I have a set of Jardine slash cut pipes and still have the stock ears but they have been drilled for better flow.
Thanks
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post #4 of 12 (permalink) Old 09-21-2011, 03:10 PM
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Quote:
Originally Posted by Cricketo99 View Post
Is this site probably the best/cheapest for these jets? Also does a #40 sound about right for me? I have a set of Jardine slash cut pipes and still have the stock ears but they have been drilled for better flow.
Thanks
what has been drilled?
where are you?
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post #5 of 12 (permalink) Old 09-21-2011, 11:29 PM Thread Starter
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When I bought it the previous owner had drilled small holes in the outside of the ears in between the raised areas. I am in Roanoke, VA.
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post #6 of 12 (permalink) Old 09-22-2011, 11:14 AM
Crap, I WAS in 5th gear.
 
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Is this site probably the best/cheapest for these jets? Also does a #40 sound about right for me? I have a set of Jardine slash cut pipes and still have the stock ears but they have been drilled for better flow.
Thanks
Don't know how their prices compare- I figured $7 a piece was reasonable, I could order online and they shipped within an hour.

Whether or not you upsize your jets depends on how the bike is running. If there is no hesitation at low-mid throttle, then you don't need to change the jets. I am putting 40s in mine and it's all stock because it surges. Changing exhaust doesn't require a jet change because there is virtually no effect on the fuel/air charge going through the intake- it is a much different story for 2-strokes.
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post #7 of 12 (permalink) Old 09-22-2011, 11:33 PM Thread Starter
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Well the reason I am thinking bigger pilots is because I have a hesitation at a little less than quarter throttle. I have tried adjusting the mixture screws but they have little effect. So I suppose I will go up to a 40 and give it a shot.
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post #8 of 12 (permalink) Old 09-23-2011, 12:58 AM
If only it had 6th gear..
 
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I bought mine from the info in this quote from VoipDoc. Very helpful;
Quote:
Originally Posted by VoIP Doc View Post
Don't do the work twice!!

Here's what you need:
Parts: (see Figure 2)
1 Mikuni Needle Shims Item# 009-396 $6.95
2 Keihin PN: 99101-393 Main Jet Size: 142 $13.90
2 Keihin PN: N424-22 Pilot/Slow Jet Size: 42 $13.90
Total $34.75
Order from here You'll have them this weekend. If you prefer 140/40..order them.
Just scroll down 'til you find your part number....pick size. Done.
Call the guy...real easy to talk to. Knows his carbs

Dave

Mods:
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post #9 of 12 (permalink) Old 09-23-2011, 11:19 AM Thread Starter
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Okay thanks, now do yall think a 40 will be big enough or should I go ahead and spring for the 42. I do plan to do the ear shave at some point just not sure when.
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post #10 of 12 (permalink) Old 09-23-2011, 11:30 AM
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I am at 1961' above sea level. I used 40 pilots and 140 mains, and 2 shims on each needle. Also I used k & n air filters. Filter #rc-2340. All this advise from Lance (Ron).
Also all this with after market pipes and ear shave. Ran great.

02 honda sabre 1100
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