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Pro X N424-21 Series Keihin Pilot Jet

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Pro X N424-21 Series Keihin Pilot Jet
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Pro X N424-21 Series Keihin Pilot Jet

Our Price: $3.21

MSRP: $3.73 - You save up to $0.52 (14% off)

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Details

  • N424-21 Series.
  • High quality aftermarket jets for Keihin carburetors.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Pro X N424-21 Series Keihin Pilot Jet Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
4.9 / 5.0
170 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
151
17
1
0
1
Value
4.9 / 5
Performance
4.9 / 5
Recommend it?
Yes (72)
No (1)
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
Pro x quality
Great product and very affordable. I highly recommend
September 5, 2019
Cedar springs, MI, US
Age: 25-44
Purchased
11 months ago
Gender:
Male
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
Love em great to keep around for extras as well
These are amazing to keep around for spares, rebuilt the carb on a 09 yz450f and because of the different altitude changes I ride in I ordered a few different pilot jets machine runs amazing now

-m-2009 YAMAHA YZ450F--
August 26, 2019
Indian Springs, NV, US
Age: 25-44
Purchased
1 month ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
GOOD JET: BUT DOES NOT WORK WITH QA PARTS CARB
Good quality jet, I don’t see any reason it wouldn’t work in an OEM carb. But take note and beware that you can NOT use this jet in the QA parts carb RM sells. Use this in your OEM carburetor only. They really should specify in either part description.
August 10, 2019
Albertville, AL, US
Age: 15-24
Purchased
1 month ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
works
works as it should, i bought this for my 450 bc most ppl changed from 42 to 45

-m-2008 HONDA CRF450R--
August 1, 2019
Bowie, MD, US
Age: 25-44
Purchased
2 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
6'4 - 6'6
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
Cheap and works good! If you need to rejet your bike this is the way to go.
-m-2009 HONDA CRF250X--
July 8, 2019
Galloway, OH, US
Purchased
3 months ago
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
Beautiful
Great product!! Worked perfectly for my application!

-m-2007 HONDA CRF250R--
May 20, 2019
Sulphur , LA, US
Age: 15-24
Purchased
4 months ago
Gender:
Male
Weight:
>281 lbs.
Height:
6'4 - 6'6
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
Jetting upgrade for CRF100F
Rebuilt my sons' CRF100F with a 120cc big bore kit and modified the exhaust and air box for more flow. Raised the needle one notch but bike still bogged at 3/4 throttle. Installed this next size larger jet and the bog went away. Engine pulls hard right to red line now. Works great!

-m-2004 HONDA CRF100F--
April 30, 2019
Taylor, BC, CA
Purchased
5 months ago
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great
I ordered the 48 size pilot jet and it made my quad idle drastically better. Overall very impressed with the product and the customer service at Rocky Mountain helping me fine tune my quad.

-m-2006 HONDA TRX 450ER--
April 18, 2019
Arkansas City , KS, US
Age: 15-24
Purchased
5 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
great value
Great value when you need additional jet sizes!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
February 25, 2019
Godley, TX, US
Age: 25-44
Purchased
over 5 years ago
Gender:
Male
Value
5 / 5
Performance
5 / 5
Recommend it?
Yes
A great jetting product
I’ve purchased a few in various sizes for the different elevations, weather, etc., & so far they work great. No complaints.

-m-2003 KAWASAKI KX500--
February 15, 2019
Henderson , NV, US
Age: 45-64
Purchased
7 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 1 answer
is this a genuine Keihin jet?
A shopper on Nov 23, 2017
BEST ANSWER: No, these are the Pro-X version. However, we do have the genuine Keihin Jets as well.
Keihin N424-74C Series Pilot Jet
Keihin N424-74C Series Pilot Jet
Keihin N424-25B Series Pilot Jet
Keihin N424-25B Series Pilot Jet
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