Shopping For:
  1. Manage Saved Rides
  2. Change Your Selected Ride

Keihin 21 Series Pilot Jets - 4-Pack

Keihin 21 Series Pilot Jets - 4-Pack - Main
See More Views and Product Zoom
More Media
Keihin 21 Series Pilot Jets - 4-Pack - Main
+-
$20.99
Free 3-day express shipping Shipping Info On orders over $99.

Please choose an available item.

 
It appears you may have cookies turned off in your web browser, or are using a browser that does not support cookies. You must accept cookies to use our site. For questions call us at 1-888-676-8853.
Report an error
Chat with an expert | Email a question | Email this item to a friend

Product Description

  • Keihin 21 series pilot jets are used in PJ, PWK, PD, and 20 - 32 mm PE carburetors.
  • Sold in a 4-pack.

You may also like

Keihin 22 Series Pilot Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin 22 Series Pilot Jets - 4-Pack
$20.99
Keihin Hex Main Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin Hex Main Jets - 4-Pack
$20.99
Keihin Round Main Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin Round Main Jets - 4-Pack
$16.99
  • Customer Reviews
  • Ask an Expert
(2)
4.5 out of 5 stars
5 star   1
4 star   1
3 star 0
2 star 0
1 star 0
Write a Review
1-1 of 2
Overall
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Great product
product was exactly as pictured in the picture just did not fit my application. i guess i needed to do more research on it before i just ordered
1-1 of 2
Total Questions (5)
Questions with answers:
  5
Questions without answers:
0
Have a question?
“ What's the best size slow jet for a crf450r with a white brother aluminum pro exhaust?... ”
Crf450r
“ What all jets do I need to rejet my whole carburetor?... ”
Hondaman
“ What size jets do I need for a 2008 crf70f?... ”
Auto1031
1-5 of 5
Crf450r 20 days ago
What's the best size slow jet for a crf450r with a white brother aluminum pro exhaust?
My bike is running to lean and I need a smaller pilot jet than is in it and I don't exactly know what to get or how to find out
MotoSport Staff
12 days ago Location: Portland, OR, USA
Unfortunately you didn't let us know the year model that you are dealing with. To give you some insight, jetting is not an exact science and many variables play a factor, especially with four stroke models. The best thing that you can do so you are prepared for most conditions and elevations would be to purchase a jet kit. These kits come with various sizes and instructions to help you fine tune your bike. If you aren't interested in purchasing a kit, grabbing a few sizes up from stock will be the next best thing. Since there are no "set" sizes to run, you will always be fine tuning and changing sizes depending on climate, elevation and performance modifications.
Answer this Question
Hondaman 25 days ago
What all jets do I need to rejet my whole carburetor?
I just put a snorkel on it and I need to rejet it. Idk where to begin or what I need. I have a 2004 Honda Rancher 350ES 4x4
MotoSport Staff
24 days ago Location: Portland, OR, USA
I unfortunately cannot answer this based on the information provided. First you will need to determine whether the unit is running rich, or running lean. From there it would need to be determined how far off it is from being correct. That would designate whether you jet up or down and how many sizes you would change to get it in the ballpark for fine tuning.
Answer this Question
Auto1031 1 month 3 days ago
What size jets do I need for a 2008 crf70f?
I wanna replace all jets
MotoSport Staff
27 days ago Location: Portland, OR, USA
These jets will not fit your 2008 CRF70. You will need to purchase the OEM jets from Honda for this particular model. The pilot jet is part # 99103-GB0-0380. The main jet will be part # 99102-GHB-0620.
Answer this Question
ROOST 1 month 5 days ago Location: Shreveport, LA, USA
What would be the right size for a little bigger size jet than the stock jets for my honda 2007 cr85?
MotoSport Staff
1 month 1 day ago Location: Portland, OR, USA
For your 2007 CR85 i would start with what FMF recommends for the jetting and tune from there. Main Jet 125 Pilot Jet 52 Needle STOCK Needle Position 3RD
Answer this Question
anthony 2 months 5 days ago Location: Skipwith, 2, VA 23968, USA
Will the jet kit size 80 fit my kx80?
MotoSport Staff
2 months 5 days ago Location: Portland, OR, USA
Yes, your 2000 Kawasaki KX80 was supplied with the PWK Keihin carb which uses a 21 series pilot jet. The range is typically from 50-60 depending on your needs, conditions and location.
Answer this Question
1-5 of 5

Featured Keihin

Keihin Hex Main Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin Hex Main Jets - 4-Pack
$20.99
Keihin 22 Series Pilot Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin 22 Series Pilot Jets - 4-Pack
$20.99
Keihin Round Main Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin Round Main Jets - 4-Pack
$16.99
Keihin 21 Series Pilot Jets - 4-Pack - Keihin 21 Series Pilot Jets - 4-Pack
Keihin 21 Series Pilot Jets - 4-Pack
$20.99
* required entry

Forgot your password?