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Rochester Main Jet

Rochester Main Jet

Your Price:$5.25
In Stock
Part Number:120-10

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Rochester B, 2 Jet
Rochester B, BC, BV, H 1 barrel carburetor main jet. Also fits 2G, 2GC, 2GV, 2 barrel carburetors. Jet sizes are usually stamped on the top of the jet, or use a drill bit to determine your existing size.

Includes 1 jet.

Rochester B, BC, BV Jet Size Specifications
Rochester 2G, 2GC, 2GV Jet Size Specifications

Jet Testing

To determine if you have the correct jets in your carburetor, operate your vehicle for 20 minutes at sustained speeds.  Stop and pull a plug. Gray - Good, Black - move down one jet size, White - move up one jet size. Do it all over again until you get a gray plug.

This assumes your engine and electrical system is in good running order.

5 Stars
Mr.
I bought a pair of size 50 jets to match my Rochester carb. and they work great. I also bought a pair of 58s which I did not use ,so I will keep them for the next project. Thanks Mike
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Black Creek, B.C.. on 11/1/2015
5/5
5 Stars
Jet
The 50 size jet on my Rochester 1b dual carb. set up leaned out the mixture and made my '55 chevy 261 run perfectly. Installed one each on the carbs an drove around, light brown plugs in 30 min. I am 3600ft ASL so this worked for me.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from NV. on 11/25/2015
5/5
5 Stars
Old car owner
Very quick reliable service and product is what was expected.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Beaver,OK. on 10/30/2015
5/5
5 Stars
MR.
Parts were of top quality and exactly what I ordered. Mikes website is very informative and easy to navigate.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Stony Plain. on 10/29/2015
5/5
5 Stars
OWNER, ELITE COMPLETE SERVICES
VERY NICE PRODUCT AND SPECTACULAR SUPPORT, RECOMMEND YOU TO ALL MY FRIENDS FOR CARB PARTS
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Trenton. on 4/5/2015
5/5
5 Stars
Jets
Thank you,well packaged and quick dispatch.My Land rover is running better.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from BC. on 6/29/2014
5/5
5 Stars
New customer
Product was in stock and was shipped promptly. The jets are the correct size and quality is good. Very satisfied
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Michigan. on 6/2/2014
5/5
5 Stars
purchaser
Quality, service and shipping all very nice. Thanks.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Rome, Italy. on 3/19/2014
5/5
5 Stars
business owner
Very satisfied
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Val d'Or. on 9/16/2013
5/5
5 Stars
parts
Found kit good quality and instructions clear. Am happy with my purchase thanks
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from unknown. on 3/27/2013
5/5

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