natural gas conversion kit

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The #1 Factory Direct Supplier of Kits on the Web.

Best kits, best instructions, and best support. "Carburetion is all we do!"

Home Up 1.0 AJ 1.OKJ 4EGH 5EGH 6EGH

We have Professionally Equipped Yamaha Generators Ready to run on Propane, Natural Gas and Gasoline. Click here to learn more . . .      Want help figuring out which kit to order?  First try our "What Kit Do I Need?" page and

also the new "Simple Explanation" page!





Some Kit Order Links on individual pages are no longer functioning.  We apologize for the inconvenience during this website update.  If the ones on your page are not functioning, please verify what kit is available for your unit and then

click this link "KIT LIST PAGE FOR ALL GENERATORS AND ENGINES" to go to this temporary kit listing page.


Search for any Generator or Engine number. See results below:


Help Links


ALL ENGINES 12hp or smaller use

A & C Kits


ALL ENGINES 13hp or Larger use

Type 1 Kits

Dedicated High Pressure Propane


Type 2 Kits

Bi-Fuel Propane and Gasoline


Type 3 Kits
Dedicated Natural Gas and Low Pressure Propane

Type 4 Kits
Tri-Fuel Natural Gas, Propane, and Gasoline


Remote Start
The parts needed to start a generator remotely by wire or even wireless


What Kit do I need?

Don't know what kit is best for your application?

Click this link for a Simple Chart that should help you decide what is your best kit choice.

Check Out


View Cart


Shop with confidence!


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Monday August 09, 2010

News & Features

Kit Production Update:


 is currently at:

1-3 days

As always, some kits take a little longer due to heavy order volume. 

Kit Center Regular Hours of Operation:

Monday thru Friday

9:00 am - 4:30 pm

Eastern Time.


If you require assistance please fill out a request form using this link

Tech Help

 or the email address found in your Master Conversion Instruction Booklet.




Use your credit card and safely and securely  order on-line.  Or call our office toll free at :


 Monday thru Friday 9-4:30 Eastern time.  You can place your order over the phone if you feel more comfortable doing that or if you would like to speak with a company  representative to answer any further questions you may have. 

Please check our BASIC INFO page first.




For our Canada customers call us here in the U.S. toll free at




We have kits for the following models of engines listed below. If you're not sure what each type means, click on the Quick Help Links to the left.

Ordering information is below chart.




Type 1


Type 2


Type 3


Type 4


1.OKJ Yes Yes Yes Yes
4EGH Yes Yes Yes Yes
5EGH Yes Yes Yes Yes
6EGH Yes Yes Yes Yes
AJ N Yes N Yes
B43E N Yes N Yes
B43G N Yes N Yes
B43M N Yes N Yes
B48G N Yes N Yes
B48M N Yes N Yes
BF N Yes N Yes


N Yes N Yes


not as above

N Yes N Yes
BG N Yes N Yes
CCK N Yes N Yes


N Yes N Yes


not as above

N Yes N Yes
CW N Yes N Yes
E124V N N N N
E125H N N N N
E125V N N N N
E140H N Yes N Yes
JB* N Yes N Yes
JC* N Yes N Yes
N52M N Yes N Yes
NB N Yes N Yes


N Yes N Yes


not as above

N Yes N Yes
NHA N Yes N Yes
NHM N Yes N Yes
P-216 N Yes N Yes
P-218 N Yes N Yes
P-220 N Yes N Yes
P-224 N Yes N Yes
PC N Yes N Yes
T260G N Yes N Yes







































Ordering is easy. 

If  Yes follows the Engine Number above a kit is available for your engine.

If  N follows the Engine Number above a kit is not available for your engine.

Simply choose the type of kit you require based on your engine model number.  The YES link next to the engine number will take you to the shopping cart.  When you are checking out, type in all the information you have about your engine and generator in the information box of the order form.  

Accessories can be ordered by choosing to continue shopping before checking out. You will be taken to the  ACCESSORIES page.


*JB & JC Engines

Our book lists the 7.5 JB unit as:
2 cylinder-60 CID
15hp @ 1800 rpm
Our book lists the 7.5 JC unit as:
4 cylinder-120 CID
30.5hp @ 1800 rpm
Both are listed as having a Zenith carburetor, side draft, 1" SAE flange, and that the air cleaner connection is flat with 3 or 4 10-32 machine screws on 1-3/8 bolt circle.
However, it states that an adapter is not suitable for these engines because of the engine cover interference.
However, if you think the 1-1/4" of additional space is not an issue, and the if the above information is correct,  a type 2 or Type 4 kit is available.

Use this link to CONTACT US by filling out a request form or contact us

in the U.S. at 1-800-553-5608

or toll free from Canada to our US office 1-800-486-0077.

US Carburetion Kit Center

416 Main Street * Summersville * West Virginia * 26651

Copyright 1995-2010  US Carburetion, Inc.  All rights reserved.