SECOND DEVIATION FROM PURCHASE AGREEMENT

      This Agreement ("Second Deviation Agreement") is entered into and
effective as of the date of January 31, 2001, and is between John Deere
Technologies International, Inc., ("Seller"), a Delaware Corporation having its
principal office in Moline, Illinois, and Rotary Power International, Inc.,
formerly known as Rotary Power Technologies International, Inc, ("Buyer"), a
Delaware Corporation. All capitalized terms used herein without definition shall
have the respective meaning assigned to them in the Agreement (as defined
below).

      WHEREAS, Seller and Buyer entered into a Purchase Agreement on November
15, 1991, as amended by the Addendum Agreement dated December 31, 1991, the
Second Addendum Agreement dated April 26,1993, and the Deviation Agreement dated
February 19, 1996 (as so amended the "Agreement"), which provided for the sale
by Seller and the purchase by Buyer of the assets of the rotary engine business
of Seller ("Business") on December 31,1991, (the "Acquisition");

      WHEREAS, Article IV and Article V of the Agreement require that Buyer pay
to Seller certain Earned Deferred Payments and certain Fixed Deferred Payments;

      WHEREAS, Buyer has been unable to make the Fixed Deferred Payments of Two
Hundred Twenty Five Thousand Dollars ($225,000) due by January 30, 1997 and Five
Hundred Thousand Dollars ($500,000) due each January 30th thereafter, which
payments are due until and including January 30, 2006;

      WHEREAS, Buyer has requested that Seller waive the Fixed Deferred
Payments; and

      WHEREAS, Seller is willing to waive the Fixed Deferred Payments on payment
of $350,000 in cash and modification of the Earned Deferred Payments;

      NOW, THEREFORE, in consideration of the premise, warrants, promises,
agreements and conditions herein contained, it is further agreed as follows:

      1. Seller agrees to waive all Fixed Deferred Payments required by Article
IV, Paragraph 6, on payment by Buyer to Seller of $350,000 in cash according to
the following schedule: $100,000 immediately upon the effective date of this
Second Deviation Agreement; $100,000 on the fifth month anniversary of the
effective date of this Second Deviation Agreement; and $150,000 on the tenth
month anniversary of the effective date of this Second Deviation Agreement.
Seller shall retain the security interest in the Secured Equipment granted by
Buyer to Seller under the Deviation Agreement dated February 19,1996. Upon
receipt of $350,000 Seller will execute any appropriate instruments and
documents reasonably requested by Buyer to terminate the security interest in
the Secured Equipment.

      2. Upon the filing of any voluntary bankruptcy petition, decree or order
with respect to the Buyer; the appointment of any receiver, liquidator,
assignee, custodian or similar official for any substantial part of the Buyer's
property; any general assignment

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for the benefit of creditors of Buyer; or a declaration of default in any
secured long-term debt owed by the Buyer, all amounts owing hereunder and under
the Agreement shall be immediately due and payable without notice or
presentment.

      3. Article IV, Paragraphs 1 & 2 shall be replaced in their entirety by the
following:

            1.a. An Earned Deferred Payment as set forth below for each "Earned
            Deferred Payment-bearing rotary engine" (as defined below) sold or
            invoiced by Buyer or a licensee of Buyer during the time period
            specified:

            a)    Three (3%) percent of the sales price of each Earned Deferred
                  Payment-bearing rotary engine, or part therefore, during the
                  first five (5) years following the effective date of this
                  Second Deviation Agreement;

            b)    Two and One Half (2.5%) percent of the sales price of each
                  Earned Deferred Payment-bearing rotary engine, or part
                  therefore, during years Six through Ten (6-10) following the
                  effective date of this Second Deviation Agreement;

            b)    Two (2%) percent of the sales price of each Earned Deferred
                  Payment-bearing rotary engine, or part therefore, during years
                  Eleven through Fifteen (11-15) following the effective date of
                  this Second Deviation Agreement.

            1.b. Should Buyer be required to pay a royalty to any third party
            (unrelated to Buyer) based on the sale by Buyer of any "Earned
            Deferred Payment-bearing rotary engine" which is not related to the
            any one of the 70,170 or 580 series families of engines, Buyer
            shall, subject to the conditions set forth in the immediately
            following paragraph 1.c., be entitled to a reduction in the Earned
            Deferred Payment for each such engine by an amount equal to the
            royalty paid to such third party, but in no event by an amount
            greater than the Earned Deferred Payment due to Seller for such
            engine.

            1.c. To be entitled to the credit specified in paragraph 1 .b.
            immediately above, Buyer shall submit to Seller, along with each
            Earned Deterred Payment, an explanatory statement setting forth

                  i.    the number of engines for which a credit is claimed;

                  ii    the credit claimed for each engine and the aggregate
                        credit claimed;

                  iii.  a brief description of each type of engine for which
                        credit is claimed;

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                  iv.   an explanation of why each type of engine for which
                        credit is claimed is not related to any one of the
                        70,170 and 580 series families of engines.

            In addition to the explanatory statement, Buyer shall also provide a
            reconciliation statement from its auditors evidencing the actual
            payments to a third party.

            2. "Earned Deferred Payment-bearing rotary engine" shall mean any
            and all rotary engines without regard to patents and whether or not
            it is based on technology that is the subject of the Agreement.

      4. Buyer warrants that it has not previously recovered the remaining One
Hundred Thousand Dollars ($100,000) deferred fee withheld on USMC Contract
Number N00024-89-C-3831 and hereby confirms its obligations to take those steps
necessary to promptly recover and pay the same to Seller immediately upon its
receipt in whole or part.

      5. Should Buyer fail to make any of the payments specified in paragraph 1
of this Second Deviation Agreement or any Earned Deferred Payment as required by
Article IV, Paragraph 1 as required and when required, this Second Deviation
Agreement shall be considered null and void and the Agreement, as it existed
prior to this Second Deviation Agreement, shall be considered in full force and
effect. In the event this Second Deviation Agreement is considered null and
void, any payments made hereunder shall be considered as partial payments of the
fixed deferred payments.

      6. This Second Deviation Agreement does not cancel, supersede, replace or
modify any of the terms of the Agreement except as specifically set forth
herein.

      7. To the extent not modified by this Second Deviation Agreement all
terms, conditions, and definitions set forth in the Agreement shall apply to
this Second Deviation Agreement and, specifically, all payments and deliveries
shall be considered made in accordance with Article XIX of the Agreement.

      IN WITNESS WHEREOF, the parties hereto have caused this Second Deviation
Agreement to be executed in duplicate originals as of the last date below.

                              JOHN DEERE TECHNOLOGIES INTERNATIONAL, INC.


                              by: /s/ R. Holbiter
                                  --------------------------------------
                                          Vice President

                              date:  9 January 2001
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                              ROTARY POWER INTERNATIONAL, INC.


                              by:  /s/ Conway Davis
                                   ------------------------------------------

                              title:  President & CEO
                                      ---------------------------------------

                              date:  9 January, 2001
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