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  1. #1
    New Member
    Join Date
    Apr 2009

    Default John Deere 730 LP conversion to Gasoline

    A friend of mine has several old LP 730 tractors and is wanting to convert one to gasoline. I was just wondering what all is required. I am not a professional by any means and was hoping to recieve a little help from this forum. My thinking is that a fuel tank, carburetor, settlement bowl, and throttle adjustment would handle most of the project any help would be greatly appreciated.

  2. #2
    Veteran Member RPW's Avatar
    Join Date
    Aug 2009

    Default Re: John Deere 730 LP conversion to Gasoline

    Possible intake manifold. Propane doesn't require a vertical carberator mount.

  3. #3
    Platinum Member
    Join Date
    Apr 2002
    SE Minnesota
    John Deere 4720 Cab

    Default Re: John Deere 730 LP conversion to Gasoline

    I can't say for certain about the two cylinder tractors but I came close to purchasing a 4020 tractor that had been converted from LP to gasoline. The compression ratio is higher on the LP tractor as they use different pistons. My dealer had a concern about using regular fuel and thought I would need to use premium to avoid detonation. I never bought the tractor.

    It may not be an issue with the 730 and even if it is you probably aren't putting a lot of hours on the tractor where a few extra cents for premium fuel would be a problem. The 4020 gasoline tractors were quite thirsty so I was reluctant to spend the extra for premium fuel.

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