Heavy Equipment Forums Heavy Equipment Community

Carburetor jet for D7 17a needed

LG 78 · 2021-07-16 22:31

Hi everyone Ive had my old 17a out working and for some reason the bottom fuel jet on the carburetor on the starting engine has come loose and fallen out during operation. Either that or some bugger is trying to have a laugh and has removed it Would any of you good folks happen to have one of these kicking about that they coild send off to little old New Zealand? Quite happy to pay as shes in a gully and I cant start her without it Any help as all ways would be greatly appreciated

Replies15
  1. #1Old Magnet2021-07-17 13:02

    I believe that uses a Zenith 261-8 carb. Is it the Main Jet Adjustment Screw Assembly you are looking for? That would be a Zenith part number C71-42. Good luck finding one.

  2. #2Old Magnet2021-07-17 13:20

    Found a new one here: https://www.ebay.com/itm/292340262262?hash=item4410d66576:g:4DwAAOSw2GlXEOVk Says if fits a 11752 replacement carb, not sure if it is the same as the original 11355.

  3. #3Old Magnet2021-07-17 13:37

    Comes down to a choice between a Cat #5M5446 or a 9F2903 adjustment screw assembly. Need carb number to pin it down. Plenty of both listed on Machinery Trader Parts Search.

  4. #4LG 782021-07-17 15:37
  5. #5LG 782021-07-17 15:39

    Old Magnet to the rescue again thanks yes it is the whole of part 12 shown on the diagram Main jet adjust ment Will have a look on eBay cheers

  6. #6Old Magnet2021-07-17 20:09

    What's the Zenith tag number on the carb?

  7. #7LG 782021-07-18 01:19

    cant find any tag to speak of only this under side of the air cleaner port looks something like 3.119

  8. #8Old Magnet2021-07-18 11:45

    What the s/n of your tractor. Can match the carb that way although chances of it being changed after so many years might not be all that accurate.

  9. #9LG 782021-07-18 15:55

    This one is #6658 17a

  10. #10Old Magnet2021-07-18 22:26

    That s/n originally had a Cat #5H1227 carb and uses the 9F2903 adjustment screw assembly. Same as the Zenith C71-42 part number.

  11. #11LG 782021-07-19 01:55

    Your a legend thank Old Magnet Had my 13 yr old son turn up from being on holiday today and had him using smaller arms than I and he found the bloody thing in the belly pan probably be 1000 to 1 odds thanks so much for your help though

  12. #12Nige2021-07-19 10:53

    Go buy yourself a lottery ticket, and if it wins anything donate the money to your son.

  13. #13Old Magnet2021-07-19 11:26

    Wow! Long odds for sure....an "atta boy" for your son. Never know what you may find in those belly pans.

  14. #14Nige2021-07-19 13:32

    Usually at least one 9/16” wrench.....

  15. #15Don Shilling2021-07-19 14:05

    I dropped the pans on my Komatsu and found the original wing nut for the air cleaner, a 38 bullet, and a spare key for the start switch!