70sBulRacer Posted 7 hours ago Report Share Posted 7 hours ago I’m in the process of rebuilding the Spanish Amal 930 concentric on my 1971 Lobito 175 Mk4. The needle jet is stamped 106A, and that’s what is listed in the owner’s manual as the correct jet. Amal concentrics had long and short needle jets and some jets were for 4 stroke applications, with others being for two strokes. I have seen lots of Amal needle jets for sale that are designated 106, but not 106A. Does anyone know what the difference is? Thanks for any help! 1 Quote Link to comment Share on other sites More sharing options...
Trials-dabbler Posted 1 hour ago Report Share Posted 1 hour ago (edited) While I cannot answer your question directly, looking through the Bultaco (red) parts book, here's what I found. The 106 needle jet is listed (18.15-020/106) for the following models: Lobito MK III, Lobito MK IV, model 74, Matador MK IV, Sherpa T 250, Sherpa S 100, 125,175, 200 and Pursang MK II & III. The 106A needle jet (76.15-020/106A) appears unique, only being listed for the Lobito model 76 series. Same for the 105A (76.15-020/105A) and 107A (76.15-020/107A) needle jets, specific to the model 76. Your 30mm carburetor 76.15-001 The model 76 float bowl (76.15-003) has the notation; "with lowered main jet". I hope this helps some. You have a very nice-looking model 76 Lobito! . Edited 1 hour ago by Trials-dabbler Quote Link to comment Share on other sites More sharing options...
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