Andy43 Posted September 15, 2010 Report Share Posted September 15, 2010 There are a few varations to 3k carby venturi sizes. I like the 21mm pri and 25mm sec, but these one's do suffer a off idle stumble, however once there reving there the pick of the bunch. Order a 171 jet for the sec from your toyota dealer and you should be right. The pixs tell the story. the size in mm is stamped on the venturi rim. Cheers Andy Quote Link to comment Share on other sites More sharing options...
Pongwow! Posted September 15, 2010 Report Share Posted September 15, 2010 are they changable? And yeh we race speedway aswell we talked on abother acc, just trying for abit more speed Quote Link to comment Share on other sites More sharing options...
Andy43 Posted September 15, 2010 Author Report Share Posted September 15, 2010 You can swap pri for pri but you will find the discharge nossel for the accelerator pump gets in the way. The nossel is a press fit, if you use a 1mm drill bit as a drift you can tap it out swap the venturi and tap it back in again. The Secondry ones pop out OK and once again you can swap Sec for Sec, but as they are about 6 mm shorter than the Primary ones you cannot swap sec or pri or visa versa. Cheers Andy Quote Link to comment Share on other sites More sharing options...
Pongwow! Posted September 15, 2010 Report Share Posted September 15, 2010 You can swap pri for pri but you will find the discharge nossel for the accelerator pump gets in the way. The nossel is a press fit, if you use a 1mm drill bit as a drift you can tap it out swap the venturi and tap it back in again. The Secondry ones pop out OK and once again you can swap Sec for Sec, but as they are about 6 mm shorter than the Primary ones you cannot swap sec or pri or visa versa. Cheers Andy Thanks mate top bloke, if ya wna no anything gimmie a pm we gotta help each other beat the dattos Quote Link to comment Share on other sites More sharing options...
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