dumper_uk Posted May 28, 2005 Report Share Posted May 28, 2005 Saw this on Ebay..Does anyone know if they are any good? ADJUSTABLE MAIN JET for 2 strokes, Mikuni, Keihin, 250r Ebay link Quote Link to comment Share on other sites More sharing options...
wesw Posted May 28, 2005 Report Share Posted May 28, 2005 if it works it would be a cool idea or thing to have Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 29, 2005 Report Share Posted May 29, 2005 Looks like they're trying to copy dial-a-jet's system. If it sounds too good/too cheap to be true, it usually is. http://www.thunderproducts.com/dial_a_jet.htm Quote Link to comment Share on other sites More sharing options...
03bansheeLE Posted May 29, 2005 Report Share Posted May 29, 2005 how would that work cause you main jet is in the bottom of the carb not the top. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 30, 2005 Report Share Posted May 30, 2005 It sprays additional fuel into the venturi to compensate for a lean main jet. It gets this fuel from the bowl. However, how it "Leans" it out...I don't know....might have to ask a fellow dial a jet user... Quote Link to comment Share on other sites More sharing options...
Tim C Posted May 30, 2005 Report Share Posted May 30, 2005 You put a smaller main jet in and then the dial-a-jet puts the rest in to the carb. It sucks fuel from the bowl up to the dial-a-jet. I have Vito's version of it and it works good. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 30, 2005 Report Share Posted May 30, 2005 Kinda what I figured. Start lean on the main, then let the dial richen it up. Thanks...much!! Good info to know! Quote Link to comment Share on other sites More sharing options...
BANSHEE_JAY Posted May 30, 2005 Report Share Posted May 30, 2005 SO are you saying even if you have a smaller jet that is running lean the dial a jet will richen it up on its own without any tinkering? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 30, 2005 Report Share Posted May 30, 2005 No...it is not automatic. Only automatic is fuel injection. I'm sure there's a knob to turn or screw to turn to adjust it. Still way easier than draining and removing the bowls...though... Quote Link to comment Share on other sites More sharing options...
Tim C Posted May 30, 2005 Report Share Posted May 30, 2005 You adjust the dial-a-jet to fine tune the jetting by turning the dial. So you don't have to go through the bother of changing main jets Quote Link to comment Share on other sites More sharing options...
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