Dirty McGerty Posted August 3, 2011 Report Share Posted August 3, 2011 Will someone with a little more knowledge than me help. I am building a quad a little different from the ones i have had in the past. This quad will have .020 forged pistons with 19cc domes in the cool head. It has CPI in frames, but this is the fiirst time I have upped my carbs. I got my hands on some 34mm mikunis. I am wondering what jetting should be used, or at least an accurate starting point. I know the propper way to check the jetting, but surely I am not the first to run this or a simular configuration. Start up jet sizes would be appriciated. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted August 3, 2011 Report Share Posted August 3, 2011 any porting done ? whats your elevation ?, what filter setup ? what needles and jets are in there now ?. not that im any good with these carbs, but these question will help others help you. Quote Link to comment Share on other sites More sharing options...
Dirty McGerty Posted August 3, 2011 Author Report Share Posted August 3, 2011 any porting done ? whats your elevation ?, what filter setup ? what needles and jets are in there now ?. not that im any good with these carbs, but these question will help other help you. Well ...It's funny you would ask those questions. No porting Elevation = North Texas (not sure). Will be riden local and occasionally at lil' sahara in oklahoma. I would like to keep the stock air box for trail riding and water crossings. I will consider whatever is reccommended by knowledgable people though. I just won the carbs on ebay and do not have them in hand yet. 1-2 more days until they arrive, so I do not know needle and jet sizes yet. Quote Link to comment Share on other sites More sharing options...
Dirty McGerty Posted August 3, 2011 Author Report Share Posted August 3, 2011 Well ...It's funny you would ask those questions. No porting Elevation - 750 asl I would like to keep the stock air box for trail riding and water crossings. I will consider whatever is reccommended by knowledgable people though. I just won the carbs on ebay and do not have them in hand yet. 1-2 more days until they arrive, so I do not know needle and jet sizes yet. Quote Link to comment Share on other sites More sharing options...
Dirty McGerty Posted August 3, 2011 Author Report Share Posted August 3, 2011 Well ...It's funny you would ask those questions. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted August 3, 2011 Report Share Posted August 3, 2011 no porting, stock airbox, i think you are over carbed. stock carbs maybe 28's would go well. id wait for some one else to chime in, but you could be around the 260-280 mark ?? let us know what needles it has, and remove the part that the main jet screws into (dump tube / needle jet) and see what number is on that, the part is number 37 in this diagram http://www.sudco.com/Diagrams123/exptm.gif Quote Link to comment Share on other sites More sharing options...
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