rocketboy Posted February 1, 2005 Report Share Posted February 1, 2005 well guys i know this has been posted like a kazillion times,but search info doesnt specify my problem all that well. i cant get my bike runnnig decent in bottom end up to 1/4.my 28pwks come prejetted from cpw for 150 mains and 52 pilots this seemed okay at the time ,i updated my porting to a slightly higher transfer timeing and added (2) 1/4 auxilay ports in the intake box of the jugs ,now by bike is running bad at bottom end till 1/4 cant tell if its hesitation or bog ,choke doesnt tell me shit either i figured this mod would flow more fuel at lower rpms considering its a popular mod to gain bttom end back after a agressive port? am i now giving it to much fuel? so i changed to a 48 pilot stll seems not right air screws dont really do dick to change it either im kinda at a loss ,ive done she jetting a million times but these carbs are hard to read jetting on plugs seem a bit wet too im in PA. with +4 degrees and rockets with a cut head,v force any you guys know about where my pilot should be am in the ballpark ,other than bottom it runs like a scalded cat on crack! Quote Link to comment Share on other sites More sharing options...
tats4life Posted February 1, 2005 Report Share Posted February 1, 2005 try dropping the pilot to a 45 Quote Link to comment Share on other sites More sharing options...
JayFressh Posted February 1, 2005 Report Share Posted February 1, 2005 Post a pic of auxilary ports in the intake box, I'm not familiar with this? Quote Link to comment Share on other sites More sharing options...
Banchetta Posted February 2, 2005 Report Share Posted February 2, 2005 I have those ports in my stroker...try a smaller pilot. How does it start?? Do you need the choke? Quote Link to comment Share on other sites More sharing options...
rocketboy Posted February 2, 2005 Author Report Share Posted February 2, 2005 wellits only 20 degrees im just trying to break her in ,but initially i do need to choke it and a tad bit of throttle but once warmup a bit it starts with no choke at all .ive heard pilots coming@50 or so stock, are usually to rich ,i guess its rich ,but choke ing or air screw turning doesnt really make it a whole lot better if any that i can tell,iguess ill try a4 5 pilot next Quote Link to comment Share on other sites More sharing options...
Banchetta Posted February 2, 2005 Report Share Posted February 2, 2005 hhmm.....well you added more transfer which will take away the bottom to add top end....You have a extremely top end pipe, so between the two, you can't expect much for bottom end no matter what your jetting is...one thing you can try is to raise the needle. Try moving the clip towards the pointy end one clip, if that helps then try another clip...If you find yourself at the richest setting and your shee likes it, then you might want to try different needles.. Quote Link to comment Share on other sites More sharing options...
rocketboy Posted February 2, 2005 Author Report Share Posted February 2, 2005 i can tell my bottom end is still gonna be torquey but its not punchin like it wants to, its cutting out from a lean or rich circuit not sure if bog or hesitation ,ill try the 45s hell one of thses pilots has gotto get her purrin again in bottom rpm ,this motor is really gonna rip if i can get the air /fuel b.s cleared up Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted February 2, 2005 Report Share Posted February 2, 2005 i personally think those boost ports are worthless. i think you should have left the intake how it was. you do have a very good choice in pipes tho! Quote Link to comment Share on other sites More sharing options...
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