Picked the bike up today and went for a ride.Any information about re-jetting would be appreciatedJET NEEDLE ( Clip position ) JET NEEDLE ( Straight section ) SLOW JET and AIR. So I had my carb re-jetted with a thunderslide setup from a dealer. Walky111 said: I just went to a stage one set-up on my 2001 88 twincam B (Vance & Hines Bigshots with a Hypercharger) the power was great however the bike would pop and burp on De-celeration. Apparently this engine should be getting to 60mph in about 6-8 seconds.7,412 Posts.
Re Jetting Carb How To Do It
Similarly easy to replace are the springs. First off, you can always switch to slimmer metering rods it takes all of about 30 seconds to replace them. I figured out how to do it and believe me, if I can anyone can. Bruce, re-jetting is very easy.
Actually it is _much_ easier than it looks. As a safety measure, I took a couple of shots of them with my digital camera beforehand, in case I couldn't figure out how to reassemble them. It's easy but I found disconnecting the linkages - which you have to do to get the top of the carb off - to be daunting the first time. Lastly, if you just can't get happy with these, you can always change the jets.
Then it should jump up for an instant when you blip the throttle (it will then go back down as vacuum stabilizes). Sounds like a lot of gear, but it's extremely easy.The springs are key! One thing you should do just to make sure you're in the ballpark is, loosen one of the ear things above a metering rod, turn it sideays, and simply watch if the rod is sucked down at idle. The only way I could figure out to really dial it in was to use both a vacuum gauge and an A/F meter, coupled with a printout of my MS Excel calculations. It's not obvious, and small changes will cause big differences in the A/F ratio at given speeds. The _area_ for the fuel to pass through, and not the size of the jets or rods per se, is what you care about.
5200 is your redline, according to the factory. 030 over changes the displacement if so you just plug that #. I mean just run the #s:CID x Max RPM / 3456 = CFM 100% Volumetric VEI don't know if. If it doesn't bounce up for a second when you blip the throttle, you probably need a stronger spring.Nevertheless, you have an awful lot of carb for a 3.5.
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