Okay Ive determined I need a rejet. Just installed the Hypercharger and the bike (95 FXSTC) has drag pipes.
Trying to do some homework, but this is confusing...

some say....
Just change the Pilot to maybe 45 and the main is FINE from stock.....(should I just buy the single Pilot Jet for $5, or do the DynoJet Kit??

Drill or NEVER drill the plug for the mixture adjustment??

Use or NEVER use a lighter/shorter spring in the top....

Looks like I have really good access to the bottom of my carb, any reason why I shouldnt just leave it on the bike? It seems easier....
Thanks so much for everyones help!

 

Stay with stock jets but experiment with different sizes. Maybe get a sportster pre accellerator pump needle (65 needle).

You need to drill out the welch plug that covers the idle mix screw in order to gain access to that screw. You drill a small hole carefully not going too deep so you can use a sheet metal screw to remove the plug. Now you have acces to the idle mix screw.

You might be referencing the air bleed hole in the piston/butterfly/slide. Do not drill that! Leave it alone.

Stock jets a little larger (based on how it runs too lean or too rich, etc), a needle change and or shims, and your in good shape.

Yes, leave spring alone. Not hard to remove carb, but if you can get to things without pulling, then do it. But a rejet is a great time to inspect and clean your carb. Do you know what size jets are in there now? Kind of hard to see the numbers with the carb in place. Yes, a 45 or 46 pilot is good. Main varies based on your pipes.

I'm not a big fan of the dynojet. The ones I've seen seem to run way rich and mileage sux. Never been a fan of hypercharger or open drags either, but it's not my bike. Good luck. YD

 

Try 48/185 for starters and as mentioned,access the idle mixture screw.

 

Many thanks Guys!
well I finally pulled the carb.
I found the plug had already been removed. and the screw was over three turns out.
The main looked like 175 (I thought this would be big enough?)
Pilot was too hard to read. looked like a STAR symbol

 

The star is the symbol for Keihin (the manufacturer of your carb). There are numbers on there, so time for a magnifying glass...

175 is probably good. It's what I run on my stage I 1340. Leave that alone for now and work on your slow/pilot jetting first. YD

 

very cool! I now have a plan of attack! The star really seemed to be the only marking on the pilot. Would this indicate stock?

 

yes see star on top of the letter "I" in Keihin:

http://keihin.it/

 

yes thats the shape. So the main was increased to 175 and the Pilot was left stock....?
I think that means its a 42 Pilot jet. I am only able to put a .017 gage pin thru the center orfice. Maybe this is my problem.....
or do some of the Keihin pilots just dont have numbers?

 

First attempt: CVP Tuners Kit recommended:
46 and 185...I wanted to try what they recommended right off the bat.
well with the hypercharger, the 46 IDLED nicely after getting the mix right and a short run and Idle adjust. BUT it started off really SLOW.
Too much gas??
Didnt really open it up, as I neared three quarter open, it seemed to bog a bit as well....

 

Absolutely had to add, Many thanks to Yankee Dog and Am4wag. Just giving me the advice and courage to get in there and start changing and adjusting! This lesson is invaluable.
Im really gaining confidence. I mean who wants to mess up a nice bike...I was stressed.
not anymore....its kinda fun!