The inside of the bushing is aprox 10 mm.The only thing that goes through the bushing is the bolt that holds the a arms on.Are you talking about the end caps that sandwitch the arms inbetween the mounting points?
I would start with the 310's,going lower in #'s will make it leaner!Always safer to start rich+work to the sweet spot.Those specks should be real close to optimum.
You must at least loose the snorkel.With temps.around 40 deg.1+1/4 turns out with air screws,25 piolet,middle clip,+310 mains.That should be real close,You'll probably have to go down one or two sizes on the mains+adjust the needle as needed.
Welcome to the site.There are some very knowledgeable+helpful people here as well as the usual clueless clowns.Choose wisely who you absorb information from.For used banshee parts (NYUK)is the guy you want to deal with if possible.No bullshit+honest as the day is long. John
Pittsfield Is hard core rocks+trail ridding,But it's ligit+you can make a weekend of it if you camp.I'm from the Cape,what kind of tech help you looking for?
That place is in Cannon NH.Myself+our group had a great time there last spring.My bro just talked with the owners last month.They sold the place+it's closed now.
I would guess you will find some sort of issues with your cooling system components,worn impeller,clogged radiator,ext.The Cub cylinders should run cooler than the stockers.
A set of JJH needles should give you the results your looking for.Depending on how temperary they will be,you'll have to decide if it;s worth the cash output.
I would agree with the jettinng recomondations.Also be cautious with any extended throttle in or beyond 4th gear.You will suck those those bowls dry very easily. Unfortunately i know this from experence.
Your pilot circuit is lean.Go up with the pilot and in with the air screws or both.You should have jjh needles,45-48 pilets,+155-162 mains for your setup.
Dave Good to see your still kickin.I noticed one of your Imperial house of bearing enlightment center stickers on my toolbox the other day+ thought of the old days. John
I would recommend dropping the needle to lean out the mid circuit,change nothing else+ report back with findings.I'm sure we can help you out. By changing only one thing at a time+testing.Note the change in performance+let us know the results.