CV carb upgrade

jordan, I would not drill any carb , just use the bit to clean out the hole by hand with the drill bit , don't know to much about dyna jet kits except had one & could never get it dialed in just right , tried the CV kit & dialed it in first try & it's been set there for over a year now

Hi Jordan, beyond any bias (I own CVP), I'll say that there are plenty of people on this forum and others that have converted from DynoJet to the CV Performance tuners kits and components with great success. The biggest complaint I always hear about the DynoJet and similar kits is the adjustable needles and overly rich jet holder tube replaces one problem with another.

As you probably already found, drilling a slide (as suggested by DJ) is a bad idea and causes more problems than it cures. The CVP kit does not recommend drilling the slide other than with a smaller provided bit to clean up a port that might have burrs from the factory. A new replacement slide will be just fine out of the box.

Since you have already gone the route of cams and a new ignition I highly recommend ditching the factory mufflers for a set of SE's, Pythons, Rush, or other similar slip-ons that have improved flow baffles. Punching or drilling factory baffles rarely works out well and can cause flat spots and lack proper scavenging of exhaust gasses.

you really don't want a super light spring, contrary to the
"you'll have better throttle response" line a too light spring
combined with the other changes can cause the slide to hunt
up and down, add in a drilled slide port that changes the pressure
and thus the purpose of the slide, you get erratic idle and throttle
as the slide moves vs holding steady.

That slide is designed to find the optimum point where air flow, velocity and
fuel max the potential for the engine. It's why a Super G on a smaller performance
engine will actually hurt low end performance. Whack one open and you get a delay
while the engine tries to catch up to the big open port, the CV or Constant Velocity
carb cures that and is best for Street bikes.

Hi Jordan, the CVP spring is lighter/shorter than stock but not as light weight as the DynoJet springs which use a much lighter wire. We use a harder stainless steel wire that not only retains it's tension but has been balanced for both compression and recoil rate optimal to the CV carburetor's requirements.

If looking for a new set of slip ons check out Rush. I've always liked them and they have options for different size baffles (sold separately) to find just the right sound.

Regarding Canada (I think that is where you're at), it should be mentioned that shipping rates from the US to Canada went up nearly 60% this month! Something to consider when ordering. Combining multiple orders with friends might save you some $$. Not to get off track here, but ordering that spring which is $7.95 would cost you almost $25 to ship! Yes ridiculous I know.

Big Ear Inc - Big Ear Inc.