Thanks
It looks like I need a larger main jet or smaller needle(metering rod).
Same principle as the old carter & quadrajet auto carbs.
Do I need to tear it apart for size identificaiton, then get the next richer size?
Or is there a kit that has several tuning options?
Sorry for the questions, just new to here, but an old boat & car mechanic (years ago)
Missed the part about raising the needle. How is this done?
You could just buy the 45 & 46 low jets or just go with the 46 and be done with it. As far as the high speed jet, probably have a 175 in there now, next size would be a 180 but dropping the float bowl will tell for sure and save some time reordering jets.
Don't ya just love those Qjet carbs?
As far as the needle, look in the bottom of this post and it will show you.
CV Carb Rejet Pics - Harley Davidson Community
Run the needle "C" clip in the center groove and give it a try. You can also use a #4 washer or two under the 'c' clip fine tune it.
Take a look here
CV Carb Circuits - Harley Davidson Community
Quick and easy way of testing the main jet size.
Run the bike through the gears into third gear and run third up to 60-70 MPH full throttle, then chop the throttle about 1/8 to 1/4 back and see if the bike either surges ahead or stumbles then recovers.
If it surges ahead, your jetting is lean
If it stumbles and recovers , your jetting is rich
If it makes no difference, you're pretty close.
One other thing here, you probably have the non adjustable needle in the stock carb, the one with the nail type head on it. You can use 2 - #4 washers under the head of the needle to raise it up for a quicker fuel curve.