I have my 2007 VTX 1300S apart for maintenance. This would be a good time to remove the PAIR valve. I know thee is a thread regarding this, but I can't find it. Someone please post the link.
Also I thought it would be a good time to check the needles in the carb. I have the manual, but maybe someone could give me a short cut or other advice.
I don't have the thread but I'll look for it.
Be careful not to pinch or kink the vent tube running between the jugs from the left side to the carb.
If you are approaching 100,000 miles I would replace the slide valve, honda calls it the diaphragm piston. My 1300 was running great and good mpg. However, there was a pin hole in the slide valve so it was time. Glad I was replacing it. Since I do very long trips, 9K miles, and at times out in Nowhere. Needle OK.
I did not but I probably should have replaced the accelerator pump diaphragm while I was at it as precautionary.
As a preventative I did the petcock and rectifier/regulator also. Someone on here said their rectifier/regulator went out after 100K. I did not want to take any chances. All of this was at 96,000 miles and before a long trip to Alaska and Yellowknife, Northwest Territories. I did not want to take any chances.
I have never had anything break while out on the road so far with 125,000 miles on it. It has always ran great and mpg running a real 70 to 80 without a wind is consistently in the upper 30s. This is actually better than when new.
I did remember a site for the PAIR valve: tech.bareasschoppers.com/engine/vtx-1300-desmog/
If that doesn't get you there just google VTX 1300 Desmog Bareass Choppers tech.
Have a good one.
as used on Race Tech site
rode to 49
States+DC & 11
on my '07 Black Cherry VTX1300R
w/aux tank, Race Tech Gold F&R
,Mean City Cycle, Motolights, Glen's Light Bar w Rivco H-4 aux headlights w/SS Utra bulbs,Radiantz LEDs,Baron tach,Marlin therm&clock, PowerLet,Break-A-Way,K&N, IBA: 2xSS2000,12xSS1000,4xBB1500,2TX1000,NPT 29/76; Lake Superior Circle Tour