Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
12-28-2016, 06:09 AM,
VStar 650 Classic Carb Sync Question
Hi Folks,

I have a VStar 650 Classic and figured it should be easy to do my own carb sync, following the descriptions I found in the Yamaha Service Manual and videos on the web.

I found the two sync ports, one plugged, the other connected with a hose to the Air Cut Valve Assy. As I wasn't sure whether these were the right ones, I connected the two ports with a long 3/16" PVC hose that I was about to use to build a simple difference manometer, i.e. use the same configuration as when measuring the difference, just without the oil in the hose. However, the bike didn't really start anymore when I did that. It seems that disconnecting the hose to the Air Cut Valve Assy destabilizes the carburator system too much.

I am now considering a t-junction to avoid having to disconnect the hose to the Air Cut Valve, although the videos and descriptions around suggest that it should work without. Unfortunately none of the videos I found shows clearly what to hook up
where and what to do with any dangling hoses.

I would be grateful for suggestions.
02-24-2017, 04:22 PM,
RE: VStar 650 Classic Carb Sync Question
Are you 100% sure you don't have any air leaks in the manometer?
Possibly Related Threads...
Thread Author Replies Views Last Post
  Carb issues Exodis 0 337 04-25-2018, 10:49 PM
Last Post: Exodis
  Cleaned Carb | Idles without Choke but can't rev engine nm8shun 0 546 11-27-2017, 10:28 PM
Last Post: nm8shun
  2000 650 Carb reduild questions apbling 1 1,045 08-23-2017, 10:31 AM
Last Post: apbling
  2003 1100 Vstar Carburetor question amauro 1 1,415 07-04-2017, 07:52 PM
Last Post: amauro
  V Star 1100 carb sync cmHg RuggedNorth 0 1,412 03-15-2017, 06:01 AM
Last Post: RuggedNorth
  2006 1100 midnight custon carb specs joshobermueller 0 1,080 01-15-2016, 02:30 AM
Last Post: joshobermueller
  Cost to clean, rejet, sync carbs??? pablotech1 2 2,784 09-21-2015, 03:20 PM
Last Post: pauli466
  Carb change after AIs removal. johnvelo 12 6,754 12-18-2014, 12:27 PM
Last Post: Keith
  Which carb rebuild kit? Bulldog7906 11 6,625 07-15-2014, 11:28 PM
Last Post: nick59
  Need carb help - V-Star 1100 RatBikeRandy 8 7,932 06-03-2013, 07:29 PM
Last Post: medic8852

Users browsing this thread:
1 Guest(s)