keikat02 Posted September 4, 2008 Share #1 Posted September 4, 2008 Where is the "Idle Adjustment Screw" on a 86 VR located. If somebody has a good picture of where it is located, I would appreciate the opportunity to look at it. I have a Yamaha Service Manual; however, I think the author needs to take the pictures again. Most of the pictures in my manual are cloudy and dark. Really hard to tell anything using the pictures. Anyway from what I have read on this website, the Idle Adjustment Screw is on the "left side of the bike as you are sitting on it. It is plastic and does not have a slot or is not designed to use a screwdriver. It must be turned by hand." Is this correct? Does the Idle Screw face outward, towards the front or back of the bike, up, or down? Any help or instructions as to the location would be greatly appreciated. Thank you, Allen Dallas, Texas Link to comment Share on other sites More sharing options...
utadventure Posted September 4, 2008 Share #2 Posted September 4, 2008 Allen- I don't have any pics with me here at work but the idle screw is on the left side. Locate the sync screw. Then look behind the sync screw from an underneath position. The idle screw is pointing down and and is a thumb screw type and can be adjusted without any tools, just your fingers. Mine was brass colored if I remember correctly and has slight notches all around the outside for grip. Good luck on your adjustment!! Dave Link to comment Share on other sites More sharing options...
hipshot Posted September 4, 2008 Share #3 Posted September 4, 2008 the idle adjust screw, is behind the small plate , that has the carb drain hoses, running through it, it faces DOWN. it's about the size of a dime. sorry i don't have any pics either. hope this helps. just jt Link to comment Share on other sites More sharing options...
keikat02 Posted September 4, 2008 Author Share #4 Posted September 4, 2008 Thanks for the quick reply. I should be able to find it now. However, after I adjust the idle screw, does the adjustment "mess-up" the carb synchronization? Allen Dallas, Texas Link to comment Share on other sites More sharing options...
GigaWhiskey Posted September 4, 2008 Share #5 Posted September 4, 2008 You might need a flat head screwdriver to get to the screw to turn it, I know I have to. Sometimes tap the screwdriver to make it turn. Btw, where in Dallas? Link to comment Share on other sites More sharing options...
Condor Posted September 4, 2008 Share #6 Posted September 4, 2008 (edited) does the adjustment "mess-up" the carb synchronization? Allen Dallas, Texas Nope..... Attached are a few pics of the idle screw to help locate it. I don't know why Yamaha hid it the way they did??? Edited September 4, 2008 by Condor Link to comment Share on other sites More sharing options...
hipshot Posted September 4, 2008 Share #7 Posted September 4, 2008 Nope..... Attached are a few pics of the idle screw to help locate it. I don't know why Yamaha hid it the way they did??? JACK! you da man! very nice pictures! just jt Link to comment Share on other sites More sharing options...
keikat02 Posted September 4, 2008 Author Share #8 Posted September 4, 2008 If it had been a snake, It would have bit me!!!!!! Link to comment Share on other sites More sharing options...
hipshot Posted September 4, 2008 Share #9 Posted September 4, 2008 If it had been a snake, It would have bit me!!!!!! Don't feel bad , Allen. we have all been there, or somewhere close! lol just jt:bang head: Link to comment Share on other sites More sharing options...
safetyguy Posted September 4, 2008 Share #10 Posted September 4, 2008 Nope..... Attached are a few pics of the idle screw to help locate it. I don't know why Yamaha hid it the way they did??? I also have a same vintage Virago 535. The Virago has same idle screw mechanism & placement which works well on the little V twin but it is a admittedly a pain on the VR. I think Yamaha did that to have a smaller number of parts in the little bins at the dealership. Interestingly enough, the carbs do look the same between the two bikes (except that there are only two) - I have to look into that. Link to comment Share on other sites More sharing options...
MikeM8560 Posted September 4, 2008 Share #11 Posted September 4, 2008 Is this the same position for my 84? Link to comment Share on other sites More sharing options...
Venturous Randy Posted September 5, 2008 Share #12 Posted September 5, 2008 Adjusting the idle should not change the sync. Also, another helpful hint when adjusting the idle is to to give it a little throttle to take the pressure off the screw itself. It makes it a lot easier to turn. RandyA Link to comment Share on other sites More sharing options...
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