ViragoTechForum.com :: Yamaha Virago XV Forums That Rock!!!

#1:  AIS/MCV or what? (SOLVED) Author: hamgravy,  Posted: Thu Aug 26, 2010 7:37 am This is probably a dumb question but I have not been able to find a clear answer with pictures anywhere, not in the forum or in the manual for this item on my 86 XV700. The first time I removed my carbs I would have bet $100 it was a fuel filter. After ready several posts I believe that the only filter is a petcock screen and this is probably the AIS/MCV combined. Any help please. aIMG00053-20100825-1531.JPG  Description:  Filesize:  47.15 KB  Viewed:  0 Time(s) Last edited by hamgravy on Thu Aug 26, 2010 10:18 am; edited 3 times in total

#2:   Author: totallyredvirago,  Posted: Thu Aug 26, 2010 7:56 am mcv.. you can remove it and plug the vacuum hose at the manifold....dan

#3:   Author: grazingazer,  Posted: Thu Aug 26, 2010 8:35 am as dan said: it's the mixture control valve...the ais [air induction system] appeared in later years

#4:  Re: AIS/MCV or what? Author: hamgravy,  Posted: Thu Aug 26, 2010 9:36 am Thanks guys I appreciate the info, this is a great site. Now if plug the vacuum line what do I do with the fuel line can that just be pluged as well?

#5:   Author: totallyredvirago,  Posted: Thu Aug 26, 2010 9:44 am you will remove the "T" and hoses. plug the big nipple on the front intake. and route a new hose from the little nipple (front intake) to the peck cock.....dan

#6:  Re: AIS/MCV or what? (SOLVED) Author: hamgravy,  Posted: Thu Aug 26, 2010 10:13 am Thanks Dan will this when I get home.

#7:   Author: totallyredvirago,  Posted: Thu Aug 26, 2010 10:23 am side note: if you remove the mcv you may have to readjust your carbs....dan

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