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1993 XV750 Vacuum Diagram or advice on what goes where.

Have a question about fixing something on a Yamaha Virago XV750? Post it here!
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HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Mon Mar 16, 2020 12:17 pm

Both boots have a brass port. This is the exact ones I ordered.
https://www.amazon.com/gp/product/B07WT ... UTF8&psc=1

I currently have a plug? I guess that is what you would call it on the back boot. Plug and clamp.

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ViragoJoe
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Joined: Wed May 20, 2015 10:36 am
What Virago you Own: 1996 Virago Special XV1100SH
"Never ride faster than your Guardian Angel can fly!!"

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by ViragoJoe » Mon Mar 16, 2020 12:55 pm

HeavensSatans wrote:
Mon Mar 16, 2020 11:25 am
I noticed on that viddy he has both vac lines attached to the carb boots. I only have one attached as per the diagram provided. Which one is correct?
That's called a vacuum port blind plug.

Those plugs are used more on XV1000 and XV1100's for the Rear Carb Boot has two ports on it for Carburetor Synchronization purposes and the Vacuum line has to stay on that Carburetor to activate the Sensor Pressure Switch that these bikes have. The blind plug is removed to synchronize that carburetor.

I just revisited his video again. He does indicate the year as a 1993 Virago he is working on. That year looks to require both boots be connected for some reason. Virago's do change from year to year. Also, some folks have modified their bikes for one reason or another. Which can confuse us even more when it comes to working on these bikes (i.e. The flat flange gasket on his carburetor boots).

I would say as long as your vacuum requirements are met. Vacuum petcock works, A.I.S system works, all is good.

XV1000 and XV1100's are a different story on how their vacuum systems operate.

I just went back to the Air cleaner diagram that I provided you earlier and it shows a BLINK PLUG on the Rear Carburetor Boot. I would go with that diagram. He or his brother may have made changes to that bike.

After all he is only showing how to remove and install the carburetors, not any modifications that they may have done.
ViragoJoe
1996 XV1100SH Virago Special
"Never ride faster than your Guardian Angel can fly!!"
;)

User avatar
HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Tue Mar 17, 2020 10:44 am

I'll be working on it again this weekend. Thanks again for the info, I'll keep yinz updated.

User avatar
HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Mon Mar 23, 2020 12:28 pm

An update.

Ordered 2 carb rebuild kits last week, comes in today. Was going to attempt to get some work done over the weekend but the sky pooped quite a bit of snow between thurs and fri so working outside over the weekend was out of the question.

Sat and Sunday look alright out here for the coming weekend. Sunny and highs in the lower 50s. Will get it out this weekend and rebuild and get it back together and have a update.

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ViragoJoe
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Posts: 1469
Joined: Wed May 20, 2015 10:36 am
What Virago you Own: 1996 Virago Special XV1100SH
"Never ride faster than your Guardian Angel can fly!!"

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by ViragoJoe » Mon Mar 23, 2020 12:40 pm

HeavensSatans wrote:
Mon Mar 23, 2020 12:28 pm
An update.

Ordered 2 carb rebuild kits last week, comes in today. Was going to attempt to get some work done over the weekend but the sky pooped quite a bit of snow between thurs and fri so working outside over the weekend was out of the question.

Sat and Sunday look alright out here for the coming weekend. Sunny and highs in the lower 50s. Will get it out this weekend and rebuild and get it back together and have a update.
Thanks for the update. Keep us posted on your progress.
ViragoJoe
1996 XV1100SH Virago Special
"Never ride faster than your Guardian Angel can fly!!"
;)

User avatar
HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Sun Apr 05, 2020 6:36 pm

Hello all and hope yinz are surviving the new plague.

Just got done putting carbs back in after the rebuild. Hooked both the vacuum lines up and everything is where its suppost to be. One big problem now, she won't start.

Previously even with the dirty as hell carbs and incorrect vacuum line not hooked up, and a big air leak at one of the boots, I at least got it to run. Now, nada. Tries to kick over. Wants to run. I got a video of me trying to get it to run I will upload to YouTube shortly and get on here and maybe get pointed in the right direction.

For now, its time to have a beer to help ease the frustration.

User avatar
HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Mon Apr 06, 2020 10:06 am

Welp....Come outside this morning and get my Honda started and look over at the Virago and shes pissing gas again. Think I may just take the carbs off and have them professionally cleaned and put back together. :/

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ViragoJoe
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Posts: 1469
Joined: Wed May 20, 2015 10:36 am
What Virago you Own: 1996 Virago Special XV1100SH
"Never ride faster than your Guardian Angel can fly!!"

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by ViragoJoe » Mon Apr 06, 2020 10:40 am

HeavensSatans wrote:
Mon Apr 06, 2020 10:06 am
Welp....Come outside this morning and get my Honda started and look over at the Virago and shes pissing gas again. Think I may just take the carbs off and have them professionally cleaned and put back together. :/
Check your oil level sight glass to see if your oil sump has taken on fuel as well.
ViragoJoe
1996 XV1100SH Virago Special
"Never ride faster than your Guardian Angel can fly!!"
;)

User avatar
HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Mon Apr 06, 2020 10:44 am

Sorry for three rapid replies on the same thing, looking back at my order for the replacement petcock I ordered one for an 80s virago. Dumbass. Been talking to a buddy of mine who does custom bikes, hes done a few viragos of my year. Hes trying to convince me to go with the old school grav fed system and ditching the vacuum style. He thinks the petcock is being stuck open.

User avatar
HeavensSatans
Posts: 14
Joined: Mon Mar 09, 2020 10:32 am
Location: Denver, Colorado
What Virago you Own: 1993 XV750

Non Viragos -
2000 Honda VLX 600
1982 Suzuki GS750T
1966 Bridgestone BS90
2004 Honda Ruckus

Re: 1993 XV750 Vacuum Diagram or advice on what goes where.

Post by HeavensSatans » Mon Apr 06, 2020 10:45 am

ViragoJoe wrote:
Mon Apr 06, 2020 10:40 am
HeavensSatans wrote:
Mon Apr 06, 2020 10:06 am
Welp....Come outside this morning and get my Honda started and look over at the Virago and shes pissing gas again. Think I may just take the carbs off and have them professionally cleaned and put back together. :/
Check your oil level sight glass to see if your oil sump has taken on fuel as well.
Def going to do an oil change, probally took some gas, but I haven't put more than a half a gallon in the tank since I started working on it at least.

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