Yamaha Virago Carb Sync (1984 XV1000)

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Yamaha Virago Carb Sync (1984 XV1000)

Рет қаралды 11,071

Күн бұрын

Carbs are back in the bike after a full ultrasonic cleaning, installing a K&L carb kit and setting the idle mixture/fuel jet screw for my altitude. Properly ran all the fuel lines (replaced 2), cleaned and lubricated the throttle and choke cables and reinstalled the vacuum hoses.
Made my own carb sync tool from 2 vacuum gauges and ball valves and followed the service manual on carb synchronization for my specific year - 1984 XV1000. Turns out the procedure for my bike is slightly different from some of the other Viragos and that procedure is detailed in the service manual.
Adjustment is made by the adjustment screw located between the two carbs - easier to get at when the tank is lifted and the seat is removed. Remember that the cylinders do not fire at the same time or even 180 degrees from each other so the needles in the gauges will not peak at the same intervals - you'll have to just average them out and get as close as you can to having them balanced.
This procedure should be done when warm and only takes a few minutes to complete.

Пікірлер: 25

@MtRogers-uz6ry Күн бұрын

I LoL’d at the cussing while installing the carbs. I know these words and why!!!

@KensWorldRestorations Күн бұрын

@@MtRogers-uz6ry knuckle busters!!

@twisted12345678 Жыл бұрын

Good one! I trust you because I can tell you make things properly and your garage is tidy :D

@KensWorldRestorations Жыл бұрын

Hahaha!! That's awesome! I try to keep things organized but it has gotten out of hand a few times. Thanks for the kind words...always appreciated.

@yngvardharjo3704 2 жыл бұрын

nice cam man and good work . Happy new year

@KensWorldRestorations 2 жыл бұрын

Thanks, you too!

@yarekk 2 жыл бұрын

nice job!

@KensWorldRestorations 2 жыл бұрын

Thanks my friend!

@richardknott2021 Жыл бұрын

They have special tool for that at Amazon..carb sink screw..

@TheOutsideDev 2 жыл бұрын

Amazing work! Any chance you would have the part #'s for the new spark plug caps? It would be greatly appreciated, thank you very much! Again, great video awesome work!

@KensWorldRestorations 2 жыл бұрын

Thanks Dev. Yeah, they're NGK caps and NGK's part number is LB01EP. L is the 90 degree bend, B is 14mm plug thread, 01 is 1kOhm, E is terminal nut and P is waterproof cover. You can get the full NGK spark plug and resistor cover (caps) chart at www.ngk.com/ngk-spark-plug-resistor-cover-numbering-system. Thanks for the kind words!!

@TheOutsideDev 2 жыл бұрын

@@KensWorldRestorations You are awesome, i appreciate the reply!

@iancrowley3530 2 жыл бұрын

I just bought an 85 Yamaha Virago 1000 yesterday, the guy said the carbs need synced.. After watching your video I feel I can manage it just fine.. Can you please make a detailed list of what you used to make your reader with? ( Gauges and all).. Thanks

@KensWorldRestorations 2 жыл бұрын

Hey Ian...sure thing. The two vacuum gauges are just standard vacuum gauges - you can get these just about anywhere but I got all my stuff at Grainger but Amazon carries everything too (about $9 ea for the Winters vacuum gauge and Metaland 1/4" NPT mini shut off valve was $12 for a pack of 2). The bike pulls about 7-10 in/hg vacuum and my gauges had a range of 0 to -30. The ball valves are just inline air "switches" that can be sourced at many hardware stores too. I used small fuel filters to help reduce needle bounce in the vacuum gauges or if you want to get fancy, get liquid filled vacuum gauges. If you use plastic hoses like I did, make sure it's rigid and not soft/flexible like silicone. Make sure everything seals up well too. Remember that the needle bounce will nearly be eliminated when the ball valves are almost completely closed. At that point, it's just getting the range of vacuum on both carbs as close as possible with the sync screw between the carbs. The cylinders do not fire at 180 degrees from each other so just average out the difference as best you can.

@kotap9929 2 жыл бұрын

As usual a very nice video with useful and important information regarding the work its being done to the bike. It's always a pleasure to watch. 👍💪 As I mentioned before, I'm almost buying a Virago 1100 from my friend and there is a small problem I already know it has. I don't know why but it seems somewhat a easy fix... but I could also be wrong...😔 If you could give me your perspective (even though I understand the obvious difficulty this question poses to you...no sound, no video, no image) since this video regards carburetors, it would be awesome. Don't worry, there is no wrong answer, just your insight is enough. So, my friend showed the bike running for me, and it sounds great, but as soon as we touch the throttle, it dies. There is zero chances to rev the bike up. Amazingly it stars cold with almost no choke even if parked for ages. If we apply a bit of choke it revs up a bit but, again, dies when moving the throttle. At this recent attempt we let the bike warm up with the little bit of choke and then closed the choke and it idles OK and then we tried to rev it up and it automatically dies. Any thoughts, ideas? If not that is ok also.

@KensWorldRestorations 2 жыл бұрын

This sounds a lot like the main fuel jets being clogged. There are a number of fuel and air jets in a carburetor. In most carbs, the pilot jet is a small jet that passes fuel through one of the smallest channels in the body of the carb. The pilot jet is mostly used for idling and small throttle use. When the bike won’t idle properly it’s usually the pilot jet being blocked. In this case the bike idles fine but when the main jets are clogged, as you open the throttle there is little to no fuel going into the engine as the slide is open. The bike basically “runs out of fuel” and quits. It doesn’t sound like a big problem unless you don’t have access to parts or tools. Clean or replace the main jets and I’m pretty sure your problem will be fixed. Have a look at my carb cleaning videos if you want to see mine done.

@kotap9929 2 жыл бұрын

@@KensWorldRestorations many thanks! I will do that. I'll look into the jets and watch your carbs video (I'll check your KZfaq channel). I know the person who owns the bike and I do believe is a clogger issue since it is parked for a long time. Sounds like I'm starting my KZfaq videos sooner then I expected...😁 need to get the bike first. Again, thanks a lot for your opinion and time. Hope to have some news soon. Cheers! 😎✌

@KensWorldRestorations 2 жыл бұрын

@@kotap9929 Good luck - when they sit around without running, the ethanol in the fuel is what causes the gumming up of the carbs.

@melvinsmutters7662 2 жыл бұрын

If I bring you my xv1100 will you sort it out like this for me!??

@KensWorldRestorations 2 жыл бұрын

Nobody's ever asked that before!!! Sure...why not?

@melvinsmutters7662 2 жыл бұрын

Awesome! I saw mention of you being in Canada? Or are you in the states with a Canadian bike?

@KensWorldRestorations 2 жыл бұрын

@@melvinsmutters7662 I'm in Canada - in Calgary and it's a Canadian bike.

@melvinsmutters7662 2 жыл бұрын

I'm in the states unfortunately. Curious what shipping would cost ha ha. I'll take you up on it one day. My funds are currently going toward a remodel of my first house. Meantime I genuinely appreciate the care you take to explain things in your videos. Good quality audio well thought out. I'm a fan. I hope your doing well up there. I'm just across lake Erie. Keep making videos I'll keep watching. God bless

@KensWorldRestorations 2 жыл бұрын

@@melvinsmutters7662 Thanks! I'm seriously thinking about doing carb overhauls for people as a side business. I'll keep you posted. I spent a lot of time down your way in Southern Ontario. Thanks for the kind words.

@yngvardharjo3704 2 жыл бұрын

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