VM Carb balancing on Gs1000s

[gshub]

question number 1. which to buy Morgan or Davida gauges....
2. is there a set carb on 29mm VM carbs to set other up too....
3. where do i get imfo on learning how to do this myself......

[MisterCinders]

Morgan Carbtune is the best. Bass cliff has a walkthrough on his site.

[hampshirehog]

You'll have to decide which gauges you like the best! The Davida ones are a bit spendy but you can feel the quality. I haven't used the new Morgan set yet but the old style is also nice.

However, if you are just going to do your own bike every now and then Steve the cheap universal sets that copy the Davida style are fine.

Incidentally, Suzuki workshops over here got the Morgan style (but with the little balls) and the Kawasaki guys got the Davida style.

With the VMs there isn't a fixed carb like the on the BS carbs. So as long as you don't run out of adjustment it doesn't matter which ones you adjust - though it's easier to get at the outside carbs so one of the middles usually becomes the fixed carb by default (unless the 2 outsides are in balance with each other).

The manual shows how to do it pretty well (not Haynes, the Suzuki one).
Try Youtube - here's a guy using the universal gauges on a Honda. Revs sound a bit high to me on this vid.

http://www.youtube.com/watch?v=t0qf11BOx6o

This guy is going it all wrong:

http://www.youtube.com/watch?v=rge7Totfrio&feature=fvwrel

[GateKeeper]

also you can

go here - http://www.carbtune.com/

and you can find a lot of answers, they even show you how it's done....

cheers

.

[Steve]

question number 1. which to buy Morgan or Davida gauges....
2. is there a set carb on 29mm VM carbs to set other up too....
3. where do i get imfo on learning how to do this myself......

1. Never heard of Davida gauges, had to look them up. VERY spendy.
2. There is no set carb on the VM carbs.
3. The service manual should give you the basics, but the adjustments are under the carb caps.
Remove the carb caps, you will see the adjuster screws with their locknuts.
There is no problem having the caps off while you are making the adjustments.

Try Youtube - here's a guy using the universal gauges on a Honda. Revs sound a bit high to me on this vid.

http://www.youtube.com/watch?v=t0qf11BOx6o

This guy is going it all wrong:

http://www.youtube.com/watch?v=rge7T...feature=fvwrel

Yes, "try YouTube", but definitely NOT either one of those two.

In the first one, he doesn't even know how to number the cylinders, and it sounded like the engine was running about 4000 rpm.
He also said the "pressure was about 11 psi". Sorry, but that is VACUUM, and is meaured in inches of mercury.

In the second one, he at least gets the engine speed right, but his tank is WAAAYYY too high, there is no reason to have it any higher than it would be on the bike. He also does not notice, nor appear to care, that the needles on the gauges don't start at zero, or even agree with each other, he just wants the needles to match.

Well with needles bouncing like that, how are you going to get them to match?

Both of those videos are also very misleading for the VM carbs on our GS bikes. They use different adjustments, so there is no sense confusing anybody looking for help by sending them to see these.

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