CVK quick tips

Are ya having a problem with your rig? We'll try to help. Share your tech tips and experiences here. Dr. Billy Glaser, author of the "Unofficial 750 Ural Service Manual" site myural.com, is moderating this section.
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Here is the place for you to ask questions about or share your experiences about servicing or repairing your Ural or Dnepr. Please post topics concering modifications or accesories in the "Modifications and Acessories" section. Please post oil related questions in the "Oil Threads" section.
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gobium
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CVK quick tips

Post by gobium » Sun Jun 18, 2017 5:31 pm


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SidecarDan
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Re: CVK quick tips

Post by SidecarDan » Sun Jun 18, 2017 10:02 pm

Very cool info for those of us that are just learning about carbs as we go, thanks Gobium.
Dan
2012 Forest Fog Gear-Up
128/42 jets
7/64ths drilled slides
2013 branch pipes
Yamaha petcock

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phliparoonie
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Re: CVK quick tips

Post by phliparoonie » Mon Jun 19, 2017 6:34 am

Most excellent, Van. Thanks. Going out to gap my throttle stops RIGHT NOW :-)
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2004 Tourist "Charlie" 25,036 km - 18/04/24
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Lmo
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Re: CVK quick tips

Post by Lmo » Mon Jun 19, 2017 10:17 am

++1 Van.
Lew Morris
Dnepr w/ '06 Ural Drive Train
C5 Power Arc
125/42 jets
Drilled slides/
.030" shims

1973 BMW R75/5 (original owner)
1947 HD FL (long gone, forever regretful)

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Lmo
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Re: CVK quick tips

Post by Lmo » Mon Jun 19, 2017 10:58 am

Van,

Assume throttle butterfly valves are completely closed (as in video) and mixture screws are set the same number of turn out (as close as possible)

How do you determine if idle mixture screw(s) is correctly adjusted?

When applying throttle...

What does "rich" sound like? ( stumble before increasing revs ? )

What does "lean" sound like? ( pop & spit ? )

edit... sometimes you just have to look a little bit further.
Anyways, unscrew them to 1 1/2 turns out. each one. Get out from under yer rig, start it up and give it a good rev on the throttle. [b]If there is a bit of hesitation before it revs up[/b], crawl under the rig and [what I do is] screw each one all the way back in and then come out 2 turns on each one. Don't burn yourself on stuff...

At some point the rig will rev up real nice and crisp. One way or the other and it bogs or starves. Write that number and the date on the garage wall above the workbench. When it gets cold out, you will do this again and the setting will be different. Write that number on the wall too. Next summer when the rig is running like crap, you'll look at the wall, crawl under the rig and set it perfectly in about a minute.
source: viewtopic.php?t=22908
Lew Morris
Dnepr w/ '06 Ural Drive Train
C5 Power Arc
125/42 jets
Drilled slides/
.030" shims

1973 BMW R75/5 (original owner)
1947 HD FL (long gone, forever regretful)

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