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How do I remove the choke tube from the carburetor of a 1986 Yamaha Virago 700

I am rebuilding the carbs on my virago and I can't see how to remove a tube that I assume is the choke tube underneath the diaphragm so that I can clean those jets. Where it looks like it should slide out it's just walled off

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 200 Answers

SOURCE: schematic diagram of a 1981 yamaha 750 virago carburetor

Should get a good view of it by downloding free manual at
carlsalter.com...good Luck to you friend...Tim

Posted on May 13, 2009

  • 2 Answers

SOURCE: setting float level on HSC40 Hitachi carburetors on 1986 Virago

I have a 1982 Virago 750 that I just did a carb rebuild to. To set the float levels I built a jig from wood that simulates the position of the carbs when mounted on the bike. This jig clamps into my bench vise. I created a fuel supply using a small funnel and a piece of fuel hose mounted above the level of the carbs.. After that all you need is a short length of transparent fuel hose to attach to the drain on the bottom of the float bowl to provide the visual indication of the float setting. Now you are ready to set up the float levels on your bench. This is way easier than trying to set them up in the bike.

Make sure that the jig is set up so that the carbs sit as level as possible across the pair and that they sit as close to the natural position in the bike in the lengthwise position when the bike is sitting level.

The process of setting up these floats can be very tedious, be patient. It may require that the float bowls be removed multiple times to get it correct (I replaced the philips head machine screws with allen head screws to make this easier). Printed instructions for the procedure look for a certain fuel level setting plus or minus 1mm. This kind of tolerance can be quite difficult to get when the only adjustment you have to work with is to bend the metal tang on the float assembly.


Posted on Jul 09, 2009

Mr BrokRench
  • 1623 Answers

SOURCE: needle n seat adjustment yamaha virago 920

Hello dnjvp...The Hitachi HSC 40mm carbs on the 920 can be jetted and modded as needed to give you the right mixture for any engine or exhaust modifications.
Here is the breakdown for the slide and the internal parts. Check the needle for wear, clean all parts and put back together. Make sure you hold the diaphragm up to the light and check for pinholes. If any are found use a sealer like to fix.

picture3.gif
Good luck...i hope this helps.

Posted on Jul 29, 2009

Adrian762
  • 425 Answers

SOURCE: I need carburetor tuning instructions for a 1986

Check the free manuals at this site, one of them may have what you want.

http://www.carlsalter.com/motorcycle-manuals.asp

Posted on Dec 31, 2009

  • 1 Answer

SOURCE: Thank you.I have a 1993

Have you tested the throttle cable is working?

Posted on Aug 10, 2010

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Setting float level on HSC40 Hitachi carburetors on 1986 Virago


I have a 1982 Virago 750 that I just did a carb rebuild to. To set the float levels I built a jig from wood that simulates the position of the carbs when mounted on the bike. This jig clamps into my bench vise. I created a fuel supply using a small funnel and a piece of fuel hose mounted above the level of the carbs.. After that all you need is a short length of transparent fuel hose to attach to the drain on the bottom of the float bowl to provide the visual indication of the float setting. Now you are ready to set up the float levels on your bench. This is way easier than trying to set them up in the bike.

Make sure that the jig is set up so that the carbs sit as level as possible across the pair and that they sit as close to the natural position in the bike in the lengthwise position when the bike is sitting level.

The process of setting up these floats can be very tedious, be patient. It may require that the float bowls be removed multiple times to get it correct (I replaced the philips head machine screws with allen head screws to make this easier). Printed instructions for the procedure look for a certain fuel level setting plus or minus 1mm. This kind of tolerance can be quite difficult to get when the only adjustment you have to work with is to bend the metal tang on the float assembly.


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