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Carburetors Needles

PostAuthor: Iron_Angel » Thu Feb 28, 2019 11:55 pm

Hello all.
Can anyone cay me what kind of needles are in the carburetors of XV400? I didn't find any information about this. Are they same as in xv 535? If anyone know what figures are on them let me pleese know.
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Re: Carburetors Needles

PostAuthor: bstig60 » Fri Mar 01, 2019 10:20 am

If you don't already have one, you need to get a service manual for your bike. The service manual should tell you what needle jet(s) are installed stock.. They will doubtfully be the same as the 535.
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Re: Carburetors Needles

PostAuthor: Iron_Angel » Sun Mar 03, 2019 7:42 am

It is easy say than make. I can't find manual for xv400.I would be happy even it is Japanese one. But unfortunately I can't find any.
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Re: Carburetors Needles

PostAuthor: bstig60 » Sun Mar 03, 2019 10:06 am

There are some available in Russian on several sites. I would recommend using the 535 manual as the bikes are very similar. Carbs are 34mm Mikuni's on both models. Jetting for the 400 may be different...
'
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province and Country. It is easier to help you if we know where you are.

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Re: Carburetors Needles

PostAuthor: Iron_Angel » Sun Mar 03, 2019 8:06 pm

I know what kind of jetting is using on the xv400. I know that needles of xv400 are different from needles of xv535. But I can't finde any information about needles of xv400. I need the figures that are contaned on the needles for XV400.
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Re: Carburetors Needles

PostAuthor: bstig60 » Mon Mar 04, 2019 10:37 am

Then you are going to have to source a XV400 service manual. Try contacting Yamaha direct and see if they can get you the info you need.

Also, please edit your profile to show your location as it makes it much easier for us to help you.
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province and Country. It is easier to help you if we know where you are.

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http://viragotechforum.com/viewtopic.php?f=220&t=31501#p279545

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Re: Carburetors Needles

PostAuthor: Flyingdog » Tue Mar 05, 2019 2:43 am

bstig60 wrote:Also, please edit your profile to show your location as it makes it much easier for us to help you.

-------------- :yup:-------

If over there, maybe they could help---> https://www.wemoto.com/bikes/yamaha/xv_ ... apan/91-94
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Re: Carburetors Needles

PostAuthor: Iron_Angel » Tue Mar 05, 2019 9:13 pm

Done. But I think it is not help really much here. :bg:
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Re: Carburetors Needles

PostAuthor: bstig60 » Wed Mar 06, 2019 11:43 am

Iron_Angel wrote:Done. But I think it is not help really much here. :bg:

Thank you for showing your location. That makes it easier for us to know what models were available and makes it easier for us to help.
The XV 400 was only sold in Japan from 87-94. They do not list an 88 model year, BTW. It may have been imported to other countries, but it was never sold in the US, so we don't have a lot of data available. I do know the carbs were Mikuni BDS34's which is the same as the 535. Possibly the needles are the same, the only way to find out is to pull the carbs and check the number on the main and needle jets. The main jet in 88 was 135 on both carbs, the needle 5DZ7 front, 5DZ8 rear. Clip position 1 on both carbs.
Your other choice is to contact Mikuni and see if they can tell you what jetting was used on your model and year bike. Hope this helps..
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province and Country. It is easier to help you if we know where you are.

SERVICE MANUAL DOWNLOAD LINK
http://viragotechforum.com/viewtopic.php?f=220&t=31501#p279545

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Re: Carburetors Needles

PostAuthor: Jake » Wed Mar 06, 2019 11:45 am

The XV400 was sold in Europe and Oceania as well as Japan. If my info is accurate, it was also sold in the US briefly.

Edit: My data base appears to inaccurate in regards to some models, the XV400 is one that I question. It lists the XV400 as being sold in the US market from 1987, '88, '89, '91 and '92. The frame numbers indicate that 3000 to 4000 were sold in each year.

The reason I believe the info to be in error is because the same data base lists the '82 and '83 as being sold in the US, when in fact it was sold in Japan and Oceana and not the US. The '82 and '83 1st Gen XV400 was a monoshock and aside from engine displacement and color choice, was the same as the XV500.

Some XV400s asked about here may be those early models and not later years as some think, that why photos help a lot. Why do I say that ? Well, some countries will assign a year to the import papers the year it was imported to the country instead of the year of manufacture, therefore ( and I've seen explained on VTF by European members ) what someone thinks they own and what they actually own can be different.
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Re: Carburetors Needles

PostAuthor: Jake » Wed Mar 06, 2019 1:07 pm

See my edited comment above.
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It’s what you know for sure that just ain’t so.”

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There is an old Chinese proverb - "Man with one watch knows the time. Man with two, not sure."
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Re: Carburetors Needles

PostAuthor: Flyingdog » Wed Mar 06, 2019 2:57 pm

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Re: Carburetors Needles

PostAuthor: Iron_Angel » Wed Mar 13, 2019 9:41 pm

bstig60 wrote:
Iron_Angel wrote:Done. But I think it is not help really much here. :bg:

Thank you for showing your location. That makes it easier for us to know what models were available and makes it easier for us to help.
The XV 400 was only sold in Japan from 87-94. They do not list an 88 model year, BTW. It may have been imported to other countries, but it was never sold in the US, so we don't have a lot of data available. I do know the carbs were Mikuni BDS34's which is the same as the 535. Possibly the needles are the same, the only way to find out is to pull the carbs and check the number on the main and needle jets. The main jet in 88 was 135 on both carbs, the needle 5DZ7 front, 5DZ8 rear. Clip position 1 on both carbs.
Your other choice is to contact Mikuni and see if they can tell you what jetting was used on your model and year bike. Hope this helps..


Thank you for your information. I have needles are marked with 5DZ9 and 5DZ10. So I think these needles are for XV 400. The two others are marked 5DL20 and 5DL21 they absolutely differ in shape from 5DZ. But they were in BSD 34 carburators that I got as spare parts from privious owner.
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