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Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit

Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235

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  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
  • Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit NCS235
Yamaha XS650 Mikuni VM34 34mm Carburetor Conversion Kit

Out of stock. Subscribe below for stock notification.


$399.95

Out of stock. Subscribe below for stock notification.

$399.95
SKU: NCS235
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Specific Fitment-Check Fitment details section

Description

Details

Brand new carburetor kit consisting of genuine left and right Mikuni 34mm carburetors, pre-jetted with proven specs utilizing genuine Mikuni components.

  • Pre-jetted carbs for stock to mildly modified engines. Left and Right side carburetors.
  • CNC machined bolt on flange adapters with perfectly mated rubber connectors and clamps
  • Stainless steel flange adapter allen bolts
  • 1-2 cable for use with the factory throttle assembly and some aftermarket units - 42" case length
  • Washable, oiled red element air filters. Very high quality - Made in the USA
  • Additional jetting included.  4 Sizes of mains, and 2 sizes of pilots
  • Flange adapter gaskets (not shown)

We don't just swap out the main and pilots.  Slide, needle jet, needle, main, and pilots have all been chosen for the best possible combination on the majority of bikes.  Because each bike is different, and because these are shipped all over the world, we cannot guarantee out of the box compatibility.  Climate, altitude, and engine setup all play into the fuel requirements that must be met.  We include the additional mains and pilots for such occasions.

Note: This kit does not have a provision for providing vacuum for the vacuum-operated petcock. The stock petcock can be replaced with a petcock not requiring vacuum. Some Yamaha vacuum operated petcocks have a position where the fuel will flow without vacuum. If your bike has this, the original petcock can be used, but this will bypass the reserve function of the petcock. It is also possible to tap a vacuum line into the manifold. 


Additional Information

Specification Details
SKU NCS235
Carburetor Size 34mm
Brand Niche Cycle Supply

Fitment Information

Yamaha Models

  • Yamaha XS1 Twin 650 1970 - 1971
  • Yamaha XS2 Street Twin 650 1972
  • Yamaha XS650 1975 - 1981
  • Yamaha XS650 Twin 1976
  • Yamaha XS650S Heritage 1982
  • Yamaha XS650S Heritage Special 1983
  • Yamaha XS650S Special 1978 - 1983
  • Yamaha XS650S2 Special II 1979

Customer Reviews

Write Review

great carbs

5
out of 5

By on 12/4/2018

Just unpacked the box. What a super quality kit.

Quality
Price
Value

Very good service

5
out of 5

By on 10/15/2018

Arrived in the Uk in double quick time, a quality complete kit of a famously good carb...

Quality
Price
Value

Great Product!

5
out of 5

By on 3/12/2015

I just wanted to drop a note saying how impressed I am with my Mikuni carbs that I purchased from you. I bolted them on and only made minor adjustments to the air mixture and idle, and my xs650 is running better than ever! The 2 into 1 throttle cable is great too. So easy to install. Thanks guys for a great product!

Value
Quality
Price

Questions & Answers

  • Can I purchase this XS650 carb kit without the air filters?
    Thanks
    Andy

    Yes, we can sell this kit without the filters, but the order will need to be placed by phone. Please give us a call for more details. 727-342-5601, or 1-888-792-0692

    Answer by: Web Support (Admin) on Jul 12, 2016 5:54:00 PM
  • What size is the balance port on the manifolds?

    M6x1.0

    Answer by: Web Support (Admin) on Apr 14, 2020 10:50:00 AM
  • This kit will be going on my stock 1983 xs650s, do I need to change my vacuum petcock?

    Our XS650 kit makes no provisions for a vacuum petcock, so it would be a good idea to change your petcock. If I remember correctly, the XS650 has a bypass on the stock petcock that allows fuel flow, whether or not there is vacuum. If the XS petcock has that function, you could always use that. But if you do, you would lose the reserve function on the petcock.

    Answer by: rick c (Admin) on Jun 20, 2019 10:44:00 AM
  • This comes fully assembled?

    The carburetors come pre-jetted for most applications and the throttle cable is fully assembled.

    Answer by: Web Support (Admin) on Apr 21, 2020 9:53:00 AM
Reviews

Customer Reviews

Write Review

great carbs

5
out of 5

By on 12/4/2018

Just unpacked the box. What a super quality kit.

Quality
Price
Value

Very good service

5
out of 5

By on 10/15/2018

Arrived in the Uk in double quick time, a quality complete kit of a famously good carb...

Quality
Price
Value

Great Product!

5
out of 5

By on 3/12/2015

I just wanted to drop a note saying how impressed I am with my Mikuni carbs that I purchased from you. I bolted them on and only made minor adjustments to the air mixture and idle, and my xs650 is running better than ever! The 2 into 1 throttle cable is great too. So easy to install. Thanks guys for a great product!

Value
Quality
Price

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Fitment Information

Fitment Information

Yamaha Models

  • Yamaha XS1 Twin 650 1970 - 1971
  • Yamaha XS2 Street Twin 650 1972
  • Yamaha XS650 1975 - 1981
  • Yamaha XS650 Twin 1976
  • Yamaha XS650S Heritage 1982
  • Yamaha XS650S Heritage Special 1983
  • Yamaha XS650S Special 1978 - 1983
  • Yamaha XS650S2 Special II 1979
Product Question

Product Questions

Question will be displayed after moderation.

Can I purchase this XS650 carb kit without the air filters?
Thanks
Andy
7
What size is the balance port on the manifolds?
0
This kit will be going on my stock 1983 xs650s, do I need to change my vacuum petcock?
-2
This comes fully assembled?
-6
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