Jets is jets?


6 replies to this topic
  • kehale

Posted November 09, 2005 - 08:25 PM

#1

I have some Keihin jets (from K&N) for my stock bombardier DS 650.

They are 165, 170, 175, 180, 185, 190, 195 and 200.

Are these the same as the XR650R carb jets?

Is there a difference between jet brands?:applause: (these may be genuine Keihin, though)

-T

  • jimXR650L

Posted November 09, 2005 - 11:11 PM

#2

kehale, I've heard of Keihin jet numbers: 52 &55 also.

  • jimXR650L

Posted November 09, 2005 - 11:13 PM

#3

I'm pretty sure that the Dyno-Jet numbers and the Keihin numbers are slightly different, as well.

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  • kehale

Posted November 10, 2005 - 12:26 AM

#4

Well, I was just trying to save buying more jets.

Not a big deal. I'll keep em separate so I don't get confused.
They look the same to me. :applause:

  • Shawn_Mc

Posted November 10, 2005 - 08:44 AM

#5

Most of th main jets are the same. If they look the same, they're the same.

Keihin is pretty good about when a jet is different, its really different.

Dyno Jet jets are numbered like Mikuni jets. Which is way different. Dyno jet should make a cross reference if youve got Dyno jets that replace Keihin jets.

This is purely an example:

Dyno jet 345 could be the same as a Keihin 165...again, just an example

The 50-52-55 sizes are usually pilot jets or air jets or possiblely even leak jets for the accelorator pumps. But the physical charateristics are going to play a giant part of how they fit.

If you pull up the keihin jet page on Sudco.com they've got pictures of the jets so you can match up what you have and see whats available...

  • kehale

Posted November 10, 2005 - 09:03 AM

#6

Most of th main jets are the same. If they look the same, they're the same.

Keihin is pretty good about when a jet is different, its really different.

Dyno Jet jets are numbered like Mikuni jets. Which is way different. Dyno jet should make a cross reference if youve got Dyno jets that replace Keihin jets.

This is purely an example:

Dyno jet 345 could be the same as a Keihin 165...again, just an example

The 50-52-55 sizes are usually pilot jets or air jets or possiblely even leak jets for the accelorator pumps. But the physical charateristics are going to play a giant part of how they fit.

If you pull up the keihin jet page on Sudco.com they've got pictures of the jets so you can match up what you have and see whats available...



Great info, thanks!

  • J_Daniels

Posted November 10, 2005 - 10:51 PM

#7

I always kinda wondered what the comparable Kehin jet is to a Mikuni jet. They both screw in the same, but the numbering is different. I have a TON of Mikunis, but very few Kehins. Had to play with jetting on my old XT500, seems like a Mikuni 300 is about the same as a Kehin 180. Anyone dealt with this?





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