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Mikuni Jet Needle
started by TrailRebel
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March 8th 2009 at 11:00 PM
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TrailRebel
Polaris Crash Test Dummy
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125 Posts 
Group: Members
Member Since: December 21st 2006
Location: Germantown/Tripoli, Wisconsin, USA
Current Sled: 03 Cross Country Special
2008-2009 Miles: 850
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I've been having a very hard time looking for a richer jet needle for my sled. I currently have this mikuni part number: 9DFH07-60. I contacted several dealers and got very little help. One place found "the next richer size" and sent me number: 9DFH10-57.
After further examination, the new needle (9DFH10-57) was indeed narrower, but was longer(by about one clip position). So it's leaner, right? If this isn't the right needle, which one is?
Thanks in advance for any help!
I like to ride. Even if you have a Doo/Yami/Cat/Poo, so be it. I bought my snowmobile to have fun, not to tell everyone mine is better than yours. My preference...POLARIS, BABY!
Willow Region Sportsmans Club- www.willowregionsportsmansclub.com/
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Site Supporter
Group: Site Supporters
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March 9th 2009 at 10:51 AM
[ Modified March 9th 2009 at 10:52 AM
]
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XLT96rider
Other sports play once a week, but this sport is with us every day.
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942 Posts 
Group: Members
Member Since: January 7th 2009
Location: Wausau, Wisconsin, USA
Current Sled: 1996 Polaris XLT Special
2008-2009 Miles: 1000+
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Did some checking and the new needle you have seems to be a leaner one. Even though it's longer, you can always adjust the clip position. With the longer needle, it'll take more throttle to open the main jet all the way.
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March 9th 2009 at 12:31 PM
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TrailRebel
Polaris Crash Test Dummy
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125 Posts
Group: Members
Member Since: December 21st 2006
Location: Germantown/Tripoli, Wisconsin, USA
Current Sled: 03 Cross Country Special
2008-2009 Miles: 850
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XLT96rider, where did you go to find out it was leaner? As of right now, the 9DFH07-60 is at it's richest position, and it seems like one more lower clip position would fix it. That tells me go to a richer needle, right? I saw a website with the polaris part numbers matched with the Mikuni part numbers, but what it doesn't tell you is what is leaner and richer...
I like to ride. Even if you have a Doo/Yami/Cat/Poo, so be it. I bought my snowmobile to have fun, not to tell everyone mine is better than yours. My preference...POLARIS, BABY!
Willow Region Sportsmans Club- www.willowregionsportsmansclub.com/
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March 9th 2009 at 12:49 PM
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XLT96rider
Other sports play once a week, but this sport is with us every day.
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942 Posts
Group: Members
Member Since: January 7th 2009
Location: Wausau, Wisconsin, USA
Current Sled: 1996 Polaris XLT Special
2008-2009 Miles: 1000+
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Sorry, I got mixed up...It is richer, not leaner...don't remember which website it was, I was in probably 20 different sites looking. Some of them had charts that listed lean to rich, top to bottom on chart. The "9" series is hard to find info on.
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