2013 Patrol - Carb Jets

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2013 Patrol - Carb Jets

Postby :FI:Igor » Sun Jan 26, 2014 11:53 am

I've been reviewing several articles on changing the carb jets. I get the impression that it's standard practice to go to 130 main and 45 idle. Due to EPA requirements, new machines run lean, not the optimum set up for air cooled engines. I plan to change the jets during the 2500km PM (or at least have the jets on hand). Also the 2013's don't need shims because the needle is shorter?

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Re: 2013 Patrol - Carb Jets

Postby Coluralado » Sun Jan 26, 2014 12:11 pm

You are correct on the needles being modified all ready and no shims required.

Not sure about "standard practice" with 130/45 jets. Because you are at or near sea level, you will probably have to rejet both mains and idle jets for best performance. However, there is a process in doing the rejetting. Probably would be best to follow the process.

One thing you didn't mention.....are you running stock airbox and stock exhaust?
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Re: 2013 Patrol - Carb Jets

Postby :FI:Igor » Sun Jan 26, 2014 1:49 pm

My machine is stock. Plan to eventually go with a K&M air filter. Our altitude is 400 ft MSL. Haven't pulled the plugs yet to verify color. With only 1000 km, not quite broke in. Starts on first kick, warm up one minute, ride, a few pops first 500 m.

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Postby berger » Sun Jan 26, 2014 2:12 pm

If you are stock, 130/45 is to rich...even for the KN. Verify what you have now first. I only went 130/45 with an open exhaust and KN.

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Re: 2013 Patrol - Carb Jets

Postby rivers » Sun Jan 26, 2014 2:45 pm

130/45 sounds pretty rich for stock to me. My 011 came with 126(?)/38 and 2 shims and it's fine for bone stock. Don't get hung up on what every body else is running especially if yours is running good as is. Folks pick their jetting mods according to individual needs(real or perceived). I'd suggest finding out for sure what you've got now, then experiment going one size at a time up or down, test thoroughly, change as needed.
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Re: 2013 Patrol - Carb Jets

Postby Lokiboy » Sun Jan 26, 2014 3:23 pm

As Coluralado said, there is a process. Don't wing it, figure out what you need to do.
2011 Gear Up - "Erika"
Yorktown, VA

Mains: 122, Idle: 40, Needle: 1 shim
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Re: 2013 Patrol - Carb Jets

Postby :FI:Igor » Sun Jan 26, 2014 3:29 pm

I don't know the present jet setting. I best hold off on any changes as the machine is running pretty good. Still not broke in. Thanks for information.

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Re: 2013 Patrol - Carb Jets

Postby Leftka » Sun Jan 26, 2014 4:24 pm

Not broken in doesn't mean you can't rejet, but you can't just pick numbers out of the blue either. Many of us have modded the airbox and/or exhaust and rejetting is a process that includes a plug chop and is very specific to mods...
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Re: 2013 Patrol - Carb Jets

Postby Coluralado » Sun Jan 26, 2014 4:58 pm

Part of the process is to get the idle jets correct 1st. Once you have them settled in, then you can work on the mains. Plenty of info posted about this.
"Put a little gravel in your travel"

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Re: 2013 Patrol - Carb Jets

Postby flying eyeball » Sun Jan 26, 2014 5:01 pm

op,

Watch this video colouralaado has done for you.

http://www.youtube.com/watch?v=Fjr9PvyzbG4

pull your jets and see what you have.

pull your plugs and post a picture and these guys will steer you in the right direction.

good luck!
Josh

'05 Patrol
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Postby berger » Sun Jan 26, 2014 9:06 pm

Look at signature of SS member, then look at year of bike and when bought it...then look at that members opinion. If you can get the connection between those two variables, you might learn a few things.

Post count is not a sign of Ural knowledge on its own.

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Re: 2013 Patrol - Carb Jets

Postby YVR Gear Up » Tue Jan 28, 2014 10:15 am

I live at around sea level like you. My 2013 Gear Up is completely stock. At around 200 kms I changed out my stock 122 main jet to 125 , drilled the sliders 7/64 and added 2 shims to each side. I left my stock 40 pilot alone. ( 40 pilot , 125 main, 2 shims on each carb & 7/64 drilled sliders ) ran the best for my bike. Checked the spark plugs last week at 1100 KMS and it was perfect. I would check your stock jets before you order . Even if same year they can be a size or two off. :)
Miin

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Re: 2013 Patrol - Carb Jets

Postby Peter Pan » Sat Feb 01, 2014 12:23 am

I better introduce myself first as this is my first post on this Forum.
My name is Sven Peter and I live for 25 years in Costa Rica, 10°N,84°W at about 1350m = 4420feet above sea level.
Active member of USCA at sidecar.com from where I was sent to here for the Ural specific questions I have.

My Ural Patrol named "Sophie Travelair" is now my 3rd rig and 10th bike in 32 years.
I got Sophie in July2013 in Salem Oregon, went with her and my son up to Alaska Arctic circle and back.
http://sidecar.com/mbbs22/forums/thread ... 80&start=1

Since 10 days ago I have her finally road legal in Costa Rica. (12.500km and the engine is still not free although I run on mineral oil)
Until today I wasn't happy with the jeting at all. As she ran nearly always way too fat (with original needle she nearly died on Mount Hood, Oregon due to overheating...spark plugs were white as brand new.)
I determined that Pilot jets are #65 and main jets #125. After mechanically syncronizing, opening the air screw to 2 turns , droping the 6 slot needle from Raceway to the 4th slot and changing to Super 95 octane, the behaviour improoved quite a bit.
Today I pushed her out of town up into the mountains until 2300 or 2400m = 7500 or 7860 feet on pretty steep roads and cold weather 18°C = 65°F and felt her finally runing better.
Cilinder head temps were in all conditions sane and still reasonably low. typically 130 to 165°C=265 to 330°F. For now I guess I am pretty OK, but above in the thread was mentioned a process for to adjust the carbs in the right manner.
Does anybody have a link to a good explaination of the process as in 32 years I never had to fool around with carb jets?

Our typical riding range is 400m-3300m =1300-10.800feet above sea level and temperatures are generally between 15 and 32°C = 60 to 90°F
If You think I am kidding, come down to ride and sweat here. I can give you good road hints.
Best regards from a cold front in the middle of our summer.
Sven Peter
Sophie Travelair
Patrol 2013 with quite a few add-ons from Jim Petitti that definetely have made improovements to the rig
....and lowered the doctors bills.
8 weeks 12.000km Oregon - Alaska - Oregon
Rainy season give a tough time to the original air filter box, cough, cough.
Jolly Roger 2 is still in the process of adapting a 450 Husquarna engine into the Jawa rig.

The Avatar are 2 rice grains stating life's essence:
"The most important you cannot see!"
=> Attitude makes the difference!
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Re: 2013 Patrol - Carb Jets

Postby Leftka » Sat Feb 01, 2014 12:51 am

Peter Pan wrote:I better introduce myself first as this is my first post on this Forum.
My name is Sven Peter and I live for 25 years in Costa Rica, 10°N,84°W at about 1350m = 4420feet above sea level.
Active member of USCA at sidecar.com from where I was sent to here for the Ural specific questions I have.

My Ural Patrol named "Sophie Travelair" is now my 3rd rig and 10th bike in 32 years.
I got Sophie in July2013 in Salem Oregon, went with her and my son up to Alaska Arctic circle and back.
http://sidecar.com/mbbs22/forums/thread ... 80&start=1

Since 10 days ago I have her finally road legal in Costa Rica. (12.500km and the engine is still not free although I run on mineral oil)
Until today I wasn't happy with the jeting at all. As she ran nearly always way too fat (with original needle she nearly died on Mount Hood, Oregon due to overheating...spark plugs were white as brand new.)
I determined that Pilot jets are #65 and main jets #125. After mechanically syncronizing, opening the air screw to 2 turns , droping the 6 slot needle from Raceway to the 4th slot and changing to Super 95 octane, the behaviour improoved quite a bit.
Today I pushed her out of town up into the mountains until 2300 or 2400m = 7500 or 7860 feet on pretty steep roads and cold weather 18°C = 65°F and felt her finally runing better.
Cilinder head temps were in all conditions sane and still reasonably low. typically 130 to 165°C=265 to 330°F. For now I guess I am pretty OK, but above in the thread was mentioned a process for to adjust the carbs in the right manner.
Does anybody have a link to a good explaination of the process as in 32 years I never had to fool around with carb jets?

Our typical riding range is 400m-3300m =1300-10.800feet above sea level and temperatures are generally between 15 and 32°C = 60 to 90°F
If You think I am kidding, come down to ride and sweat here. I can give you good road hints.
Best regards from a cold front in the middle of our summer.
Sven Peter

Your pilot jets are not 65's...those are your stater jets and should be left alone...your idle jets are not visible...the are located up inside a small tube next to your main jets. See http://www.myural.com for detailed pictures on the carbs. Also there is a pist here in hammer and wrenchin' called best of and how to that will walk you through the carb tuning process viewtopic.php?f=5&t=28897
Leftka
Naples, FL
2012 Red Tourist, Ursula
128/40 Jets
Harmonized at 10" hg
Dynojet DNO106 Needles, 3rd Notch From Bottom
Leftka 3, ALLuminum Custom Airbox
K & N MG 200 Filter Element
7/64" Drilled Carb Slides
Power Arc Ignition with VOES Advance/Retard
Mod Top Mufflers on Stock Headers
Parabellum Scout Fairing
Left Hand Throttle, Front Brake and Clutch

Image
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Re: 2013 Patrol - Carb Jets

Postby Peter Pan » Sun Feb 02, 2014 1:32 am

Thank You very much Leftka, about these information sources.
Your gas milage of 33mpg causes me a wide open mouth.
I passed 12.000km in USA and Canada with generally something between 19 and 23 miles per galon (partially intentional)
Only until today I got a record of 28,3 mpg (8,35l/100km).
The mecanical sincronisation must have helped quite a bit.
So I will tweek slowly but steadily after tomorrows elections day.
Best wishes
Sven
Sophie Travelair
Patrol 2013 with quite a few add-ons from Jim Petitti that definetely have made improovements to the rig
....and lowered the doctors bills.
8 weeks 12.000km Oregon - Alaska - Oregon
Rainy season give a tough time to the original air filter box, cough, cough.
Jolly Roger 2 is still in the process of adapting a 450 Husquarna engine into the Jawa rig.

The Avatar are 2 rice grains stating life's essence:
"The most important you cannot see!"
=> Attitude makes the difference!
User avatar
Peter Pan
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