New Ural pulls to right, tried everything, now what?

Woe unto you that bought the first model year of a major remake, perhaps this section can help address any 2014 and later model Ural "imperfections". Here's a special section for folks with the latest rigs to discuss 2014 and later model-related topics such fuel injection, 3-wheel disc brakes, hydraulic steering dampers, spin-on oil filters and other anomalies that don't belong on true Russsian motorcycle ;-P We've gone from using big hammers and greasy wrenches to needing computers and Ouija boards in order to fix our rigs.
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Please keep this section specific to issues pertaining to 2014 and later models such as fuel injection, sidecar and rear disc brakes and so forth. Ask general or non-2014 and later specific questions in the main Hammerin' & Wrenchin' section.
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pbrowne
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New Ural pulls to right, tried everything, now what?

Post by pbrowne » Mon Jun 03, 2019 12:36 pm

I'd like to ride the bike back to the dealer, but it's a handful with pulling to the right. I'm out of things to check. Can't find a trailer wide enough and may have to schedule a roll-back if I can't figure out something.

Here's what I've tried:

1. Checked sidecar driveshaft. U-joints were 90 deg. out of phase. Corrected this. Still no mitigation of pulling to right.

2. Tried many alignment changes -- up to 1 1/2" toe-in and 3 deg. lean-out. Settled on 1 deg lean-out and 5/8" toe-in. None of these changes had any effect on the pull to the right.

3. Found a problem with the sidecar brake dragging. Reservoir was overfilled, and I removed some fluid. Master cylinder was not retracting (broken spring?) an bled fluid and pushed pads off the sidecar rotor. Disconnected linkage.
Shepherdstown, WV USA
2018 Ural GearUp "Arwen'
Previously owned: Suzuki Burgman 650 with Texas Sidecar, BMW R1200RT, BMW F650GS, BMW K1200LT, Honda Nighthawk 750, Honda Hawk, Honda Pacific Coast

rivers
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Re: New Ural pulls to right, tried everything, now what?

Post by rivers » Mon Jun 03, 2019 12:40 pm

Low air pressure in sidecar tire???
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014 GU
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pbrowne
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Re: New Ural pulls to right, tried everything, now what?

Post by pbrowne » Mon Jun 03, 2019 3:23 pm

f-38, r-40, s/c-35
Shepherdstown, WV USA
2018 Ural GearUp "Arwen'
Previously owned: Suzuki Burgman 650 with Texas Sidecar, BMW R1200RT, BMW F650GS, BMW K1200LT, Honda Nighthawk 750, Honda Hawk, Honda Pacific Coast

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Re: New Ural pulls to right, tried everything, now what?

Post by xpatriot » Mon Jun 03, 2019 3:42 pm

If I had those issues, the last place I'd take is back to the dealer who obviously couldn't set the bike up correctly.
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Kaliram
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Re: New Ural pulls to right, tried everything, now what?

Post by Kaliram » Mon Jun 03, 2019 3:50 pm

Brake linkage rod at the master cylinder must have 1mm of free play, or else the brake pressure won’t be relieved when the brakes are released!
Current ride: 2019 Ural Gear Up, O.D. Green (“Jyoti”)
Blasts in the past: 2016 Ural Gear Up ("Shanti ")
2012 Ural Gear Up ("Tootles")
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Re: New Ural pulls to right, tried everything, now what?

Post by Mr Wazzock » Mon Jun 03, 2019 5:46 pm

pbrowne wrote:
Mon Jun 03, 2019 3:23 pm
f-38, r-40, s/c-35
IMO too high, F-28, R-38 - 40, S/C-28 (I like 26 if no passenger)
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Re: New Ural pulls to right, tried everything, now what?

Post by Mr Wazzock » Mon Jun 03, 2019 5:48 pm

PS: to be sure you could try taking the sidecar caliper completely off to eliminate it entirely.
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Desantnik-VDV
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Re: New Ural pulls to right, tried everything, now what?

Post by Desantnik-VDV » Sun Jun 16, 2019 6:32 pm

Are your front and rear wheels in straight line alignment?
Is your engine synced? :o
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1980 BMW R100RT (2nd Heart Donor for 1999 Deco for more HP)
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Re: New Ural pulls to right, tried everything, now what?

Post by pbrowne » Mon Jun 17, 2019 5:28 pm

No. The front of the rear wheel points 3/16" to the right measured against a straightedge along the front and rear tires.
Shepherdstown, WV USA
2018 Ural GearUp "Arwen'
Previously owned: Suzuki Burgman 650 with Texas Sidecar, BMW R1200RT, BMW F650GS, BMW K1200LT, Honda Nighthawk 750, Honda Hawk, Honda Pacific Coast

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Re: New Ural pulls to right, tried everything, now what?

Post by pbrowne » Tue Jun 18, 2019 10:22 am

There seems to no way to correct the rear wheel misalignment. I think that this misalignment causes the bike to pull to the right.
Shepherdstown, WV USA
2018 Ural GearUp "Arwen'
Previously owned: Suzuki Burgman 650 with Texas Sidecar, BMW R1200RT, BMW F650GS, BMW K1200LT, Honda Nighthawk 750, Honda Hawk, Honda Pacific Coast

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Kaliram
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Re: New Ural pulls to right, tried everything, now what?

Post by Kaliram » Tue Jun 18, 2019 10:56 am

No, the pusher wheel slightly out of line doesn’t cause the pull to the right. Many bikes made have this, including my 2016 GU. Many folks adjust the toe-in with the aligning bar snug against just the rear wheel, rather than against both front and rear wheel. And the toe-in that is needed can be a lot more than 1/2”. I’ve seen ones with 1 1/2”! Adjust it to what works.

And make sure that rod that activates the brake master cylinder has 1-2 mm of play in it, or else the brake fluid won’t be released back into the brake reservoir and the brakes will just lock up. (I’ve had it happen!)
Current ride: 2019 Ural Gear Up, O.D. Green (“Jyoti”)
Blasts in the past: 2016 Ural Gear Up ("Shanti ")
2012 Ural Gear Up ("Tootles")
2009 KLX250, 2009 KLR650, 2004 BMW R1150GSA, 1966 Honda 305 SuperHawk

“Your life comes with a lifetime guarantee.”

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Kaliram
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Re: New Ural pulls to right, tried everything, now what?

Post by Kaliram » Tue Jun 18, 2019 1:23 pm

Note: if you set the toe-in at 5/8” measured with the rod against both front and rear wheels, your actual toe-in, measuring with the rod against the Inside of the rear wheel and dangling a good half inch off the front wheel, will be minus 1/8” !!!
Current ride: 2019 Ural Gear Up, O.D. Green (“Jyoti”)
Blasts in the past: 2016 Ural Gear Up ("Shanti ")
2012 Ural Gear Up ("Tootles")
2009 KLX250, 2009 KLR650, 2004 BMW R1150GSA, 1966 Honda 305 SuperHawk

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treeman1942
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Re: New Ural pulls to right, tried everything, now what?

Post by treeman1942 » Wed Jun 19, 2019 8:59 am

My 2019 GU has always pulled slightly to the right. However, yesterday, I raised the sidecar tire pressure from 32 to 36 and it seemed to drive much straighter. Also, I now have 1100 miles on the rig and it drives much straighter and runs smoother than when new.
2019 Ural Gear Up, OD Green
1977 BMW R100/7 (original owner)
2014 Burgman 400/A
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Re: New Ural pulls to right, tried everything, now what?

Post by S 854 » Wed Jun 19, 2019 9:13 am

From waaaay out in left field: You don’t by any chance have 2WD engaged?
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treeman1942
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Re: New Ural pulls to right, tried everything, now what?

Post by treeman1942 » Wed Jun 19, 2019 9:45 am

A couple of weeks ago, I moved the 2 WD lever while greasing my GU, then forgot to disengage it. Wow, what a bad ride for about 3 miles before realizing what was wrong!
2019 Ural Gear Up, OD Green
1977 BMW R100/7 (original owner)
2014 Burgman 400/A
2008 Piaggio MP3250
Whizzer Motorbike

If there are no dogs in Heaven, then when I die I want to go where they went.
Will Rogers

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