Fine tuning alignment question

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
Hero of the Soviet Union - 2019
Hero of the Soviet Union - 2019
Posts: 66
Joined: Wed May 08, 2019 9:45 am

Fine tuning alignment question

Post by pbrowne » Thu Sep 05, 2019 5:31 pm

I seem to now have my rig going more or less straight. it had been pulling badly to the right when I first got it. It still pulls to the right a bit more than I think it should.

I've noticed that, at say 40 mph under power, it pulls to the right; but, if I pull in the clutch, it runs perfectly straight. Is this normal? I'm not sure why moderate, throttle just maintaining 40 mph on a flat road, should be causing a 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

MonkeysUncle
Hero of the Soviet Union - 2019
Hero of the Soviet Union - 2019
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Location: Albuquerque NM

Re: Fine tuning alignment question

Post by MonkeysUncle » Thu Sep 05, 2019 6:17 pm

When you're coasting the bike and sidecar both have the same inertia. When you add enough throttle to maintain speed the car is being dragged forward by the bike. This drag causes the whole thing to want to track to the right a little, that is unless you are Mr Wazzock.
2008 KLR650
2013 GearUp

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Snakeoil
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Re: Fine tuning alignment question

Post by Snakeoil » Thu Sep 05, 2019 6:25 pm

You are reaching the point where you can tune it further to your liking or leave it be. Mine runs pretty neutral with the hack empty. The throttle up or down is always going to have an effect. The more you ride the rig the less noticeable it will be because you will automatically compensate for it. The brain does some amazing things.

If you have a windshield on the hack, lower it and it may stop pulling. My neutral handling is with my hack windshield down.
Regards,
Rob
Proud member of the Peanut Gallery
2000 Ural Tourist
40 Pilots, 122 Mains
Before you say something stupid, always ask yourself, "What would Harpo say?".

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windmill
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Re: Fine tuning alignment question

Post by windmill » Thu Sep 05, 2019 9:27 pm

A rig will never track straight and neutral under all circumstances, it's subject to constantly changing dynamics. When all is said and done it's a matter of getting used to it.
Eventually one learns to use it to their advantage.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018 M70

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:FI:Igor
Hero of the Soviet Union - 2019
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Re: Fine tuning alignment question

Post by :FI:Igor » Fri Sep 06, 2019 6:56 am

I use a four lane road to verify my alignment. Right lane slight drift to the right, left lane, slight drift to the left.
2015 Ural Patrol (Светлана)
2006 HD Low Rider (sold)
2013 Ural Patrol 'Ursula' (2015 Totaled!)

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pbrowne
Hero of the Soviet Union - 2019
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Joined: Wed May 08, 2019 9:45 am

Re: Fine tuning alignment question

Post by pbrowne » Fri Sep 06, 2019 9:22 am

I guess that this is part of learning to live with a Ural! I had a 2011 Suzuki Burgman 650 to which I added a Texas sidecar. After much setup trial and error in my learning about sidecars, it was a beautiful handling rig. Automatic, electronic cruise control etc., etc. Great except that the tranny constantly leaked and I finally sold it in 2016.
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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Desantnik-VDV
Hero of the Soviet Union - 2019
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Re: Fine tuning alignment question

Post by Desantnik-VDV » Fri Sep 06, 2019 4:19 pm

It is normal.
If it was a symmetric trike it would've been tracing straight with totally different dynamics. With the current asymmetry and where the sidecar wheel is located (wheel lead), with any different load (Driver, Passenger, etc.), sidecar weight....there will always be major difference in pulling and pushing forces involved. Every given aspect will change the dynamics of the outfit even on flat road with no crown.
Alex
2007 GearUp NOS

The rest is just a History:
2014 Ural M70
1998 Honda f6 GL 1500 Valkyrie Tourer /Champion Escort sidecar
1999 Ural Deco Classic/BMW R100 engine
1980 BMW R100RT (2nd Heart Donor for 1999 Deco for more HP)
1983 BMW R80/7 (1st Heart Donor for 1999 Deco)
2002 Ural Barberian Classic
2003 Honda Shadow ACE
1999 Ural BC (went to US circus in Tokyo to adapt a bear driver)

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