one cylinder

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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Re: one cylinder

Post by AndyH » Sun Dec 29, 2019 3:58 pm

rivers wrote:
Sun Dec 29, 2019 2:24 pm
Cold cyl, I'd investigate that sides ignition system. Start at the plug and work upstream.
Sounds like a good plan.
I had a similar experience a year or so ago that took several days to fix - As RC20 you need to check everything eventually.
With mine, it was possible that I had kicked the plug lead at some stage - everything else was symptomatic and related to the weather in some form or other even the very grey FD oil (main oil and tranny were fine though).

Has been, in my limited experience with Urals, that any problem always highlights other deficiencies you never knew you had :)
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Re: one cylinder

Post by idaho270 » Sun Dec 29, 2019 9:59 pm

i went out this afternoon and started it.. took a couple of tries but she turned over and i was idling shut her off and even kick started her a couple of times still seems to fire off. i have new coils on order with wires

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Re: one cylinder

Post by Mr Wazzock » Mon Dec 30, 2019 1:31 pm

idaho270 wrote:
Sun Dec 29, 2019 1:55 pm
i have 12vdc at plugs with key in
Image

.. as infers there is continuity thru secondary to primary, and thence to ignition + Volts – which I kinda guessed there should be, if the coils are "normally" configured.
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Re: one cylinder

Post by Mr Wazzock » Mon Dec 30, 2019 1:37 pm

idaho270 wrote:
Sun Dec 29, 2019 9:59 pm
still seems to fire off. i have new coils on order with wires
2015 Gear Up, possible the originals are scrap, as mine were (as I described earlier)
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Re: one cylinder

Post by idaho270 » Mon Dec 30, 2019 1:54 pm

i disconnected the main connector for the ECU and cleaned it with contact cleaner. pulled off air hoses and cleaned the gunk out of that was able to start bike with out left throttle on but was able to see puff of gas so i assume ecu is okay.
12vdc at plug end with key on.
tried making sure plug wire connected to coil mates up but not sure wriggle test still has 12vdc at plug
this morning started up it was about 44 degrees out

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Re: one cylinder

Post by Mr Wazzock » Mon Dec 30, 2019 2:05 pm

idaho270 wrote:
Mon Dec 30, 2019 1:54 pm
i disconnected the main connector for the ECU and cleaned it with contact cleaner. pulled off air hoses and cleaned the gunk out of that was able to start bike with out left throttle on but was able to see puff of gas so i assume ecu is okay.
Can you try to get a spark at the plug? I'm sure you can put it (or a spare) on the outside of the head to see it. Only requirement is it must be in contact with the head, and the plug cap connected, so it sparks normally. Electronics may be damaged if HT wire is open-circuit.
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Re: one cylinder

Post by idaho270 » Mon Dec 30, 2019 2:52 pm

will try that again tonite when I get home from work ..
tx

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Re: one cylinder

Post by idaho270 » Fri Jan 03, 2020 7:25 pm

got new spark plug wire and coil replaced
started up fine went out on ride for about 40 miles no issues
stopped a couple times and kick started both times one try

thanks for all the tips

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Re: one cylinder

Post by Mr Wazzock » Sat Jan 04, 2020 4:02 pm

OK!
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Re: one cylinder

Post by idaho270 » Mon Jan 06, 2020 8:50 pm

Re: one cylinder
Well i guess i got a little greedy. rode the bike on the weekend rode for about 40 miles no problem in the rain and all. got new spark plug wire and coil replaced
started up fine went out on ride for about 40 miles no issues
stopped a couple times and kick started both times one try

drove to work and i had it covered all day... it rained all day here started up and headed home lost power and had to limp home it would accelerate and then decelarate on its own will try to dry it off and start again
david
i live on the oregon coast and take it towork at least 17 18 miles one way so have done a lot of riding in coastal downpours

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Re: one cylinder

Post by Donbmw » Mon Jan 06, 2020 11:28 pm

Moisture in your throttle body. Had this happen to me after 3 days of rain riding and a week later the right throttle body started cutting out then quit. Installed new throttle body. Took the bad one apart and found a lot of milky crud all over the circuit board.
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Re: one cylinder

Post by Mr Wazzock » Tue Jan 07, 2020 4:33 pm

Could be! This has happened to the early version ECU's?
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Re: one cylinder

Post by idaho270 » Tue Jan 07, 2020 8:32 pm

i replaced throttle body ecu
have spark starts up and idles sort of high
raining out took off for ride and rides ok but my idle seems awful high kick starts easy

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Re: one cylinder

Post by cookiemech » Wed Jan 08, 2020 8:12 am

Did you synchronize throttle bodies and set idle to 1080 rpm or so? Not doing that will cause idle to hang up.
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Re: one cylinder

Post by Mr Wazzock » Wed Jan 08, 2020 12:39 pm

Ural Motorcycles Technical Bulletin
Date: 2/11/15
Bulletin #: S012015
Topic: EFI High/Hanging Idle Issues
Models Included: All 2014-2015 EFI models

This technical bulletin has been issued to address recent feedback concerning EFI performance
after installation of the off road calibration (URAL_XXOR_01.01) on new motorcycles during
assembly and/or PDI.
If you are experiencing problems with:
 High idle
 Hanging idle after revving the engine
 Slow return to idle

Check the following adjustments:
 ECU’s have been successfully reprogrammed with (URAL_XXOR_01.01)
 All DTC’s and learned parameters have been cleared
 Idle speed set between 1050-1100rpm (warm engine 120c-140c)
 Synchronized throttle blades at idle (idle adjustment screws)
 Synchronized throttle blades at 2000-3000rpm (cable adjustment)
 Throttle cables are free and clear
 LH throttle body is not touching the starter
 Motorcycle has been test ridden

If these steps do not correct the problem addition repairs may be necessary, please contact
Jason Rae for further instruction and support.

If you have any questions regarding this service bulletin please contact Jason Rae in the
warranty department at Jason@imz-ural.com or by phone at 425-702-8484 ext.105
Mike H
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(aka Oranzhevaya Opasnost, "The Orange Peril")

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