Ignition filter

Are ya having a problem with your rig? We'll try to help. Share your tech tips and experiences here. Dr. Billy Glaser, author of the "Unofficial 750 Ural Service Manual" site myural.com, is moderating this section.
Forum rules
Here is the place for you to ask questions about or share your experiences about servicing or repairing your Ural or Dnepr. Please post topics concering modifications or accesories in the "Modifications and Acessories" section. Please post oil related questions in the "Oil Threads" section.
User avatar
Lmo
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 5379
Joined: Wed Jun 10, 2015 3:19 pm
Location: Pismo Beach via So. Indiana

Ignition filter

Post by Lmo » Tue Jul 07, 2020 4:02 pm

Whadda ya think?

Image
Lew Morris
Dnepr w/ '06 Ural Drive Train
C5 Power Arc
125/42 jets
Drilled slides/
.030" shims

1973 BMW R75/5 (original owner)
1947 HD FL (long gone, forever regretful)

User avatar
ReCycled
Order of Lenin
Order of Lenin
Posts: 2449
Joined: Thu Dec 20, 2007 12:10 am
Location: Broomall, PA

Re: Ignition filter

Post by ReCycled » Tue Jul 07, 2020 4:59 pm

Clean power is important on such a high tech device.
David B.
'07 Ural Twourist

User avatar
harryball
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 1680
Joined: Mon Oct 12, 2015 10:53 am
Location: Georgia
Contact:

Re: Ignition filter

Post by harryball » Tue Jul 07, 2020 5:07 pm

That's the dumbest thing I've seen, everyone knows you should not use a see through filter! The act of observing the electrons flow makes them unpredictable.
---
2017 - cT - "Georgia" My wife's rig.
2017 - M70/Retro, Sigmund. My wife's other rig.
Robert
http://HabitatForBats.org - Give a bat a home!

User avatar
Snakeoil
Order of Suvarov
Order of Suvarov
Posts: 4788
Joined: Sat Nov 29, 2014 9:45 pm
Location: Upstate NY

Re: Ignition filter

Post by Snakeoil » Tue Jul 07, 2020 5:21 pm

I believe that Lucas tried a similar device. They later determined that it was better to put a diode in the fuel line. Same effect for less cost.
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?".

User avatar
Lmo
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 5379
Joined: Wed Jun 10, 2015 3:19 pm
Location: Pismo Beach via So. Indiana

Re: Ignition filter

Post by Lmo » Tue Jul 07, 2020 5:50 pm

The act of observing the electrons flow makes them unpredictable.
Electricity bugs can be that way.
Lew Morris
Dnepr w/ '06 Ural Drive Train
C5 Power Arc
125/42 jets
Drilled slides/
.030" shims

1973 BMW R75/5 (original owner)
1947 HD FL (long gone, forever regretful)

User avatar
Desantnik-VDV
Comrade General
Comrade General
Posts: 948
Joined: Sun Dec 16, 2007 5:21 pm
Location: Los Angeles

Re: Ignition filter

Post by Desantnik-VDV » Tue Jul 07, 2020 6:51 pm

It's exclusively dealer serviceable system. You killed two rabbits with a single shot. :D
Alex
2007 GearUp - BMD (Боевая Машина Десанта)

The rest is just history.

User avatar
Lofty
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 1675
Joined: Wed Feb 14, 2018 9:17 pm
Location: Pennsylvania, USA

Re: Ignition filter

Post by Lofty » Tue Jul 07, 2020 6:57 pm

That's obviously an aftermarket ignition filter. Using the OEM part will produce a stronger spark.
Inventory:
2018 Ural Gear Up
2015 Suzuki DR650
1991 Bianchi Osprey
1952 Columbia RX-5 ('87, NOS)

stagewex
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 7406
Joined: Sat Jul 14, 2012 10:45 pm
Location: New Rochelle, New York

Re: Ignition filter

Post by stagewex » Tue Jul 07, 2020 7:09 pm

That's great! Better than a Flux Capacitor.
Now, has anyone asked you about it? Man, the stories you could come up with...
Stagewex

Current Herd all running amok:
2019 Honda CRF450L (Elec Start)
2008 Vespa 150S (Elec & Kick Start)
2007 Ural Patrol (2WD, Elec & Kick Start)
2006 Honda "Big Ruckus" PS250 (Elec Start)
1991 Honda XR250L (Kick Start Only) *NOT running amok, out for Bottom & Top-End Rebuild.
1986 Yamaha BW200ES (Elec & Kick Start)

List what you "have", keep the others in your precious memory bank.

User avatar
Snakeoil
Order of Suvarov
Order of Suvarov
Posts: 4788
Joined: Sat Nov 29, 2014 9:45 pm
Location: Upstate NY

Re: Ignition filter

Post by Snakeoil » Tue Jul 07, 2020 7:43 pm

Okay, now that all the witty feedback has been generated, I have to ask, what is the engine in the pic? It looks like an S90, but then again, not really. Plus the carb bowl is in the wrong location. Is it a Honda clone, a moped or what???
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?".

User avatar
Lmo
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 5379
Joined: Wed Jun 10, 2015 3:19 pm
Location: Pismo Beach via So. Indiana

Re: Ignition filter

Post by Lmo » Tue Jul 07, 2020 11:37 pm

Oil filler (lower left) in the photo doesn't feel like Honda. Rubber boot and carb above doesn't feel like Honda. No cooling fins on the head... almost looks like water-cooled.

My money is on some kind of 'scooter' engine.

Image
CF Moto V3 > https://www.motorcyclespecs.co.za/model ... sport.html

... which actually looks like it might kind of fun to ride!
Lew Morris
Dnepr w/ '06 Ural Drive Train
C5 Power Arc
125/42 jets
Drilled slides/
.030" shims

1973 BMW R75/5 (original owner)
1947 HD FL (long gone, forever regretful)

stagewex
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 7406
Joined: Sat Jul 14, 2012 10:45 pm
Location: New Rochelle, New York

Re: Ignition filter

Post by stagewex » Wed Jul 08, 2020 9:53 am

Reminds me of a Aermacchi engine when Harley was having them build small displacement bikes for them in th 1960's.
Italian.
Stagewex

Current Herd all running amok:
2019 Honda CRF450L (Elec Start)
2008 Vespa 150S (Elec & Kick Start)
2007 Ural Patrol (2WD, Elec & Kick Start)
2006 Honda "Big Ruckus" PS250 (Elec Start)
1991 Honda XR250L (Kick Start Only) *NOT running amok, out for Bottom & Top-End Rebuild.
1986 Yamaha BW200ES (Elec & Kick Start)

List what you "have", keep the others in your precious memory bank.

User avatar
Snakeoil
Order of Suvarov
Order of Suvarov
Posts: 4788
Joined: Sat Nov 29, 2014 9:45 pm
Location: Upstate NY

Re: Ignition filter

Post by Snakeoil » Wed Jul 08, 2020 11:24 am

stagewex wrote:
Wed Jul 08, 2020 9:53 am
Reminds me of a Aermacchi engine when Harley was having them build small displacement bikes for them in th 1960's.
Italian.
I saw the resemblance, too. But I'm only familiar with the 250 and 350 Sprint engines and the head is wrong for either version of that engine. I thought Lew had cooked up this photo with one of his bikes. But I see he's stolen this from someone else and is the Milton Berle of Soviet Steeds. :wink:
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?".

stagewex
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 7406
Joined: Sat Jul 14, 2012 10:45 pm
Location: New Rochelle, New York

Re: Ignition filter

Post by stagewex » Wed Jul 08, 2020 11:42 am

"Milton Berle of Soviet Steeds"

HaHaHa, who/how many folks are actually going to get that? Too funny.


I have a friend restoring (or trying to restore) a 1966 350 Sprint.
Here's more of a racer version for sale nearby. Pricing might be more wishful thinking but I don't really know the market for these bikes. They have gained popularity over the last few years but not as much as 1960's & 1970's Japanese bikes that are ridiculously reliable no matter how old they are if kept in order:

https://nwct.craigslist.org/mcy/d/new-c ... 32063.html
Stagewex

Current Herd all running amok:
2019 Honda CRF450L (Elec Start)
2008 Vespa 150S (Elec & Kick Start)
2007 Ural Patrol (2WD, Elec & Kick Start)
2006 Honda "Big Ruckus" PS250 (Elec Start)
1991 Honda XR250L (Kick Start Only) *NOT running amok, out for Bottom & Top-End Rebuild.
1986 Yamaha BW200ES (Elec & Kick Start)

List what you "have", keep the others in your precious memory bank.

User avatar
LRP
Order of Lenin
Order of Lenin
Posts: 2490
Joined: Sun Sep 28, 2008 8:25 pm
Location: Deltona, FL

Re: Ignition filter

Post by LRP » Wed Jul 08, 2020 3:42 pm

Filter on backwards--will cause back pressure that will burn out coil and battery.
Army Bird Dog Pilot, Nam.
2018 CT
Traded '08 Patrol
2008 Royal Enfield cast iron military
1983 Honda Passport

19 previous motos

User avatar
Peter Pan
Hero of the Soviet Union - 2020
Hero of the Soviet Union - 2020
Posts: 3656
Joined: Fri Jan 31, 2014 11:30 pm
Location: Heredia, Costa Rica/new speed record 115kmh by son

Re: Ignition filter

Post by Peter Pan » Wed Jul 08, 2020 4:08 pm

What good that wikipedia is so kind to help me out here: Mendel Berlinger
Now to look for some tube.scetches.
Thanks for entertainment Lew.
Sophie Travelair = Patrol 2013
8 weeks 12.000km Oregon-Alaska-Oregon
With a DIY foam air filter the rig runs well even in tropical rain = :moto:
Final drives: 1. at 5000km, 2. at 34.000km(+friction plates) 3. at 42.386km
transmission: 1. 40.000km. 2. installed
Engine: 1. 43.388km crank replacement: Back on the road since 23.Okt.2019 :party:

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

Post Reply