650 custom air filter

The "Pimp my Ride" section for Soviet bloc bikes. Everybody seems to have their own custom add-ons, modifications & accessories. Share your tips and post pictures of them here.
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This is the place for topics concerining modifying and accessorizing your Ural or Denpr.
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4REICH
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650 custom air filter

Post by 4REICH » Wed Jun 05, 2019 6:02 pm

I am mounting an older gas tank to a M66. The crossover nipples are making contact with the air filter. How do I overcome this problem? I figure taking off the stock part and shoving a 5 inch x 2 inch round automotive style filter into the hole and covering the top would be a solution. Perhaps the collective has a better idea
13 Ural ST solo
94 solo
74 M66
Customs
1995 XL,1959T120,1968A65,1970T120,
Stock
2017bullet,2016V7
Projects
R50/6, R50/7

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jaybird
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Re: 650 custom air filter

Post by jaybird » Wed Jun 05, 2019 7:09 pm

Some photos of what you have, and the area of interference might help produce some useful suggestions.
I recently built a snorkel with a remote air filter for driving through deep water with my GearUp, probably not exactly what you're looking for but you might use some modified version of it to suit your needs.
If your M66 has the round filter fitting made into the transmission case, fitting a dry paper filter there might be your best option.
I'll see if I can post some photos.

Happy trails,
Jaybird
2005 Gear-Up, Mr. Nat_ural 108,000+ Kilometers and counting
2013 Retro, Black beauty, AKA Lucky "13"
1995 Olive Tourist
1975 Enfield Diesel Bullet
2008 Enfield Bullet 500
1974 BMW R 75/6
Etc.

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jaybird
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Re: 650 custom air filter

Post by jaybird » Wed Jun 05, 2019 7:12 pm

Try this for one idea;

viewtopic.php?f=11&t=51084&p=654721&hil ... er#p654721

Happy trails,
Jaybird
2005 Gear-Up, Mr. Nat_ural 108,000+ Kilometers and counting
2013 Retro, Black beauty, AKA Lucky "13"
1995 Olive Tourist
1975 Enfield Diesel Bullet
2008 Enfield Bullet 500
1974 BMW R 75/6
Etc.

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4REICH
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Re: 650 custom air filter

Post by 4REICH » Wed Jun 05, 2019 11:56 pm

Thank you for the suggestions Jaybird. I wondered if a vw bug type filter would work. I just don't want to bend or stress the pipe. Also having trouble locating frame vin numbers. Soon I will strip/blast the frame, any suggestions where to look? Numbers aren't on the neck.
IMG_20190605_204158_kindlephoto-251239.jpg
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13 Ural ST solo
94 solo
74 M66
Customs
1995 XL,1959T120,1968A65,1970T120,
Stock
2017bullet,2016V7
Projects
R50/6, R50/7

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Tomcatfixer
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Re: 650 custom air filter

Post by Tomcatfixer » Thu Jun 06, 2019 2:16 am

I can't speak on 1974 Urals, but my 99's serial number is stamped on the frame's right front downtube (probably by the U.S. importer).
-
2019-06-06 02.09.47.jpg
2019-06-06 02.09.08.jpg
2019-06-06 02.15.47.jpg
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- Chad

Gordonsville, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "The Patrol", 1999 Ural Tourist "The RPOC", 1994 Honda VFR750F

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
Two different 1986 Yamaha FZX700S Fazers

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4REICH
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Re: 650 custom air filter

Post by 4REICH » Thu Jun 06, 2019 4:27 am

IMG_20190606_011335_kindlephoto-15089202.jpg
Good information Chad, my 13 also has a vin in the same location. Haven't registered the 94 so I never looked for the frame vin and it doesn't seem to have one either. I have out of state titles for both machines how they obtained titles without frame numbers is beyond me. Here's a photo of the M66 where the vin ought to be. What's the purpose of mysterious hacked off metal?
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13 Ural ST solo
94 solo
74 M66
Customs
1995 XL,1959T120,1968A65,1970T120,
Stock
2017bullet,2016V7
Projects
R50/6, R50/7

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Tomcatfixer
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Re: 650 custom air filter

Post by Tomcatfixer » Thu Jun 06, 2019 6:29 am

What's the purpose of mysterious hacked off metal?
Not sure. Looks like where a sidecar support strut lug was once welded to the frame.

Regarding your VIN situation, since you have a valid title, but apparently no serial number on your bike, I would either take number stamps and hammer the title's VIN into the frame OR have some fancy adhesive-backed foil VIN plates made (which I did for my '99 to replace the crappy white "paper" VIN stickers when I sandblasted the frame. Plus, I find my design more aesthetically pleasing.).
-
2019-06-06 06.23.56.jpg
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- Chad

Gordonsville, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "The Patrol", 1999 Ural Tourist "The RPOC", 1994 Honda VFR750F

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
Two different 1986 Yamaha FZX700S Fazers

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Lokiboy
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Re: 650 custom air filter

Post by Lokiboy » Thu Jun 06, 2019 8:04 am

Chad’s replacement makes it much easier to read and it does look nice
2011 Gear Up - "Erika"
Yorktown, VA

Mains: 127, Idle: 40, Needle: 1 shim
MKIII air filter
90,000 km and counting

jeffsaline
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Re: 650 custom air filter

Post by jeffsaline » Thu Jun 06, 2019 8:50 am

Looks to me like it would be easier to modify the fuel tank nipples than change the air filter.

Maybe cut the nipples so only a short portion is below the tank and then solder some new bent pipes over the shortened nipples.

Best,

Jeff
Jeff Saline
2010 Gear Up
-Good, Fast, Cheap. Pick Two
-Just because something isn't true, no reason you can't believe it. Hub McCann Second Hand Lions
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Re: 650 custom air filter

Post by jaybird » Thu Jun 06, 2019 9:31 am

You should be able to bend/manipulate the crossover tubes into a more favorable position by using a box end wrench as a lever.
New Jersey DMV doesn’t ask to see the VIN, or require a photo or pencil tracing for a straight title transfer and registration , does Nevada?

Happy trails,
Jaybird
2005 Gear-Up, Mr. Nat_ural 108,000+ Kilometers and counting
2013 Retro, Black beauty, AKA Lucky "13"
1995 Olive Tourist
1975 Enfield Diesel Bullet
2008 Enfield Bullet 500
1974 BMW R 75/6
Etc.

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propwash
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Re: 650 custom air filter

Post by propwash » Thu Jun 06, 2019 9:49 am

On older models of this vintage the frame number will either be -
- stamped on the frame near the left rear shock tower
- and/or on the dataplate on the frame neck
- or, none at all (registered in Russia via engine number)
None will be stamped on the downtubes on this vintage.

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Mr Wazzock
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Re: 650 custom air filter

Post by Mr Wazzock » Thu Jun 06, 2019 2:45 pm

4REICH wrote:
Wed Jun 05, 2019 11:56 pm
Thank you for the suggestions Jaybird. I wondered if a vw bug type filter would work. I just don't want to bend or stress the pipe. Also having trouble locating frame vin numbers. Soon I will strip/blast the frame, any suggestions where to look? Numbers aren't on the neck.
IMG_20190605_204158_kindlephoto-251239.jpg
That is one ugly filter box. :D
Mike H
2016 Ural cT, in glorious terracotta
(aka Oranzhevaya Opasnost, "The Orange Peril")

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Re: 650 custom air filter

Post by jaybird » Thu Jun 06, 2019 3:33 pm

Mr Wazzock wrote:
Thu Jun 06, 2019 2:45 pm
4REICH wrote:
Wed Jun 05, 2019 11:56 pm
Thank you for the suggestions Jaybird. I wondered if a vw bug type filter would work. I just don't want to bend or stress the pipe. Also having trouble locating frame vin numbers. Soon I will strip/blast the frame, any suggestions where to look? Numbers aren't on the neck.
IMG_20190605_204158_kindlephoto-251239.jpg
That is one ugly filter box. :D
Which one, the original Soviet oil bath air box, or the suggested VW replacement?
The fuel injection plastic airbox like on your rig is not exactly a work of art either, but I suppose it is functional.
Perhaps you have a workable solution for the OP? :cheers:

Happy trails,
Jaybird
2005 Gear-Up, Mr. Nat_ural 108,000+ Kilometers and counting
2013 Retro, Black beauty, AKA Lucky "13"
1995 Olive Tourist
1975 Enfield Diesel Bullet
2008 Enfield Bullet 500
1974 BMW R 75/6
Etc.

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propwash
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Re: 650 custom air filtering

Post by propwash » Thu Jun 06, 2019 4:00 pm

From your pictures I cannot tell what tank you are using.
I have seen many M66s with that tranny/air box/filter and although a close fit, concerning the cross-overs, it works.
My suggestion would be to install some rubber grommets were the tank meets the frame mount points at the rear to gain the necessary clearance and see if that works.
Many Soviet motos had grommets/shock mounts at this location around 1 cm thick. No issue going larger, it will just tilt the tank a bit forward.

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Claus
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Re: 650 custom air filter

Post by Claus » Thu Jun 06, 2019 4:47 pm

On my 1993 domestic model the VIN originally is stamped onto the left downtube, so are many domestic Urals I´ve seen. With homologating them to EU-standard, the VIN changed from 6 numbers to 17 numbers and went to the right downtube.
owned bikes: 93 Ural rig domestic model, 01 Ural 750 rig, 92 BMW R100GS, 92 Suzuki GSX1100G rig, 95 BMW R100R rig with Ural sidecar, 98 Ural rig with BMW drivetrain under construction

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