cotter pin

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samuria
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cotter pin

Post by samuria » Wed Oct 13, 2021 4:45 pm

tried the search but no good.
are the kick start cotter pins the same as bicycle ones?
both my bikes had filed down bolts hammered in :x
1977 650 cossack combo

1976 650 dnepr solo

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Tomcatfixer
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Re: cotter pin

Post by Tomcatfixer » Wed Oct 13, 2021 4:56 pm

If it's a castle nut, then I don't see why any cotter pin that will fit through the hole and will keep the nut from backing off wouldn't work.

content.jpg

I purchased an assortment of various sized cotter pins and just use the diameter that best fits the application.
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Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "Little Red Bear", 1999 Ural Tourist "The RPOC", Mid-Nineties Ural Tourist "The Heap", 1994 Honda VFR750F, 2007 BMW K1200GT

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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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samuria
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Re: cotter pin

Post by samuria » Wed Oct 13, 2021 5:25 pm

its like a wedge shaped bolt that's knocked into the kickstart
to hold it on the shaft...
1977 650 cossack combo

1976 650 dnepr solo

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Lokiboy
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Re: cotter pin

Post by Lokiboy » Wed Oct 13, 2021 5:30 pm

Just a standard cotter pin. That pin holding the Kickstarter takes Herculean effort to punch out (I pounded on it using a drift and 4lb sledge hammer - after 5 mins I gave up.) Leave it if you don’t need to remove it.
Last edited by Lokiboy on Wed Oct 13, 2021 6:04 pm, edited 1 time in total.
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Re: cotter pin

Post by Snakeoil » Wed Oct 13, 2021 5:38 pm

They are really referred to as cotters, not cotter pins. The photo Chad provide shows a cotter pin.

Measure your cotter hole and go measure a cotter at a bike shop and you'll have your answer.
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Re: cotter pin

Post by Desantnik-VDV » Wed Oct 13, 2021 5:40 pm

Yes, its like the ones used in bicycles...
I would think the design and the size is still the same throughout the years for 650-750 cc Urals.

See # 6 (part number 72-04417) in parts catalogue for 2010: https://live.uralcatalog.com/details/845


A different view, part # 25.
https://uralofholopaw.com/gearbox.html
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Alex
2007 camo GearUp - BMD (https://en.m.wikipedia.org/wiki/BMD-3)
40 idle/130 main/ 1.5 shim (0.8 mm washer)
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The rest is just history... 4 previous Urals with telescopic front ends, BMW airheads, bigger Hondas, bigger sidecars...

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Re: cotter pin

Post by Tomcatfixer » Wed Oct 13, 2021 5:44 pm

OH! this is where pictures help (I'm told they're worth a thousand words).

No, you need to order the proper replacement wedge pin. I'm not sure if Dneprs are configured the same, but on Urals, the driveshaft has a wedge pin similar to the kickstarter's, but they're not the same (I had to look it up to confirm). This isn't relative to your query, but I researched it for my own satisfaction.

Screenshot_20211013-173403_DuckDuckGo.jpg
Screenshot_20211013-173443_DuckDuckGo.jpg
Screenshot_20211013-173526_DuckDuckGo.jpg
Screenshot_20211013-173559_DuckDuckGo.jpg

Since the kickstarters are so similar between the marques, perhaps you can order a Ural wedge pin from a local dealer and use it on your Dnepr? Of course, the proper Dnepr wedge pin is probably readily available there in Europe.
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- Chad

Gordonsville, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "Little Red Bear", 1999 Ural Tourist "The RPOC", Mid-Nineties Ural Tourist "The Heap", 1994 Honda VFR750F, 2007 BMW K1200GT

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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samuria
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Re: cotter pin

Post by samuria » Wed Oct 13, 2021 5:51 pm

Snakeoil wrote:
Wed Oct 13, 2021 5:38 pm
They are really referred to as cotters, not cotter pins. The photo Chad provide shows a cotter pin.

Measure your cotter hole and go measure a cotter at a bike shop and you'll have your answer.
in the uk the photo that chad shows its called a split pin.
and cotter pin for the kickstart shaft the same as used on old raleigh bicycle pedal
shafts
1977 650 cossack combo

1976 650 dnepr solo

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Desantnik-VDV
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Re: cotter pin

Post by Desantnik-VDV » Wed Oct 13, 2021 6:06 pm

Older model parts via this link: http://uraldnepr.ru/index/0-115

You can ask "Sancho", the creator of this video. He should know.

Alex
2007 camo GearUp - BMD (https://en.m.wikipedia.org/wiki/BMD-3)
40 idle/130 main/ 1.5 shim (0.8 mm washer)
---------------------------------------------------------------------------------------------------------------
The rest is just history... 4 previous Urals with telescopic front ends, BMW airheads, bigger Hondas, bigger sidecars...

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Re: cotter pin

Post by jaybird » Wed Oct 13, 2021 10:22 pm

I just went out to my motorcycle shed and looked at some parts, it appears that the Dnepr and Ural wedge bolts/cotter pins are the same, at least among the stuff I have.
Before I had spare wedge bolts I tried bicycle cotters, I couldn’t find any that were large enough, and according to my kid who is somewhat of a bicycle expert, they don’t come in a size that big🤷‍♂️ Might be different in the UK where cottered bicycle cranks are more prevalent.
I’ve never had any trouble getting any wedge bolts out, but I generally take great pride in being smarter than inanimate objects. What you might find, since someone used filed down bolts is that the kickstart lever bores or the flat on the shaft is worn. A new cotter may not be enough to tighten everything up, you may need to hunt for a “tighter” kickstart lever.

Happy trails,
Jaybird
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samuria
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Re: cotter pin

Post by samuria » Thu Oct 14, 2021 5:02 am

thanks guys, all good info.....
1977 650 cossack combo

1976 650 dnepr solo

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windmill
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Re: cotter pin

Post by windmill » Thu Oct 14, 2021 10:26 am

Bicycle crank cotters come in 3 diameters, 8.5mm, 9mm, and 9.5mm. The angle and length of the flat is also unique to each. Probably best to just get the correct one rather than try to bodge it with a bicycle cotter

Bicycle cranks aren't robust enough to tolerate much beating to get a old stuck cotter out, and cotter presses aren't cheap. I've had good luck using a C clamp and socket to press them out.
Barry

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RC20
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Re: cotter pin

Post by RC20 » Fri Oct 15, 2021 6:34 pm

Never saw a cotter (or a cotter pin) on on a bicycle , you learn some odd things here.
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