[ACtoronto]

Hey guys,
I am restoring and rebuilding a 83 Yamaha virago 750. I am come to the point of disassembling, the rear swing arm from the centre stand and frame, and as many of you probably know Yamaha did not have a grease fitting to be able to lubricate the swingarm shaft bolt. As a result, many viragos around the world after 2 decades of not restoring/lubricating this bolt and bushing fused and rusted together. In many cases heating these parts still do not do it and ultimately the bolt needs to be cut on each side of the swing arm to remove the inner bushing race and the bolt fused inside. Yamaha does not make this both anymore however, they do make every single other part in the diagram.

Does anyone have an old swing-arm with this bolt and willing to sell? Or does anyone know the dimensions of this both so that if I cut it, I can get it remade locally. Or is there any other way of solving this after cutting off the OEM bolt with another bolt?

What anyone else done?

Attached is the diagram that I’m dealing with and the both is labeled as #6.

 

[Tinsnips]

I once got a similar assembly apart by chucking up a 3/8' bolt in a regular hammer drill. Spray the crap out of any areas of penetration you can find. Put the drill on hammer and push the 3/8 bolt head up against the parts you want to dislodge. May take a few tries with some reapplication of penetrating oil & soak time but it worked for me before. P:rovides great vibration in small enough amplitude not to deform parts. YUou may cause scuffs or gouges on aluminum parts though.

 

[ACtoronto]

I once got a similar assembly apart by chucking up a 3/8' bolt in a regular hammer drill. Spray the crap out of any areas of penetration you can find. Put the drill on hammer and push the 3/8 bolt head up against the parts you want to dislodge. May take a few tries with some reapplication of penetrating oil & soak time but it worked for me before. P:rovides great vibration in small enough amplitude not to deform parts. YUou may cause scuffs or gouges on aluminum parts though.

I once got a similar assembly apart by chucking up a 3/8' bolt in a regular hammer drill. Spray the crap out of any areas of penetration you can find. Put the drill on hammer and push the 3/8 bolt head up against the parts you want to dislodge. May take a few tries with some reapplication of penetrating oil & soak time but it worked for me before. P:rovides great vibration in small enough amplitude not to deform parts. YUou may cause scuffs or gouges on aluminum parts though.

I like where idea is going! The only issue here is the bolt backs out from the inside of the swing arm and I couldn’t be able to hammer on the end of the thread side to back it out.

 

[Tinsnips]

Yeah. You don’t need to hammer it out from inside. All you are doing is vibrating it in place to break loose the corrosion and allow penetrating fluid to get in. A 5 second buzz and re apply your favorite spray. Repeat every few hours.

 

[Tinsnips]

Same principle as a stuck screw. Put the screwdriver in the screw head and give it a sharp rap with a hammer. Usually jars the threads and breaks them loose.

 

[ACtoronto]

Yeah. You don’t need to hammer it out from inside. All you are doing is vibrating it in place to break loose the corrosion and allow penetrating fluid to get in. A 5 second buzz and re apply your favorite spray. Repeat every few hours.

Ok thanks, will keep trying!

 

[Tinsnips]

Hey! Where about a are you in TO? I am Niagara Falls.

 

[ACtoronto]

Nice! West end, Etobicoke by the lake

 

[Tinsnips]

Sweet! I lived on Martin Grove for a while. Love Etobicoke.

 

[ACtoronto]

Awesome ha! Cheers man. Wish me luck. If you know anyone with a spare bolt, I’ll just cut this one!

 

[Tinsnips]

I would imagine Woody’s salvage has one but he is out almost to Ottawa. There is a bike salvage down near the Queensway I think. Can’t remember the name. Kipling area where it turns industrial

 

[ACtoronto]

Yeah, I better start calling because there is nothing on kijiji. Also will check market place

 

[Tinsnips]

These guys have a hotmail address - been around a while I’d say

Oshawa cycle salvage

Used Motorcycle Parts, Used ATV Parts, Used Snowmobile Parts, Motorcycle batteries, Motorcycle chains, Gas Tank, Motorcycle Fenders, Motorcycle Shocks, Motorcycle Bearings, Motorcycle Batteries, Snowmobile Parts Canada, Used Parts Canada, Oshawa Cycle, Motorcycle Side Covers, Vintage Motorcycle...

www.oshawacycle.com

Closer to you

The Bike Yard - Used Motorcycle Parts - Motorcycle Salvage - New Parts and Accessories - Toronto, Canada - Free Satellite Parts Search - Honda Suzuki Yamaha Kawasaki

The Bike Yard...A motorcycle salvage shop located in the Toronto area specializing in Japanese used parts.

www.bikeyard.com

Almost certain he has one:

http://woodys-cycles.com/

 

[ACtoronto]

UPDATE SOLVED? - YES KIND OF***

so after a long search, I found a nice lad from the UK who went through this issue on 2 bikes. He was able to get 1 free. He then used OEM bolt and had many of them remade from toughened en24 steel and anodized so not to rust.
You can contact him on Facebook by the name “Andrew Nicholls” he has about 7-8 left I think. Charging about 60£ pounds per bolt.

might be someone’s only option! Cheers

 

[colvfrfg]

I had similar problems on a Suzuki trail bike swingarm. I had a new axle bolt made with a small hole drilled down the centre and two smaller holes where the bearings are. I fitted a grease nipple on the end and the bearings and bolt never seized again. All were still good after 12 years hard trail riding use.

 

[Bweighmaster]

Standard metric bolt ... don't have to be exact as OEM ...