Refurbishing a 1980 Yamaha SR500

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rebelrider
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Re: Refurbishing a 1980 Yamaha SR500

Post by rebelrider » Mon Jun 29, 2020 7:16 pm

I finally got the motivation to start on the fuel tank. I've been putting it off most of the last year. It's gonna be another mini-project.


When I stripped the paint off, I found filler underneath.
Image

I was surprised how well the rock tumbling worked. Nuts and regular gray rocks went in, Mars came out:
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Got the filler cap taken apart and ready for repair.
Image

This is my 4th tank interior, but I've never done the outside of a tank before. Should be interesting.
Mike
Image2014 Ural M70 "Trogdor"
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Re: Refurbishing a 1980 Yamaha SR500

Post by rebelrider » Wed Jul 01, 2020 5:51 pm

More progress.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
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lendrinkard
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Re: Refurbishing a 1980 Yamaha SR500

Post by lendrinkard » Wed Jul 01, 2020 10:58 pm

Interesting Mike
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2013 NOS Ural T - 130/42 jet, 2 shims, LED running lights, oil cooler

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Re: Refurbishing a 1980 Yamaha SR500

Post by rebelrider » Thu Jul 02, 2020 7:47 pm

Thanks!

Here's one more video, which catches me up to where I actually am at the moment:
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
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Re: Refurbishing a 1980 Yamaha SR500

Post by rebelrider » Fri Jul 24, 2020 5:46 am

The project is moving slow right now, but here's a couple pictures of the progress I've made with the fuel tank:

Image
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Since I was holding it like a caught fish, I hung it from a scale just for fun. Turns out I caught a 7.2 lb Red... Herring? Yeah, my humor muscle may be broken.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
1971 Honda SL100

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Re: Refurbishing a 1980 Yamaha SR500

Post by lendrinkard » Fri Jul 24, 2020 1:20 pm

Very nice Mike
2012 Gear up - 130/40 jet, 3 shims, no mid-pipe, drilled slider, 2013 Branch pipes, all LED lights
2013 NOS Ural T - 130/42 jet, 2 shims, LED running lights, oil cooler

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Re: Refurbishing a 1980 Yamaha SR500

Post by Claus » Fri Jul 24, 2020 3:23 pm

Very nice Mike. You could have given it a little more paint to get a shiny surface. The primer looks real tidy.
I can´t wait until your Bike is ready to go. You spent a lot of time in bringing it back to the road and you deserve success!
owned bikes: 93 Ural rig domestic model, 95 Suzuki DR 650 RSE, BMW R100GS, Suzuki GSX1100G rig, BMW R100R rig with Ural sidecar, Ural rig with BMW drivetrain under construction,

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Re: Refurbishing a 1980 Yamaha SR500

Post by Rich Maund » Sun Aug 02, 2020 10:25 am

The paint does look a bit orange peel. A slightly heavier coat to allow it to flow out as it reduces will help that. Gotta be careful though. Too heavy and you get curtain runs! Don't ask how I know that. I once repainted a fairing 9 times. My son told me "You know Dad, a normal person would have given up after a few tries". But as a geek, I viewed it as a learning experience. By the end of it, I could lay paint like a boss! Great project! Thanks for sharing this.
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Re: Refurbishing a 1980 Yamaha SR500

Post by rebelrider » Mon Aug 03, 2020 8:51 pm

Yeah, I'm a novice spray painter. I'll probably come back and work on this some more later. Another can of clear coat, and maybe some Turtle w@*? I don't know. I've read that paints don't hold up to gasoline well, and being a gas tank... I'm looking for something to protect the paint from fuel drips. The paint that Ural uses certainly doesn't work, LOL. I thought a w@* might let it bead and fall off like water would.

Anyway, it's protected from rust for a while, which is the primary objective. :)
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
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Re: Refurbishing a 1980 Yamaha SR500

Post by Claus » Tue Aug 04, 2020 3:46 am

rebelrider wrote:
Mon Aug 03, 2020 8:51 pm
I've read that paints don't hold up to gasoline well, and being a gas tank...
There´s a very good way to protect the paint: Just don´t spell gasoline when filling up... :wink:
owned bikes: 93 Ural rig domestic model, 95 Suzuki DR 650 RSE, BMW R100GS, Suzuki GSX1100G rig, BMW R100R rig with Ural sidecar, Ural rig with BMW drivetrain under construction,

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Re: Refurbishing a 1980 Yamaha SR500

Post by rebelrider » Sat Aug 15, 2020 4:08 am

More progress...
Mike
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Re: Refurbishing a 1980 Yamaha SR500

Post by jvan1954 » Sun Aug 16, 2020 12:23 pm

I have done my own work all my life and even thought I refurbished my pan. But I did not have the patience and drive needed to take it to this level, pretty impressive.
Jerry Van

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Re: Refurbishing a 1980 Yamaha SR500

Post by TomsFunMachine » Sat Sep 05, 2020 11:40 pm

That's awesome! Hard to believe there is such a cult following for these, given that bike's humble beginnings, yet here we are

I worked at a Yamaha dealer when these things were on the showroom floor, Concord Yamaha, Concord CA. Mind you, the R5 and RD's were the hot-rods I liked to ride, would jump on the chance to work on one of those, if the opportunity presented itself. The XT500 was sort of popular among the desert dirt bike riders, I was a died in the wool 2 stroke fan, and just didn't get it. The YZ series dirt bikes had everything as far as I was concerned, no need for camshafts, valves, and one pop per two revolutions.

I remember looking one over while doing a pre-delivery service and road test, inexpensive and a small 500cc 2-stoke thumper, and saying to my myself, like the oft overlooked RD125, "who the heck would buy one of those?"

The sales guys hated the small bikes, a lot of work and not much sales commission, they'd rather sell an XS1100 'special' w/black chrome package, helmet, jacket, crash gaurds, warranty plan, and anything else they could add-on. For the life of me, I couldn't figure out who or why anyone would want an SR500... That is, until I rode one! Smooth 'roll on power' off the corners, nimble, crisp, good handling for the day, not enough power to get you into serious trouble, but enough to get you out of it. Good on ya for taking the time to bring one back!
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