Author Topic: Terry's barn find XR500R  (Read 14753 times)

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Offline ekpent

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Re: Terry's barn find XR500R
« Reply #50 on: June 16, 2015, 08:23:51 AM »
When I met him at his yard sale he was hobbling badly and had a big red strawberry on his forehead from a recent bicycle accident. Having retired from his big house to a smaller older folks community and home he just wanted it gone so he would have more room in his shop to tinker on his Hot Rod car. When I asked his best price he said 250 and I said hell yes. Kind of like passing the torch, he knew he was done. When I get it sorted better I told him to come on down and take it for a spin, he has not rode it since 2003 when he tore it down for a refurb. He winked and said yes but don't tell the wife   ;D
  Now back to Terry's "Big Red" BEAST !!

Offline grcamna2

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Re: Terry's barn find XR500R
« Reply #51 on: June 16, 2015, 11:50:52 AM »
When I met him at his yard sale he was hobbling badly and had a big red strawberry on his forehead from a recent bicycle accident. Having retired from his big house to a smaller older folks community and home he just wanted it gone so he would have more room in his shop to tinker on his Hot Rod car. When I asked his best price he said 250 and I said hell yes. Kind of like passing the torch, he knew he was done. When I get it sorted better I told him to come on down and take it for a spin, he has not rode it since 2003 when he tore it down for a refurb. He winked and said yes but don't tell the wife   ;D
  Now back to Terry's "Big Red" BEAST !!

You walked into the right place at the right time;you may even be able to figure a way to make it 'streetable' and get a title.
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #52 on: June 16, 2015, 05:09:32 PM »
Thanks for that Eric, It's a shame you can't ride that Yam on the road, a big single is a fun road weapon too, I rode my Yamaha XT500 as my daily rider, then up to Bathurst for the Easter Motorcycle TT in 1985, a 1000 mile round trip in a weekend, (took about 12 hours each way with stops for gas, food, cigarettes, toilet breaks etc) but great fun, and with long travel suspension  the ability to go off road in an emergency situation is a real bonus too.

The XR has tons more grunt than the XT did, and with the high 15/45 gearing I put on it, should be able to keep up with traffic on the freeway too. Cheers, Terry. ;D   
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline ekpent

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Re: Terry's barn find XR500R
« Reply #53 on: June 16, 2015, 08:07:17 PM »
Looking forward Terry to hear more of your adventures on that thing. Glad you have a diverse taste and stable of bikes  to pull from.

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #54 on: June 16, 2015, 09:58:27 PM »
Thanks mate, it is nice to have a lot of different bikes, and I'm really looking forward to some new adventures on Big Red, I only wish the weather was a bit nicer! ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #55 on: June 18, 2015, 01:23:53 AM »
Well I'm a happy camper. The signed paperwork arrived this afternoon so I rushed off to the local VICROADS (DMV) office, and rushed back out with my shiny new club permit number plate and log book. Tomorrow, regardless of the foul weather we've had since Tuesday, I'm gonna go for a ride, and hopefully I'll get some pics of Big red out on the road. Woohoo! ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline ofreen

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Re: Terry's barn find XR500R
« Reply #56 on: June 18, 2015, 06:40:37 AM »
Big singles are fun on the road (paved or otherwise). I sold the KLR650 a couple of years ago and sometimes wish I had it back.
Greg
'75 CB750F

"I would rather have questions I cannot answer than answers I cannot question." - Dr. Wei-Hock Soon

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #57 on: June 18, 2015, 05:53:10 PM »
Thanks Greg, my thoughts entirely, I haven't owned a big single in 30 years and I'd forgotten how much fun they are. Good thing is, I think the XR600 and XR650 engines will slot straight in if I ever decide that I need more power........... ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Stev-o

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Re: Terry's barn find XR500R
« Reply #58 on: June 18, 2015, 06:35:54 PM »
Congrats on getting the paperwork, Terry. I know how that can be a good feeling.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #59 on: June 19, 2015, 01:33:27 AM »
Thanks Steve, and as you can imagine, I was keen to get the big beast out on the road, so this morning while waiting for the wife to go out for the day, I screwed the new number plate on, and found a registration label holder as well. I was gonna flush the brake fluid while I was at it because the soup in the master is probably older than some of the members here, but as the weather was turning from "crap" to "fcuking miserable", I decided to do it later.

I found a tool bag full of tools, so made up a set specific to the Honda, (which came in handy later on) and fired the big bugger up, letting it warm up while I put on my Aldi cheapo wet weather pants, and new Dr-Rider jacket. By this stage the wife had gone, the driveway was clear, and it was time to launch.

While the day had started out cold but at least sunny and dry, by the time I hopped on the bike it was lightly raining. First stop was the local gas station where all I could get into the tank was 15 bucks worth of 98 RON, but I figured that would get me 100 miles or so up the road, and so I headed north up the Hume Freeway.

I got off the freeway at Beveridge, then headed east thru Eden Park, Whittlesea, Kinglake West, and finally, Yea. I deviated off the main roads where possible to do a little dirt riding, which was probably grippier than the tarmac on some of the roads I was traversing, which were covered in green moss or black ice! 

   

Anyway, after an hour or so, I arrived at Yea, and pulled in for a pie and coffee at the Red Plate Cafe. The guy who runs the business is an old racer and mechanic, by the name of Andy Brebner. Andy and I yacked for an hour while I devoured a hot pie and large mug of coffee, and I took some pics of some of Andy's bikes. As you can see, Andy likes big singles too.







Andy told me that this is Australia's oldest motorcycle, circa 1898. Sadly it's not Andy's, because it's probably worth a fortune.



Anyhoo, being the XR's shakedown ride, there were a couple of minor issues. When we walked outside (Andy wanted to take a couple of pics of the XR) we noticed a small oil leak from the kickstart seal. No biggie, it's probably just dried out over the many years that it's been sitting.

I'll see if a CB750 seal will fit, if not I'll buy a new one. My speedo cable siezed up as well, making a screeching sound not unlike a WW2 air raid siren, so loud I could hear it over the booming bark of the engine, so I pulled over and disconnected the cable. When I got home I compared it to a CB750 cable and they were near identical, so I lubed and installed a spare one I had in a tub of other cables.

Apart from that it's probably running a little lean, my new K&N air filter hasn't arrived as yet, so I've been riding around with no air filter, but the factory airbox will have kept most of the crud out on today's trip. All in all, a great day, the bike went well, the new Pirelli Scorpion tyres gripped the frozen roads very well, my new Dri-Rider jacket and cheapo Aldi wet weather pants kept the rain out in temps as low as 38 deg F, and if my core eventually thaws out, I'll be a happy man! Cheers, Terry. ;D

I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline petercb750

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Re: Terry's barn find XR500R
« Reply #60 on: June 19, 2015, 01:39:26 AM »
Happy days mate!  8)
1972 750/4 K2 (his), 1976 400/4 (hers)
1982 CB1100RC (ours)

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #61 on: June 19, 2015, 01:58:29 AM »
Thanks Pete, geez I'm cold but, this guy knows what I'm talking about, he was so cold he couldn't get off his old DKW racer and come inside for a coffee, even when I offered to shout! ;D

I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline grcamna2

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Re: Terry's barn find XR500R
« Reply #62 on: June 19, 2015, 05:12:16 AM »
Sounds like you had a nice 'shake down run' on the XR Terry;did you do ok on dirt roads w/ those new tires? predictable sliding grip ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #63 on: June 19, 2015, 05:19:43 AM »
Well I have to admit that I took it pretty easy considering my ineptitude/weather conditions/desire to get home in one piece mate, but they felt pretty grippy. Cheers, Terry. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline scottly

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Re: Terry's barn find XR500R
« Reply #64 on: June 19, 2015, 09:48:56 PM »
Thanks mate, this thing is wickedly fast compared to my old Yamaha XT500, I can't find a BHP figure for a 1983/84 XR500RE for some reason, one spec sheet quotes the old model's 36 BHP and another says they put out 87 BHP, which is BS, but I'm guessing that it's somewhere closer to 50?
The rear wheel HP is probably closer to 30, Terry.  ;) What makes it feel like more is that the usable power band stretches from 2500 RPM to 7000+. ;D
Don't fix it if it ain't broke!
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Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #65 on: June 19, 2015, 11:57:13 PM »
Thanks Scott, I'd love to put it on Dyno, but Dyno time is stupid money here (I paid $300 to do two runs with my Rocket III) so I guess I'll have to do without hard numbers, but it's certainly got a ton more grunt than my old Yam XT500. I've just joined the Thumper forums, so someone there might have some data. Cheers, Terry ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #66 on: June 22, 2015, 01:03:43 AM »
Well the good news is that I've been researching the "Thumper Talk site" and the official BHP figure (from the factory workshop manual) for my wonderful XR500R is 41 BHP, so no wonder it feels more powerful than my old Yamaha XT500 with only 27 BHP!

I don't know what that equates to at the back wheel exactly, but using the "15 percent rule", means that it should still be making around 35 BHP at the rear wheel. Apparently the newer XR400 makes 34 RWHP and the old XR600 made 38, so that all sounds about right.   

Of course, with a big single torque is more important than BHP, so I've got a line on an XR600 engine that I might be able to pick up cheap, or maybe I'll just leave it alone. Maybe. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline MoMo

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Re: Terry's barn find XR500R
« Reply #67 on: June 22, 2015, 01:09:44 AM »
Well the good news is that I've been researching the "Thumper Talk site" and the official BHP figure (from the factory workshop manual) for my wonderful XR500R is 41 BHP, so no wonder it feels more powerful than my old Yamaha XT500 with only 27 BHP!

I don't know what that equates to at the back wheel exactly, but using the "15 percent rule", means that it should still be making around 35 BHP at the rear wheel. Apparently the newer XR400 makes 34 RWHP and the old XR600 made 38, so that all sounds about right.   

Of course, with a big single torque is more important than BHP, so I've got a line on an XR600 engine that I might be able to pick up cheap, or maybe I'll just leave it alone. Maybe. ;D




MORE POWER!!!!!!!!!!!!!!!!!!!!

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #68 on: June 22, 2015, 03:53:18 AM »
Ha ha, thanks Larry, and it's interesting, on my 120 mile ride last Friday I noticed that it was definitely running lean, as mentioned my K&N filter hadn't (still hasn't) arrived from the US of A so I assumed that accounted for it running a tad lean, plus I'm running a hotter plug. (D7EA as opposed to a D8EA because that's what I found in my CB750 spares)

More research on the Thumper Talk site reveals that they ran pretty lean in stock form anyway (thanks to the good ol' EPA) so some re-jetting might be in order, luckily it's a piece of cake to drop the main jets, each of the two carbs has a 17mm head threaded plug in the float bowl, and once again, I think I can drill some CB750 jets out to suit, but I'll wait until I've fitted the new air filter and gone back to the correct plug before I get too excited.

Anyway, the upshot was that as much as it ran great, started easy, idled fine etc, it hesitated a little when I cranked it on, but would happily accelerate up to around 90 MPH if I gradually increased the throttle. Now I'd filled the bike with it on the sidestand so I could have put another litre in the tank if it was standing up straight, and I've got at least a litre left in it, (didn't go on reserve) so considering it's only a 12 litre tank, I achieved very close to 60 miles per (imperial) gallon! Cheers, Terry. ;D 
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #69 on: June 24, 2015, 12:12:54 AM »
I'm back, fcuk it was cold outside today, but I was very brave and spent an hour or so in my driveway installing the new K&N filter, then I flushed the front brake's manky old brake fluid, which looked more like muddy water than hydraulic fluid.

I couldn't bleed the brakes properly until I realised that the bleeder screw in the caliper was blocked, then the air bleed hole in the MC was blocked with crud as well, so I used a jet drill to ream the hole/s, and once I'd done that I immediately had a hard lever. (on my MC...........)

I did think about taking it for a ride, but a few big cold rain drops convinced me otherwise. Friday looks like the best day to do a decent ride this week, as it'll be 60 deg F, woohoo, that's 50% warmer than last Friday when I took it out on it's maiden voyage.

The only thing I haven't been able to address as yet is the leaking kickstart seal, a CB750 seal is 3mm smaller OD so I can't fix it today, but I've ordered a new one, and as it's only a small leak it'll be OK to ride it until the new seal arrives. Cheers, Terry. ;D



I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline grcamna2

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Re: Terry's barn find XR500R
« Reply #70 on: June 24, 2015, 04:49:45 AM »
Well the good news is that I've been researching the "Thumper Talk site" and the official BHP figure (from the factory workshop manual) for my wonderful XR500R is 41 BHP, so no wonder it feels more powerful than my old Yamaha XT500 with only 27 BHP!

I don't know what that equates to at the back wheel exactly, but using the "15 percent rule", means that it should still be making around 35 BHP at the rear wheel. Apparently the newer XR400 makes 34 RWHP and the old XR600 made 38, so that all sounds about right.   

Of course, with a big single torque is more important than BHP, so I've got a line on an XR600 engine that I might be able to pick up cheap, or maybe I'll just leave it alone. Maybe. ;D




MORE POWER!!!!!!!!!!!!!!!!!!!!

Terry,
You could p-up the XR600 engine(as a 'spare'  ;D ) and take it to a flat track racer and have his tuner recommend some high performance work to get it pumped up 'for the open road'. Then you could save it for when you have problems w/ this engine and then just 'Drop it Right in' !  ;D  ;) :)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #71 on: June 24, 2015, 06:58:43 AM »
Thanks mate, sadly "Flat Track" doesn't exist in Oz, but there's plenty of guys on the "Thumper Talk" site that have worked XR600 engines, and it looks like a 650cc kit, bigger cam, carb and headwork will work wonders. Not that I need more power, I just like tinkering with all my bikes............ ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline grcamna2

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Re: Terry's barn find XR500R
« Reply #72 on: June 24, 2015, 07:42:57 AM »
Thanks mate, sadly "Flat Track" doesn't exist in Oz, but there's plenty of guys on the "Thumper Talk" site that have worked XR600 engines, and it looks like a 650cc kit, bigger cam, carb and headwork will work wonders. Not that I need more power, I just like tinkering with all my bikes............ ;D

NOW you're talking Terry !  THUMPER Power  8)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline scottly

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Re: Terry's barn find XR500R
« Reply #73 on: June 24, 2015, 09:54:10 PM »
According to the factory manuals, both the '82 FT500 and the XL500 made 33 BHP, despite different carburation and exhaust, but I haven't found anything on the '82 XR500. (Butt dynos from back in the day put the XR well ahead of the FT. ;))
A claimed 41 HP is a significant improvement, but the '82 CR480 had a claimed 51 HP, and only weighed 227 pounds dry, so even the later XR was no threat, and later CRs got up to 57 HP IIRC. Honda was dominating the open class with their two-strokes during that time, and the improved XRs were in no way meant to compete with them. Out in the dirt, (or snow) each bike had certain advantages. The CR could lug up steep hill climbs with ease, while the XR could easily navigate packed snow when the CR would break traction every time the piston fired, due to the lack of flywheel inertia, either throwing me onto the ground or doing a sudden 180. The tractability of the XR trumped the brute force of the CR in some conditions. 
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Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline Terry in Australia

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Re: Terry's barn find XR500R
« Reply #74 on: June 25, 2015, 02:46:18 AM »
Yeah Scott, it's not really fair to compare an XR to a CR, it'd be like comparing your CB750 to a H2. The benefit for me, 32 years on, is it makes a great commuter with the Pirelli Scorpion tires, and with the higher gearing is great fun on twisty mountain roads.

The other advantage is fuel economy. As mentioned earlier, I'm getting close to 60 miles per gallon on the big red beast, so my 120 mile ride last Friday only used a little over two (imperial) gallons, which is fantastic as if it was a CR500, I'd be looking for a gas station long before then.

Don't get me wrong, I love 2 strokes, but the modern crop of big 4 stroke singles are getting lighter and lighter, and with higher compression and fuel injection, are making incredible horsepower, modern 450's are making close to 60 BHP, with good tractable power right thru the rev range, with no unpredictable "power bands" to worry about.

I'd love to have a CR500, (or any of the other 2 stroke 500's of the era) but for what I'm doing at the moment, the mighty XR500R is the ideal tool. Here's a good review from "back in the day" Cheers, Terry. ;D

http://www.motorcyclespecs.co.za/model/Honda/honda_xr500re%2083.htm
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)