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Old Yesterday, 02:24 PM   #1
bigfoot69 OP
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Location: sacramento ca
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1982 honda xl500r upgrade and reliable

I got a falling apart 1982 Honda xl500r and made street legal but can't keep up with newer bikes what is the newest motor I can fit in the frame and what's the biggest .I heard I can fit 600 but what about newer 650 and once I get there can I get disc brakes as well. And what other mods and where would be the best place to get them
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Old Yesterday, 02:59 PM   #2
mcma111
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Just go find an older, low mileage XR650l. You'll save yourself a ton of grief.
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Old Yesterday, 03:01 PM   #3
mcma111
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Here:

http://chico.craigslist.org/mcy/4669593233.html
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BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
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Old Yesterday, 04:05 PM   #4
bigfoot69 OP
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l

Yeah normally I would say yes but the one thing I had to agree to with the free bike was to not sell it and don't have that kind of cash
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Old Yesterday, 04:52 PM   #5
bigfoot69 OP
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l

Yeah normally I would say yes but the one thing I had to agree to with the free bike was to not sell it and don't have that kind of cash
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Old Yesterday, 06:22 PM   #6
mcma111
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Got a boat? Now you have an anchor.









































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Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
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Old Yesterday, 06:26 PM   #7
bigfoot69 OP
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thats so true

I understand it sucks trust me I know but using what I got just trying to get what I can for it seen a lot of this bike that are so cool looking and mine is definitely a work in progress
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Old Yesterday, 06:38 PM   #8
Onederer
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What I remember is that bike has an open loop frame, meaning the engine is a stressed member, the engine completes the frame.

With the questions you're asking, any engine swap that is not direct is beyond your skill level, but even if it wasn't, the time and cost would not be worth the effort..

The XL500 engine is a pentroof combustion chamber design and from my memory it has a horizontally split case. I don't remember if it is a full roller bearing engine, but Ilm pretty sure the cam rides on the head material, like plain bearings.

I could easily check online, but you should do it. That year may be the one with a reed valve in the actual intake tract. Yes, a four cycle engine with an intake reed valve. The XR/Xl500 engine was supposed to be a hard starter too, especially when hot.

As far as power, that engine can still impress, but the brake and suspension are far too old of a design to expect them to be anywhere near newer bikes.

It would make a nice vintage bike for the street, but forget about it off road except for trail riding at a slow to moderate pace unless you like the heck beat out of you and like to always wonder if the brakes will stop after that last mud puddle.

Parts are going to be difficult to obtain and if you ride it off road you'll be needing extras.

I suggest restoring it to near as stock as practical and you can afford and enjoying it on some nice days. They will probably never be wanted like the Dreams, but it will always be a cool vintage bike to have.
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Onederer screwed with this post Yesterday at 06:47 PM
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Old Yesterday, 08:34 PM   #9
Carter Pewterschmidt
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Unless you're a good welder, then your best bet is to just buy a piston, cam, and exhaust for it.

If you're even more inclined then do a fork swap with a front disc and get a custom shock built.

That's about all the reasonable improving you're going to do.
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Old Today, 04:22 AM   #10
plugeye
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Quote:
Originally Posted by bigfoot69 View Post
I got a falling apart 1982 Honda xl500r and made street legal but can't keep up with newer bikes what is the newest motor I can fit in the frame and what's the biggest .I heard I can fit 600 but what about newer 650 and once I get there can I get disc brakes as well. And what other mods and where would be the best place to get them
you have the wrong bike.
get a twin or multi UJM.
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