My 71 xs650

Mountain Rider

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Hello All,

To start my father-in-law gave me his 71 XS650 about 13 years ago and at this time I was able to get it running and drive it around the block with gas leaking out the overflow all over the eng and ground. This is when I found Mikes XS and I ordered a carb rebuild kit, new gasket kit and wire harness, head lamp kit, and bottom sump filter. I worked on the carbs adding the new floats as old ones were rusted and filling with gas. Once this was done I had to move out of state and the bike went into storage in a lean-too shed of sorts no rain but a lot of dust.

So now I have a proper garage and I am looking at bring this scooter back to life. I am stuck with, doing a restro or cafe/street tracker kind of build on the scooter. I would love to chop it but then I would not be able to do a restro on it later if I so thought it worthy. The first thing I will do is try to get it running again and then see what parts need replacing. As the bike has been in storage for so many years and being 45 years old with 18k on it,what would you all suggest I look at first? I believe that the engine should be fine with only 18k on it and my father-in-law is a auto mechanic so he took care of it when he had it (when he gave me the bike he said not to crack the engine open). I do have leaking oil coming out of the seals and this is why I picked up the gasket kit.
Would trying to start the engine now after stetting for so many years be a bad thing to try i.e. oil ports being plugged up etc.

Now as you can guess by my questions that I am not a mechanic, but I am very mechanically inclined at least I would like to think so. My Father-in-law did give me a original service manual for XS1 (1970), XS1B (1971), XS2 (1972) so this will help out a bunch. I will also read this post http://www.xs650.com/threads/bike-wont-start-running-rough.390/ to get started as well. I have been spending some time on on mikes-xs parts site and see that things like PMA can be done and other mods as well. If I choose to do a cafe kind of build then I guess mods that can bring the bike up to the modern age would be a plus. To try nto shorten this story up a bit I am looking at tearing the bike down and cleaning it up and go from there. Any thoughts on this would also be helpful.


Now for another question according to http://www.650motorcycles.com/XS650yearID.html. My XS should be candy orange. My neck sticker and stamped vin number do not mach with this site. build date is 8/1971 pic below

xsid.png


xs1.png


Any thoughts on this?

Two builds I would like to try for if I go cafe/streetcafe are

I know that this is a Kawasaki but I do like the look, sort of like an old BMW.
l2.jpg

and another build I sort of like.
l1.jpg


Ok, I'll leave it with this for now. I know it was a lot to take in and scattered brained. I thank all in advance for any thoughts and help.

peace.....
 
This is more complete than my XS1 came back to me. As it is an XS2, were it me, it would be brought back to stock! Clean it up, then make the call and if you choose to chop it up, don't throw anything away, ALL the early parts are precious. Just sayin'. john
 
I will not throw anything away and I will first try to get it up and running. Once it's running I will then decide what to do next. So you are also saying that I have a XS2 not a XS1B?
 
Quote:
"I have been spending some time on on mikes-xs parts site and see that things like PMA can be done and other mods as well. If I choose to do a cafe kind of buildthen I guess mods that can bring the bike up to the modern age would be a plus."

There is a lot of marketing done on the aftermarket web sites. If you get drawn into the marketing too far, you'll end up spending a lot more money than you need to. The stock alternator works just fine on these bikes, and is as modern as the alternator in your present day car or truck. The stock OEM regulator and rectifier on your bike are of an old design, and need to be retired. A big improvement is to use an automotive VR-115 regulator (or equivalent) and a new 3 phase rectifier. A much less expensive option.

The stock alternator is a high quality Japanese product. The PMAs being sold by the aftermarket sellers are medium to
low quality Chinese parts.
 
so XS 2 were built in 71 then as the service manual has 72 as XS2 (1972) but mine was built in 71.

Michaelo I am not going to chop the frame or anything on the bike. I would look for other parts to use for a cafe build or another frame if I wanted to go with a chop/bobber build.
If anything I will keep all original parts and find other parts that I can use on the bike to make my build with the ability of bringing it back to stock.:thumbsup:

Quote:
The stock OEM regulator and rectifier on your bike are of an old design, and need to be retired. A big improvement is to use an automotive VR-115 regulator (or equivalent) and a new 3 phase rectifier. A much less expensive option.

Retiredgentleman thank you for your input. Any thoughts on brands or best place to pick up such items like the regulator and 3 phase rectifier?

How is the rectifier at mikes-xs
https://www.mikesxs.net/yamaha-xs650-rectifier-fits-70-79-650-s-oem-447-81970-10-00.html
https://www.mikesxs.net/yamaha-xs650-rectifier-fits-70-79-650-s-oem-447-81970-10-00.html
and something like this for regulator?
https://www.carid.com/standard/volt...?view=536030&gclid=CODO7qbK29ACFQwYgQodZTIB9Q
 
Hi Mountain Rider,
don't sweat the model/year discrepancy because there ain't one.
Manufacturers typically start building the next production-year's vehicles about July of the previous year.
 
so XS 2 were built in 71 then as the service manual has 72 as XS2 (1972) but mine was built in 71.

Michaelo I am not going to chop the frame or anything on the bike. I would look for other parts to use for a cafe build or another frame if I wanted to go with a chop/bobber build.
If anything I will keep all original parts and find other parts that I can use on the bike to make my build with the ability of bringing it back to stock.:thumbsup:



Retiredgentleman thank you for your input. Any thoughts on brands or best place to pick up such items like the regulator and 3 phase rectifier?

How is the rectifier at mikes-xs
https://www.mikesxs.net/yamaha-xs650-rectifier-fits-70-79-650-s-oem-447-81970-10-00.html
and something like this for regulator?
https://www.carid.com/standard/volt...?view=536030&gclid=CODO7qbK29ACFQwYgQodZTIB9Q
I recommend you not buy that rectifier from Mikesxs. You can use 2 bridge rectifiers or 1 three phase rectifier. Most lads are using a three phase rectifier that can be found on Ebay. Search around................all you need is one that is rated for 25 amps.

Yes, the regulator you linked to will work really well for you.

Here is a link that has all the details you need:
http://www.xs650.com/threads/regulator-rectifier.21485/
 
Hi Mountain Rider,
don't sweat the model/year discrepancy because there ain't one.
Manufacturers typically start building the next production-year's vehicles about July of the previous year.

Ok.
I just wanted to make sure as when I go looking for parts that I may need, I am looking for the right stuff.

Thank you again Retiredgentleman.
 
hello again all,

I have my scooter all tore down to the frame, I do not want to cut up my 71 frame because one day I may want to do a restro job on the bike. What I am thinking I would like to do is get another frame that I can put the power plant into for my cafe build, then take my time on cleaning my 71 frame up for the restro at a later date.

Ramrod, yes all years of engines fit all years of frames. Just have to use the engine mounts that go with the frame. The 70-73 engine mounts are different from the 74 up.
As far as frame changes effecting the engines are early and late. Just two frame changes there. The third frame change is the standard to special and as far as the engine goes they are the same.
Leo

Reading XSLeo post all year frames will work for my engine so finding a frame to use for a cafe build should not be to big of a deal I hope?

Yes, your going right over it. In the post above yours I mentioned my "75 34 mm forks"
Just to help clarify, the 70-76 had 34 mm forks, the 77 up had 35 mm forks.
On swapping fork around the 70-73 had a shorter stem than the 74 up.
So if you want to use the later 35 mm forks you may need to add a spacer on the top to compensate for the longer stem of the later trees. Or swap the stems from an early tree into the late tree.
Leo

With this information from XSLeo if I go beyond 76 I would have to look at a using different forks or tree & stem for my stock forks or find another set of forks. Is there by chance aftermarket shims that can be used in a 35mm tree for 34mm forks, or would this not be wise?

The more I think about this, a cafe build will end up costing me more then a restro job in the long run as the only parts that I will most likely use off my 71 is the engine, wheels, forks, front break, some electrical and hardware miscellaneous parts, etc.

Dalema, its to bad that I do not like the stock XS looks and lines, but respect the vintage aspects of the scooter not to cut up the frame and mod it for what I want. Guess I'll keep cleaning things up and think about it some more.
 
I recommend you not buy that rectifier from Mikesxs. You can use 2 bridge rectifiers or 1 three phase rectifier. Most lads are using a three phase rectifier that can be found on Ebay. Search around................all you need is one that is rated for 25 amps.

Yes, the regulator you linked to will work really well for you.

Here is a link that has all the details you need:
http://www.xs650.com/threads/regulator-rectifier.21485/
I see all you said was 25 amp...is this overkill? Would it work? It's cheapLook at this on eBay http://www.ebay.com/itm/261433465119
 
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