jacob
XS650 New Member
thanks for the help ... the title says a 79 and it does have a 16 rear and 19 front spokes... im trying to also narrow down the stock carb that was on this bike ... im guessing a bs38 ... i need to order a rebuild kit
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Before you buy carb kits, be aware that about the only usable parts in there are the float bowl gaskets and the float valves. The needles and jets ae probaly wrong.
If your care ful when removing the float bowl you can reuse the gasket. I might suggest tearing the carbs down, do a good cleaning and inspection. If you find worn parts then just buy what you need. Often cheaper than a kit full of useless parts.
Also once torn down post up a list of all the internal parts, jets, needles, needle jets, pilots. Frome the numbers it will be easier to id your carbs. If strock they will be the 78-79 BS38 carbs, They used very different slides and needles than the earlier carbs.
Leo
If your care ful when removing the float bowl you can reuse the gasket. I might suggest tearing the carbs down, do a good cleaning and inspection. If you find worn parts then just buy what you need. Often cheaper than a kit full of useless parts.
Also once torn down post up a list of all the internal parts, jets, needles, needle jets, pilots. Frome the numbers it will be easier to id your carbs. If strock they will be the 78-79 BS38 carbs, They used very different slides and needles than the earlier carbs.
Leo
Kyle
frisco kid
inxs,
thanks for posting the engine numbers for model ID but im having a slight problem Im from england and bought a 1979 XS650 Special buth not sure what type it is and the engine number is 447 and thats it. do you have any idea what model special it could be?cheers buddy.
thanks for posting the engine numbers for model ID but im having a slight problem Im from england and bought a 1979 XS650 Special buth not sure what type it is and the engine number is 447 and thats it. do you have any idea what model special it could be?cheers buddy.
IRONHORSE
XS650 New Member
just printed off a copy of the Engine I.D numbers & year - model list! Very Useful, CHEERS 4 the info. IRONHORSE.
kitt
Kitt
i guess, according to this list, that my husbands bike is an xs-h special II. i hope i'm reading that right. thanks for the list. i'm hoping that this info will help me to find parts for his bike. i want it to be a surprise for him. 
Zeke
78 XS650 special
I have a 79 special and serial numer is 477-912xxx which doesn't come up other in chart saying AUS So is this bike from Australia ? I'm ordering seat cover and they change in these years . Thanks for any info
SF all except Europe in the Biker.net non American chart.
The 78SE/79SF/79 Special ll/80G Special ll have the hinged from the side stepped seat
The 78SE/79SF/79 Special ll/80G Special ll have the hinged from the side stepped seat
Attachments
Zeke
78 XS650 special
Thanks 650Skull ! Mine is the black with gold
I think your number starts 447 not 477. Your 447-912xxx in my chart makes it an 80 SF.
Leo
Leo
Hello everyone! new to the forums here and new to the xs650. i recently bought a barn find and the engine frame code starts with 016*** so that would mean that its an 71-72 right? Also did they make an xs650 in 1968? because that is what the title sais the year is? just want to confirm if i have the correct title for the bike.
Thanks in advance!
Thanks in advance!
Did you check your no against the ID PDF file on the first page first post.
Do that then come back if you have some differences or queries
Do that then come back if you have some differences or queries
If your title says it's a 68 XS650, that title is not worth much. The first year of the XS650 was called the XS1 and came out for the 1970 model year.
The frame and engine numbers have a prefix before the 6 digits. Like my 75 has a prefix as in 447-108890. The 70-73 years were S650-xxxxxx
Leo
The frame and engine numbers have a prefix before the 6 digits. Like my 75 has a prefix as in 447-108890. The 70-73 years were S650-xxxxxx
Leo
Is it a 77-78 or a 79 model ? the more I look the more confused I become. 
last year my 2F0 US import was identified on here as a 1979 Special ll but I have since seen various conflicting charts stating that it might also be a 1978 E Special ll ?
serial No 2F0-251555
The bike was imported into the UK in 1997 when it was registered and declared manufactured in 1979 (not that that necessarily means anything.)
The bike has covered 18k miles according to the speedo and been upgraded and restored sometime since 1997 so there is no way of knowing how much has been changed on the bike. Although there are some obvious small stuff like regulator, rectifier ,Boyer ignition , clutch plates etc. all the big stuff looks original .
16x 19" wire wheels.
side pivot special style seat
side gas tank filla cap
Mikuni 38mm carbs
last year my 2F0 US import was identified on here as a 1979 Special ll but I have since seen various conflicting charts stating that it might also be a 1978 E Special ll ?
serial No 2F0-251555
The bike was imported into the UK in 1997 when it was registered and declared manufactured in 1979 (not that that necessarily means anything.)
The bike has covered 18k miles according to the speedo and been upgraded and restored sometime since 1997 so there is no way of knowing how much has been changed on the bike. Although there are some obvious small stuff like regulator, rectifier ,Boyer ignition , clutch plates etc. all the big stuff looks original .
16x 19" wire wheels.
side pivot special style seat
side gas tank filla cap
Mikuni 38mm carbs
Attachments
Last edited:
There was no Special II made in '78. That model started in '79. For '78, there was only the normal Special with mags. The '79 Special II was rather unique in that it was the only model to have alloy spoke rims on a Special. The rims were not the flanged type as used on the Standard model but more of a normal rim profile.
thanks 5twins but if there was no Special ll made in 1978 why does the xscafe ID list show XSE 78-79 for my bikes frame number ? is their list wrong ?
Can you make out which rim type my bike has from the images ?
http://thexscafedotcom.wordpress.com/2011/09/29/xs650-model-year-model-code-engine-number/
Can you make out which rim type my bike has from the images ?
http://thexscafedotcom.wordpress.com/2011/09/29/xs650-model-year-model-code-engine-number/
Last edited:
thanks skull 
but now I'm even more confused
the first link shows my bike to be a 1979 SF ? with a code of 2MO ? whatever that means ? and serial No 2F0-250101 up
Yet the later 1980 3G1 bike has a lower serial number in the same 2F0 range ie 2F0-200101
You can see how It can seem confusing to someone unfamilar with these bikes.
What wheels, tank, foot peg brackets and other identifying components should my bike have would you say?
but now I'm even more confused
the first link shows my bike to be a 1979 SF ? with a code of 2MO ? whatever that means ? and serial No 2F0-250101 up
Yet the later 1980 3G1 bike has a lower serial number in the same 2F0 range ie 2F0-200101
You can see how It can seem confusing to someone unfamilar with these bikes.
What wheels, tank, foot peg brackets and other identifying components should my bike have would you say?
On the charts the Code no is often different from the serial no letters/numbers.
Yours does seem to have some discrepancy. Your pics show the 79 Special ll wheels and swing arm. yet your ID no is for a SF
Are you sure your prefix is not 4F0-25**** instead of 2F0-25****
Rims look to be alloy, 79 Special ll
Yamaha might have thought they would sell more Standard 79F's and made sure the numbers wouldn't overlap with the Special 79SF
Yours does seem to have some discrepancy. Your pics show the 79 Special ll wheels and swing arm. yet your ID no is for a SF
Are you sure your prefix is not 4F0-25**** instead of 2F0-25****
Rims look to be alloy, 79 Special ll
Yamaha might have thought they would sell more Standard 79F's and made sure the numbers wouldn't overlap with the Special 79SF
