Author Topic: 650 engine year please!  (Read 1282 times)

Offline BeatsBreaks

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650 engine year please!
« on: July 20, 2022, 06:08:19 PM »
Hi all...

I've a 650 engine but in struggling to find year of it...

RC03E 2123818 is the number, anyone help - I've seen this page but not sure I understand it correctly - http://www.sohc4.com/cb550/cb650/

Thanks in advance!
1978 Honda CB550
1993 Honda VFR400
1996 Suzuki GN125 Tracker

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: 650 engine year please!
« Reply #1 on: July 20, 2022, 06:15:39 PM »
Is it a UK model or a USA import?. Is your VIN number the format of the 1st on that list or the 4th on that list?
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Oddjob

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Re: 650 engine year please!
« Reply #2 on: July 20, 2022, 07:52:51 PM »
According to the page it's a 79. The 80 started with a different prefix on the engine number.

Scrub that, looking at the frame number, it's looks like an 80 SC model.
« Last Edit: July 20, 2022, 07:54:32 PM by Oddjob »
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Accidents in the back seat cause kids.

Offline BeatsBreaks

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Re: 650 engine year please!
« Reply #3 on: July 20, 2022, 08:22:17 PM »
Is it a UK model or a USA import?. Is your VIN number the format of the 1st on that list or the 4th on that list?

Its on a 550 frame!! so no idea if USA or UK

Thx
1978 Honda CB550
1993 Honda VFR400
1996 Suzuki GN125 Tracker

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: 650 engine year please!
« Reply #4 on: July 20, 2022, 08:31:48 PM »
Is it a UK model or a USA import?. Is your VIN number the format of the 1st on that list or the 4th on that list?

Its on a 550 frame!! so no idea if USA or UK

Thx
No idea then, sorry.
« Last Edit: July 20, 2022, 08:33:37 PM by Nurse Julie »
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline davefirestorm

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Re: 650 engine year please!
« Reply #5 on: July 21, 2022, 07:02:21 AM »
I’ve just bought one of these sohc 650s ( not collected it yet ) it only has 1 front brake disc and speedo in kilometers I’m guessing it’s a Canadian import? Haven’t got the engine/frame numbers yet
Honda CB650Z
Honda F6C Valkyrie

Offline BeatsBreaks

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Re: 650 engine year please!
« Reply #6 on: July 21, 2022, 05:39:46 PM »
Is it a UK model or a USA import?. Is your VIN number the format of the 1st on that list or the 4th on that list?

Its on a 550 frame!! so no idea if USA or UK

Thx
No idea then, sorry.

No worries :)
1978 Honda CB550
1993 Honda VFR400
1996 Suzuki GN125 Tracker

Offline SteveW

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Re: 650 engine year please!
« Reply #7 on: July 21, 2022, 10:02:14 PM »
My 650 custom, got it on the road in March.
1974 CB550 K0
1980 CB650
2000 CBR929RR Fireblade
1966 Lambretta LI150 Series 3
1981 RD350LC
1972 Raleigh Chopper
1974 Raleigh Tomahawk
2011 Henry Hoover

Offline NICKYBOY

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Re: 650 engine year please!
« Reply #8 on: November 17, 2022, 02:48:28 PM »
Lovely job, mint. What carbs are they ?

Offline SteveW

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Re: 650 engine year please!
« Reply #9 on: November 17, 2022, 03:00:03 PM »
PD50, they were a nightmare to get running right but they are ok now.

I bought a set of VB44’s to go on but they don’t fit as the later 650’s from 1981 had different head spacing.
1974 CB550 K0
1980 CB650
2000 CBR929RR Fireblade
1966 Lambretta LI150 Series 3
1981 RD350LC
1972 Raleigh Chopper
1974 Raleigh Tomahawk
2011 Henry Hoover

Offline andy120t

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Re: 650 engine year please!
« Reply #10 on: November 17, 2022, 03:16:56 PM »
I found some Gpz600 ones which fit and apparently work well - according to the US forum. Just never had it running on them!
andy120t

CB550f/k
Zephyr 550
ZX6R G1
GSXR 7/11 - I need to sell it
Triumph 5TA - and this..

Offline NICKYBOY

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Re: 650 engine year please!
« Reply #11 on: November 17, 2022, 04:49:11 PM »
What year/ model GPZ 600 are they from. I cant seem to find any with correct spacings !

Offline SteveW

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Re: 650 engine year please!
« Reply #12 on: November 17, 2022, 05:19:06 PM »
What year/ model GPZ 600 are they from. I cant seem to find any with correct spacings !

They won’t line up, you have to use the original GPZ carb rubbers as they are staggered.
1974 CB550 K0
1980 CB650
2000 CBR929RR Fireblade
1966 Lambretta LI150 Series 3
1981 RD350LC
1972 Raleigh Chopper
1974 Raleigh Tomahawk
2011 Henry Hoover

Offline NICKYBOY

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Re: 650 engine year please!
« Reply #13 on: November 17, 2022, 06:05:54 PM »
Ah right cheers

 

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