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Author Topic: 500 550  (Read 1220 times)

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: 500 550
« Reply #15 on: April 18, 2020, 07:33:02 PM »
So your engine is a CB500 K1
And your frame a CB550 F3 (sorry, I typed K4 previously)
The E and the F after the numbers just mean Engine and Frame.
« Last Edit: April 18, 2020, 07:39:16 PM by Nurse Julie »
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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 simonc

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Re: 500 550
« Reply #16 on: April 18, 2020, 07:39:32 PM »
thanks for that info much appreciated :)
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one job leads to another
cb72 1964
cb550f1 1976
cb550f1 1976
cb550 1977 with cb 500k engine

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: 500 550
« Reply #17 on: April 18, 2020, 07:40:58 PM »
Quote from: simonc on April 18, 2020, 07:39:32 PM
thanks for that info much appreciated :)
No problem, at least now you know for sure which models to order parts for both the frame and engine.
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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 Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
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  • Posts: 8231
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Re: 500 550
« Reply #18 on: April 18, 2020, 08:07:44 PM »
I should have added for anyone else that may look at this thread in the future, these engine and frame numbers relate to USA models ONLY. They have no bearing whatsoever with original UK model bikes as we have totally different models with totally different engine and frame numbers.
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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 matthewmosse

  • SOHC Master
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Re: 500 550
« Reply #19 on: April 18, 2020, 09:45:19 PM »
I have swapped and changed cb500 and 550 motors about between bikes with relative impunity regards electricals. No issues I can recall. Carbs can be a pitfall to swap about if you dont like jetting but that's part of living with a bitsa bike, seems restoration to original has similar issues.
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Got a 500/4 with rust and a sidecar and loadsa bits. nice and original and been round the clock

Offline simonc

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Re: 500 550
« Reply #20 on: April 18, 2020, 10:25:18 PM »
Cheers I have already stripped cleaned re jetted bigger set float heights. will decide later on final jetting new exhaust req
no real plan with this one. resprayed tank as a change from mechanical work, also restoring cb 72 super hawk so plenty to do ;)
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one job leads to another
cb72 1964
cb550f1 1976
cb550f1 1976
cb550 1977 with cb 500k engine
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