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New Member Introductions / Re: New to the forum
« Last post by Laverda Dave on Today at 04:21:35 PM »
Welcome to the forum.
As Ian has previoulsy mentioned what fuel were you using last summer prior to the trouble? These old bikes like only the very best in terms of fuel, i.e expensive V-Power or suchlike. If you used bog standard supermarket fuel and left it sitting for a while it will probably have gone off especially in the carb bowls making it very hard if not impossible to start the next time you want to use it.
Do you know anything about its previous history, hjad it been rebuilt at any point etc? If it had been sitting around for a while prior to you buying it the carbs could have become blocked in the pilot jet circuits.  Before taking the carbs off though go through as much of the bike as you can such as checking the plugs actually all fire and are clean (and are any sooty indicating a rich mixture. Is the choke working correctly with the correct settings? Check the ignition timing as well and if still on points check the gaps and condensors. I suspect you may be taking the carbs off to give them a good overhaul and clean in an ultrasonic bath.  It's all fun and you'll get to know the bike and they are easy to work on.
Good Luck :)
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LOL only too true. ;D ;D ;D
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New Member Introductions / Re: New to the forum
« Last post by Orcade-Ian on Today at 02:31:58 PM »
Hello and welcome to the forum,
Were you actually running it when it started to play up?  How did it manifest itself? Down on a couple of cylinders? Cut out completely? Or had you put it away and left it?  As the others will no doubt say, if it had some sort of fault and then two different garages had a look, it might now have more than the original fault!  Don't despair though, there are plenty on here to help.  I'm not a 750 man but plenty are, so help will no doubt come.  You say carbs but do you have good recent fresh fuel in now?  Is there a spark? I think Ash may have posted a good flow chart for fault finding, rather than just checking random areas.

Many others will soon chime in with suggestions,
Ian

 
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CB350/400 / Re: Engine rebuild Parts list
« Last post by Dolomite_ on Today at 02:27:33 PM »
Here you go, this is where I bought mine. Very quick delivery as well.
https://www.ebay.co.uk/itm/264575277700?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=J-zL353uSQe&sssrc=4429486&ssuid=5XpGce3OSuS&var=&widget_ver=artemis&media=COPY

Thats the size I originally used. Ted recommended going smaller to 0.025 to 0.076 mm. Which only seem to be sold in bigger quantities or are from the US. Luckily Ted had some spare which he kindly sold to me.

Working through measuring them now, got 3/4 of the way and my electric ratched went flat. I don't fancy fully tightening and undoing 10 bolts over a dozen times each :D
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Misc / Open / Re: How do you decide it's time to buy a new bike
« Last post by martin_uk on Today at 02:25:42 PM »
There is a formula for working out the perfect number of bikes to own.

Current number of bikes owned +1  :)
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Project Board / Re: Project CB350F
« Last post by magpie114 on Today at 02:23:57 PM »
The before & after photos of the electrics behind the side panel look inpressive - all those now homeless Arachnids good work!
Just spotted a mistake though, I’ve fitted the black regulator cover the wrong way!


Sent from my iPhone using Tapatalk
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New Member Introductions / Re: New to the forum
« Last post by Athame57 on Today at 02:16:55 PM »
Hello Harriec
Welcome here, you have certainly found the right place for a new owner. Don't panic over your problems, there is always a solution.
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New Member Introductions / New to the forum
« Last post by Harriec on Today at 02:08:35 PM »
Hi Guys,

Just thought I would introduce myself. I bought a CB70 F2 supersport a few years ago...I have now joined the forum as its letting me down and I can't get my head around the carbs so I thought I would tap into the wealth of knowledge that will be on here! I am based in Sussex so if anyone knows someone that likes to tinker with F2 carbs this way then please raise your hand! I was loving the bike until the end of last summer when it started to run like a bag of nails...now I can't even get it started! Two trips to two different garages (and about £600 later) and its still not running! Anyway...rain has stopped play today as I work outside...so im off to tinker with it and probably get more frustrated! :-\
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Humour / Re: Electric vehicles
« Last post by paul G on Today at 12:10:15 PM »
12 bore cures that!
Is that for the cow or the milk man  ;D
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Desperately Seeking!! / Re: Honda CB250 or CB360 G5 Wanted
« Last post by florence on Today at 11:56:33 AM »


My friend Graham Curtis rebuilds Honda pressed together cranks  inc. CB250/350K. He rebuilt my CB450K0, CB72 & S90 crankshafts.
[/quote]

That is very good to know Ash.  I had always been advised by my engineer that it was not possible.  Thanks very much.
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