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CB350/400 / Re: CB400F2 speedometer face plate
« Last post by AshimotoK0 on May 21, 2024, 11:56:46 PM »
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37200-377-721  dual-scale ....So possibly changeover was 1078880  .. crap copy from a microfiche though.
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Project Board / Re: Project CB350F
« Last post by magpie114 on May 21, 2024, 09:51:34 PM »
I’ve been scratching my head over the ignition timing. Just couldn’t make sense of it, going round in circles trying to find what I’d done wrong. Almost like the advancer was 180 degrees out, but didn’t think it could be as there’s a locating peg. Then a quick search on here confirmed that the cam could be reassembled incorrectly. Images of the advancer online show the mark on the rim facing the semi circular alignment notch whereas mine faces away.

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My efforts to free up the original f/brake master cylinder, which was gummed up and is still stuck fast, have so far been unsuccessful. I’ve cleaned it externally and soaked it in penetrating oil but had no joy. As I’m unsure whether it will be too badly corroded if I do eventually manage to free it I got a good master cylinder without internals from 400fourbits and used the repair kit I got for the original.

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I’m still searching for a lower German or French handlebars so I’m reluctant to get throttle cables and the top brake hose until I’ve exhausted all avenues and know which bars I’ll be using.
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CB350/400 / Re: CB400F2 speedometer face plate
« Last post by Laverda Dave on May 21, 2024, 09:27:16 PM »
Here you go George, I asked a similar question previously.
https://www.sohc.co.uk/index.php/topic,30014.0.html
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SOHC Singles & Twins / Re: Head gasket
« Last post by shifter on May 21, 2024, 09:08:30 PM »
 Ha ha Bribery  comes to mind , as that went down like lead balloon, I'll have try harder, it's food for thought Bryan thankyou for the Tip ..
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SOHC Singles & Twins / Re: Head gasket
« Last post by Bryanj on May 21, 2024, 08:58:44 PM »
Instead of using a torch put it on the hob when the boss isnt looking
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SOHC Singles & Twins / Re: Head gasket
« Last post by shifter on May 21, 2024, 08:29:59 PM »
Yes Bryan thoughts are the same as its  thin as tin foil, having  to wait for a replacement from the states as DS supplied one damaged from same place, will have sleep on it eh ...thanks for your input ..
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The Black Bomber Board / Re: 67` Bomber running problems
« Last post by Bryanj on May 21, 2024, 07:42:32 PM »
6000 is no where near the red line and dont think its anywhere near the 85% i would cruise at, cameras permitting!
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SOHC Singles & Twins / Re: Head gasket
« Last post by Bryanj on May 21, 2024, 07:40:08 PM »
No always anneal, just be carefull not to melt it!
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SOHC Singles & Twins / Re: Head gasket
« Last post by shifter on May 21, 2024, 07:27:50 PM »
Yes Bryan there is a  very thin copper gasket not like the old brit bikes , it's so thin I'm wondering if it's soft enough not to anneal
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SOHC Singles & Twins / Re: Head gasket
« Last post by taysidedragon on May 21, 2024, 07:24:08 PM »
Pure copper gasket, yes. Annealing it softens it so seals better when head bolted down.
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