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Project Board / Re: Mike's CB550 Project
« Last post by Mike_Berkshire on Today at 01:56:34 PM »
So de-carbonising the inlet valves was easy. The exhaust valves less so. The deposits on the valve face & stem are like concrete. I am assuming this is normal (?) Are there recommended ways of removing the deposits from the exhaust valves? As the crust is so hard Im worried about damaging the valves. I have been using a Dremel clone with softish Scotchbrite mini-mops.
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Project Board / Re: Mike's CB550 Project
« Last post by Mike_Berkshire on Today at 01:52:37 PM »
Quote from: Bryanj on Today at 12:56:53 PM
PM me your address and i will send you a used one
Thank you so much Bryan. I have sent you a PM.
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Misc / Open / Re: It's been a Shite yesr
« Last post by Johnwebley on Today at 01:43:20 PM »
Bryan, if its any consolation,

You engine building skills are top class,

So best wishes, and many thanks

Hopefully it may help you feel better,



Sent from my SM-A546E using Tapatalk

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Misc / Open / Re: It's been a Shite yesr
« Last post by paul G on Today at 01:31:04 PM »
That is an awful lot to put up with Brian.
Hope there are better times around the corner for you all.
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Misc / Open / Re: It's been a Shite yesr
« Last post by Athame57 on Today at 01:25:24 PM »
That is an awful lot of grief to take Bryan, I really feel for you.
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Misc / Open / It's been a Shite yesr
« Last post by Bryanj on Today at 01:13:02 PM »
Some of you have expressed condolances for the loss of my sister and to those thank you deeply, this is just the latest thing.
Late last year i had to give in to the shoulder arther and swop from driving to siting in security hut, substantial pay cut but still earning.
January 16th(my birthday) my brother in law died unexpectedly at the age of 88 having been married to my sister for 69 years.
Then my sister was hospitalised with heart valve problem and passed on April 24th(3 days after my weeding aniversary).

I feel for my two nephews and their 29 year old kids who were raised a lot by their gran, my sister, as they have lost doth dad(grandad) and mum(gran) within 3 months.
As the 71 yr old yougest of 5 with 2 now gone it feels like that cliff we all fall of is getting closer all the time.

My best to all on the forum and appologies for the grumps

Bryam
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Project Board / Re: Mike's CB550 Project
« Last post by Bryanj on Today at 12:56:53 PM »
PM me your address and i will send you a used one
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Project Board / Re: Mike's CB550 Project
« Last post by McCabe-Thiele (Ted) on Today at 12:26:52 PM »
I had a similar damaged valve on my 400 exhaust valve - just the one like you.

I found a good used valve that (Steve at 400fourbits) I did not need to have refaced so it was an inexpensive fix.
I was able to do a normal had grind presumably as it was a standard factory cut valve.
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Project Board / Mike's CB550 Project
« Last post by Mike_Berkshire on Today at 11:47:04 AM »
Thanks all so far with the help in my initial steps with this project: rebuilding the carbs to get the bike running pre-stripdown, removal of the stuck rocker cover, knocking out the shock mounts from the swinging arm, removal of the steering races and identification of mystery parts along the way. The bike is now stripped down apart from the bottom end which Im intending to leave intact and, so far the wheels are still 'bearings in'. The first outside job of repainting the frame, swinging arm and various other brackets etc should start tomorrow.

Whilst Im waiting for the frame painting I am getting on with the head. All valves etc are out, the head is decarboned and Im now decarboning the valves pre to lapping them in. Whilst working on the inlet valve for #2 cyclinder I can see there is damage/an imperfection in the valve face (see picture). Should this valve be replaced with a new one and if so is it OK to replace one valve only? I have checked piston #2 and there is no sign of any impact damage on the piston. Also there is a single valve collet hiding somehwere on the floor of the shed which Im hoping to find but is so far proving elusive. Thanks, Mike
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CB350/400 / Re: Replace Kickstart shaft
« Last post by taysidedragon on Today at 12:00:13 AM »
First thing to do is remove the kickstart lever from the shaft and inspect the splines. You will quickly tell if the splines are worn on the shaft or the lever knuckle.
If the kickstart lever is u/s a replacement will be hard to find. CB350F levers are slightly different but fit and are easier to find.
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