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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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My box contained three different sets of bags this Grommet was in the bag in this photo top left.

.unboxed 4 by Macabe Thiele, on Flickr
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CB500/550 / Re: Side stand too close to the number one front pipe issue ?
« Last post by Nurse Julie on May 14, 2024, 09:46:05 PM »
In the sealed bag with all the brackets & fittings was this Grommet.

Could it be an item used on different models that the exhuast also fits so it replaces the square one in silencer pipe two?

Exhibit 1 by Macabe Thiele, on Flickr
Nope, never had that bit in the box Ted, everything that was in with the exhausts is in the photo above. I wonder what that is 🤔🤔🤔🤔🤔
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CB350/400 / Re: rotor removal tool. Also Gaskets
« Last post by Eldrick on May 14, 2024, 09:23:12 PM »
Did you check the ohm-readings on the 3 stator wires? That will tell you something. The regulator is more likely to fail...
I will google how to do that
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In the sealed bag with all the brackets & fittings was this Grommet.

Could it be an item used on different models that the exhuast also fits so it replaces the square one in silencer pipe two?

Exhibit 1 by Macabe Thiele, on Flickr
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CB350/400 / Re: Replace Kickstart shaft
« Last post by Bryanj on May 14, 2024, 08:55:51 PM »
To do it right and making sure all the bits are fitted correctly you should remove lower crankcase.
Kickstart knuckles are like chromed rocking horse poo to find
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I will Bryan, at the moment the yellow & blue wires from the points are disconnected . it's not connected as I used the test lamp method to do static timing.
I intend to find tune that before I try first start up.
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CB350/400 / Re: rotor removal tool. Also Gaskets
« Last post by Bryanj on May 14, 2024, 08:53:56 PM »
The least common no charge is the generator,
Most common is bad connection
Next is regulator, especially electronic ones
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