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Messages - SteveD CB500K0

Pages: [1] 2 3 ... 198
1
Other Bikes / Re: Pick this up in the morning
« on: Today at 07:06:20 PM »
How old is he Mark?

I’m going to leave that picture out for my son


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2
CB500/550 / Spark plugs
« on: Today at 09:23:38 AM »
Love how the “D” in R&D gets turned into a smiley


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3
CB500/550 / Re: Spark plugs
« on: Today at 09:17:17 AM »
Basic electronics Delta.

The spark plug acts like a capacitor. Put a resistor in series and you get a low pass filter (low frequencies get through).

This has the effect of rounding off the sharp “attack” edge of the voltage pulse to the plug, softening and lengthening it.

The high frequency interference is caused by the sharp attack edge of the pulse, so soften it and you get less interference.

The shaping of the spark pulse helps the fuel burn (as long as the combustion chambers are designed to use it).

But I’m an electronics engineer not a mechanical so my knowledge stops there!


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4
CB500/550 / Re: Spark plugs
« on: April 19, 2019, 07:34:48 PM »
Of course, resistor plugs/caps were required in the 70s because the ignition systems broadcasted in the FM frequency band (98-108 MHz).

Nowadays nobody broadcasts there (not that we care about anyway)

Our bikes would have to be nuclear powered to interfere with DAB or 3G/4G bands


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5
CB500/550 / Re: Fork Rechroming
« on: April 18, 2019, 10:22:25 AM »
Quote from: Oddjob on April 18, 2019, 09:39:40 AM
it's self lubricating which is good for seal life.

Serious question.

How does that work (metallurgically) ?


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6
Project Board / Re: CB400 Four special (Mr Sinx II )
« on: April 14, 2019, 12:20:04 PM »
Plus select “Inline image” from the drop down menu.

Sorry - can’t make it the default


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7
Project Board / Re: CB400 Four special (Mr Sinx II )
« on: April 14, 2019, 12:19:03 PM »
The limit is to save disk space on the server.

A 1Mb image is just as good as a 10Mb image for a forum.

Steve


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8
Member 4 Sales / Re: Front Tyre - Battlax BT45F 100/90. Honda 400 4
« on: April 13, 2019, 06:32:41 AM »
Put your location in your profile.

Always helps

Steve


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9
CB350/400 / Re: Head + Rocker cover torques...
« on: April 09, 2019, 05:20:13 PM »
But we all use cc do t we Bryan?

498cc is just over 30 cubic inches. Wouldn’t fit on the side panel would it.


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10
Misc / Open / Re: London's new ULEZ zone dodged!
« on: April 05, 2019, 06:31:44 AM »
Me neither.


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11
Misc / Open / Re: London's new ULEZ zone dodged!
« on: April 04, 2019, 07:21:16 PM »
I’m still a mod on the .net site.

OK they have 10x as many members as us, but

Religion
Politics
Guns


... drives me nuts.


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12
Misc / Open / Re: London's new ULEZ zone dodged!
« on: April 04, 2019, 05:23:18 PM »
#@%$ now in the censored words list.




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13
CB750 / Re: Mirrors to see behind a fat guy
« on: April 03, 2019, 08:56:04 PM »
Or a caravan


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14
Site Feedback / FAQ / How to... / Re: log in
« on: April 03, 2019, 07:15:00 PM »
It’s true that I don’t have a security certificate on this site.  Mainly because of the cost.

That doesn’t mean that we are a dodgy lot though - just insecure


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15
Site Feedback / FAQ / How to... / Re: log in
« on: April 03, 2019, 05:40:32 PM »
I’ve never seen this before.

Might try logging in as you to see.

Steve


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