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Author Topic: 500/4 mechanical advanced unit 30220-323-154  (Read 383 times)

Offline fryerk

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500/4 mechanical advanced unit 30220-323-154
« on: March 30, 2024, 08:56:59 AM »
Hi all I'm looking to convert my 500/4 back to points never been happy with the Boyer unit it came with. Looking for the mechanical advanced unit part number 30220-323-154
Thanks
Kevin
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Offline Bryanj

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Re: 500/4 mechanical advanced unit 30220-323-154
« Reply #1 on: March 30, 2024, 02:58:47 PM »
Recently picked up a 550 thats been stood for a long time, you can have the one off that for £10
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Offline fryerk

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Re: 500/4 mechanical advanced unit 30220-323-154
« Reply #2 on: March 30, 2024, 03:36:53 PM »
Hi Bryan that would be perfect could I have the bolt that holds it in place as well. I'll pm you
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Offline Johnny4428

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Re: 500/4 mechanical advanced unit 30220-323-154
« Reply #3 on: March 30, 2024, 08:05:35 PM »
Quote from: fryerk on March 30, 2024, 08:56:59 AM
Hi all I'm looking to convert my 500/4 back to points never been happy with the Boyer unit it came with. Looking for the mechanical advanced unit part number 30220-323-154
Thanks
Kevin
Hi Kevin, are you sure the ignition is at fault or is it process of elimination?
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1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1. Running resto,
1978 Honda CB550K3.
1999 ST1100 Pan European 50th Anniversary.
1975,1980,1984,1986 Honda C90’s
1973 Honda CB750K3

Offline fryerk

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Re: 500/4 mechanical advanced unit 30220-323-154
« Reply #4 on: April 02, 2024, 02:18:36 PM »
Ive never been 100% happy with the Boyer its very voltage sensitive so I need to keep the bike on a trickle charge. Id like to go back to points to compare.
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Offline cbxman

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Re: 500/4 mechanical advanced unit 30220-323-154
« Reply #5 on: April 02, 2024, 07:08:57 PM »
Quote from: fryerk on April 02, 2024, 02:18:36 PM
Ive never been 100% happy with the Boyer its very voltage sensitive so I need to keep the bike on a trickle charge. Id like to go back to points to compare.

Hi have Dyna on my CB750 K1.  It was very unstable and would misfire sometimes and this I understand was a common issue with these.  The installation instructions specified connecting the Dyna +12v Feed onto the ignition switched 12v leads on the coils.  However I found through experimentation that the 12v ignition feed that is accessible under the seat (for indicators etc. was a better place to connect.  It runs without any issues now

Unsurprisingly really as the voltage spikes on the 12v coil terminal would play havoc with the Dyna. 

Worth a try before you bin the Boyer.
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CB750 K1 1971 Wisconsin, USA
Suzuki GT550 J 1972 Michigan USA
CB360 G5 1975 UK
CBX1000 A 1980 (European Direct Sales)
CB1300 A5, 2005 UK

Offline K2-K6

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Re: 500/4 mechanical advanced unit 30220-323-154
« Reply #6 on: April 03, 2024, 02:17:43 PM »
The supply to any electronic ignition could be wired direct to battery for the loaded circuit

With something like this https://www.12voltplanet.co.uk/standard-mini-make-break-relay-normally-open-no-contacts-12v-20a-with-fuse.html 12v relay incorporating it's own dedicated fuse as protection for that circuit only.

This would then only be triggered by switch on of ignition key, with fully independent direct supply to handle ignition system load autonomously.
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