Honda-SOHC

Other Stuff => Desperately Seeking!! => Topic started by: fryerk on March 30, 2024, 08:56:59 AM

Title: 500/4 mechanical advanced unit 30220-323-154
Post by: 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

Title: Re: 500/4 mechanical advanced unit 30220-323-154
Post by: Bryanj 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

Title: Re: 500/4 mechanical advanced unit 30220-323-154
Post by: fryerk 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

Title: Re: 500/4 mechanical advanced unit 30220-323-154
Post by: Johnny4428 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?

Title: Re: 500/4 mechanical advanced unit 30220-323-154
Post by: 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.

Title: Re: 500/4 mechanical advanced unit 30220-323-154
Post by: cbxman 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.

Title: Re: 500/4 mechanical advanced unit 30220-323-154
Post by: K2-K6 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.