OT magneto update

[RICHARD YAMANE]

My BSA is running again. Just to refresh, I have been running a BTH magneto with external coils, replacing the stock Lucas unit. It appears that the coils were rubbing the bottom of the fuel tank, leaving a couple of small bare spots and putting flat spots on the coil housings. I put my coil mount in the mill and redid everything to lower the coils as far as possible. It dropped them down about 1/2”. I also cut rubber bands from a bicycle inner tube and put them on the coils for an extra layer of insulation. Spark returned and the engine is making rumbly noises again.

Rick Yamane
Importer of Vape/Powerdynamo ignition systems and Polisher of bikes at Motion Pro

[jef walker]

Hi everyone,

I am trying to set up the clutch on my 1953 Airone sport.

The manual is a bit confusing.

I would like to know:

1. How much should I compress the springs on the right side.

2. How much should I screw in the pushrod.

3. Does anyone have a picture of the right side of the pushrod without the ball bearing assembly.

I have a brand new bearing assembly for the right side of the pushrod but it won't fit. I think there is something on my pushrod that should not be there. I am reluctant to remove this piece in case I damage the pushrod, hence I need a good photo of what it should look like without the bearing assembly.

I would be grateful for any help.

Thanks 

Jef Walker UK.

Sent from Outlook for Android

---

From: 'RICHARD YAMANE' via Guzzi Singles <guzzi-...@googlegroups.com>
Sent: Wednesday, May 21, 2025 5:00:40 AM
To: guzzi-...@googlegroups.com <guzzi-...@googlegroups.com>
Subject: [guzzi-singles] OT magneto update

 

My BSA is running again. Just to refresh, I have been running a BTH magneto with external coils, replacing the stock Lucas unit. It appears that the coils were rubbing the bottom of the fuel tank, leaving a couple of small bare spots and putting flat spots on the coil housings. I put my coil mount in the mill and redid everything to lower the coils as far as possible. It dropped them down about 1/2”. I also cut rubber bands from a bicycle inner tube and put them on the coils for an extra layer of insulation. Spark returned and the engine is making rumbly noises again.

Rick Yamane
Importer of Vape/Powerdynamo ignition systems and Polisher of bikes at Motion Pro

--
You received this message because you are subscribed to the Google Groups "Guzzi Singles" group.
To unsubscribe from this group and stop receiving emails from it, send an email to guzzi-single...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/guzzi-singles/1657965315.362103.1747800041297%40connect.xfinity.com.

[Alan Comfort]

Coils need to dissipate heat. I wonder if insulating them will have an impact on their life expectancy.

--

[RICHARD YAMANE]

These coils are modern, plastic housed and potted in epoxy or resin. The rubber bands I cut are only 1/4-5/16” wide. Just enough to cover and slightly overlap the worn spots. A photo of the coil attached.

Rick Yamane
Importer of Vape/Powerdynamo ignition systems and Polisher of bikes at Motion Pro

To view this discussion visit https://groups.google.com/d/msgid/guzzi-singles/CAC8DhY2S5vQOhw7E2ySxs8AmyDXMHXa7e-eB3C7FW4u20XOtuw%40mail.gmail.com.