My 1938 500 Rudge race bike has an original Dirt Track BTH magneto (80+ years old).
I am using a NGK B9EV 14mm long reach plug with a spacer when a short reach one, without spacer, would be better. I now only have one spare plug.
They are now becoming harder to find and via eBay I found B9HVX, which I thought would be suitable replacement and better in terms of reach. Although the item was described as B9HVX and photographed as such, the supplier sent BR9HIX. They were not cheap and I was not happy because although the specification is similar the R in the part number signifies it is a Resitor plug. I returned them and got a refund.
However, after discussing this with Rapcom he thinks the resistor is less of a problem with an iridium electrode.
Is this correct? Can I use an expensive iridium resistor plug with my 80+ year old magneto and not have issues?
I am using a NGK B9EV 14mm long reach plug with a spacer when a short reach one, without spacer, would be better. I now only have one spare plug.
They are now becoming harder to find and via eBay I found B9HVX, which I thought would be suitable replacement and better in terms of reach. Although the item was described as B9HVX and photographed as such, the supplier sent BR9HIX. They were not cheap and I was not happy because although the specification is similar the R in the part number signifies it is a Resitor plug. I returned them and got a refund.
However, after discussing this with Rapcom he thinks the resistor is less of a problem with an iridium electrode.
Is this correct? Can I use an expensive iridium resistor plug with my 80+ year old magneto and not have issues?