08-04-24, 11:06 AM
Your plug caps will give trouble long before the Coils ever will.Thankfully the caps can be dismantled and cleaned out. The biggest issue is the carbon resistors which can go faulty taking the resistance up to Meg Ohms which cause the caps to track on the outside and can be seen clearly at night.
I like the look of the original caps and usually buy a cheap set of NGK caps and break them open and use the resistor as it has a stainless outer wire wound resistor and will usually last as long s the coils.When dismantling the originals there is a tiny brass spacer which is usually corroded and breaks if you look at it the wrong way,
but can be discarded when using the NGK resistor. The spring should fall out but may be corroded and stuck. Inside the cap there is a flat brass part which is part of the screw which needs to be cleaned usually scratched clean with a sharpened screwdriver. Clean the spring and reassemble. Use Dielectric grease on the boots and all will be well for years.
On the carb front it is as you said most likely the pilot jets. I gave up trying to clean them and now replace them. The reason being that the internal of the pilot jet has a web type structure which is virtually impossible to clean properly.Replace the O-rings on the float valve and main jet with Viton/FKM or FFKM ones and it will save taking them apart for a while again. Sizes are in the download section https://foc-u.co.uk/index.php?action=dow...ew;down=93
I like the look of the original caps and usually buy a cheap set of NGK caps and break them open and use the resistor as it has a stainless outer wire wound resistor and will usually last as long s the coils.When dismantling the originals there is a tiny brass spacer which is usually corroded and breaks if you look at it the wrong way,
but can be discarded when using the NGK resistor. The spring should fall out but may be corroded and stuck. Inside the cap there is a flat brass part which is part of the screw which needs to be cleaned usually scratched clean with a sharpened screwdriver. Clean the spring and reassemble. Use Dielectric grease on the boots and all will be well for years.On the carb front it is as you said most likely the pilot jets. I gave up trying to clean them and now replace them. The reason being that the internal of the pilot jet has a web type structure which is virtually impossible to clean properly.Replace the O-rings on the float valve and main jet with Viton/FKM or FFKM ones and it will save taking them apart for a while again. Sizes are in the download section https://foc-u.co.uk/index.php?action=dow...ew;down=93