Hi all, after a busy couple of weeks I managed to spend some time in the garage at the weekend:
Battery voltage: 12.6v
Charging voltage: 14.5v
Spark plugs seem to be the same colour (the rear plug was slightly more oily but not much)
I had a look at the carbs as carb icing had been mentioned but haven't had experience of carb heaters before, I'm guessing this is them?
I checked for a voltage but none was present on either carb (with the ignition on but not with the engine running)
I'm not sure what this is but it had a voltage of 5v present:
Another mystery to me:
Possibly a temperature sensor / thermistor? I couldn't get a resistance reading from it though?
I went through every connector I could find and none looked corroded but I gave them a squirt of contact cleaner and WD40 just in case. I made sure the airbox was fitted correctly on the inlet rubbers and it was well sealed. I did find a ropey solder joint with corroded wires where a replacement regulator / rectifier has been fitted at some point so I replaced it. Took the bike for a ride afterwards and although it behaved for a few miles it started playing up again once I got on the motorway, grrrr! I took it for a thrash around our local roundabout GP circuit and as long as it under hard power it seemed to behave but I can't ride like that everywhere! I am now wondering if it is just one cylinder dropping in and out as it sounds a bit off kilter at tickover so I've ordered some Redex to give that a go. After that I'm thinking of replacing the HT leads / plug caps, is it easy to remove the HT leads from the coils or are they bonded in place? Any ideas / suggestions welcomed!