Mikunis back on and roughly clankerated (slides clank down simultaneously) enough to start. The standby battery is mullered so the fire wouldn't light, but a fresh battery sorted that and all the kicking over with the dead one certainly brought a willingness to wake up.
Amusingly, it started fine with no choke, and the old coal-fired locomotive smell re-inforced my suspicion that it's simply far too rich - confirmed by the gust of black soot when the throttle is blipped.
However, when warmed up it settled down nicely to a mild tickover at 800rpm, both cylinders pulling their weight, if not quite evenly. Exhaust pipe IR readings reveal the LH cylinder is over-fuelled or the RH one under-fuelled - a difference of 30degC. I don't trust this IR thermometer to give anywhere near accurate readings in that range, as it's way over what it's supposed to do, but the difference is repeatable, so likely reliable as an indicator.
Tomorrow, more fiddling.
Amusingly, it started fine with no choke, and the old coal-fired locomotive smell re-inforced my suspicion that it's simply far too rich - confirmed by the gust of black soot when the throttle is blipped.
However, when warmed up it settled down nicely to a mild tickover at 800rpm, both cylinders pulling their weight, if not quite evenly. Exhaust pipe IR readings reveal the LH cylinder is over-fuelled or the RH one under-fuelled - a difference of 30degC. I don't trust this IR thermometer to give anywhere near accurate readings in that range, as it's way over what it's supposed to do, but the difference is repeatable, so likely reliable as an indicator.
Tomorrow, more fiddling.
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