Re: Poor starting from cold
Posted: 01 Mar 2020 17:25
Update 2: it wasn't the carb. It was fuel starvation!
It turns out the fuel intake at the bottom of the tank was blocked with crud. I hadn't realised because the bike was running fine - until I took it out yesterday and it coughed to a halt.
I had to nurse it home on one (very starved!) cylinder...
Anyway, it's all cleaned up and working properly now. I assume the difficult starting was due to low fuel level in the float chamber shortly after turning the ignition on: fuel flow was so restricted there mustn't have been enough fuel for the choke to work.
It turns out the fuel intake at the bottom of the tank was blocked with crud. I hadn't realised because the bike was running fine - until I took it out yesterday and it coughed to a halt.
I had to nurse it home on one (very starved!) cylinder...Anyway, it's all cleaned up and working properly now. I assume the difficult starting was due to low fuel level in the float chamber shortly after turning the ignition on: fuel flow was so restricted there mustn't have been enough fuel for the choke to work.