Apart from trying to break my leg she has always started but recently she won’t ? The plug is dry which is confusing I’ve pulled the carb and it’s pretty much spotless so why the dry plug ? Plenty of fuel in carb bowl but she only fires every now and again I cannot understand why no wet plug ? When she does run she runs great
I tried full throttle tonight and she started right up, I guess that points to the idle jet/circuit but all seemed good when I checked it the other week ?....when she starts she will tickover fine...weird unless there simply isnt enough fuel being drawn up under kicking but enough when running....don't help my knee all this grief lol.

Pilot jet dirty?

If I hadn’t pulled the carb 2 weeks ago I would think the same but it should be spotless ? I’ll have a look again but thinking it’s something else like a bad seal within the carb ? 

Check the starter jet in the bottom of the float bowl is clear .

As mentioned it was checked recently and when she starts she ticks over fine which would rule out a blocked pilot jet ?
 

Evening Simon.

I might have misunderstood some of the posts here, but the jet in the float bowl that Swoop is referring to is not the pilot jet, it is for the choke. I've cleared some of mine out with carb cleaner and 0.4mm copper wire.

You say started on full throttle, which has me thinking maybe it was flooded up in the first place. Doesn't account for dry plug though.

Thanks guys, I just think there is no fuel getting through even without the choke working the plug should get wet from kicking over....but no bone dry and just the odd fire from her. I'll pull the carb tomorrow morning and have another good look. But before I do I'll try the full throttle startup...if no good I'll double check the pilot jet but it was all clear and used compressor and carb cleaner on the passages.

It could just be "one of those things". I've had bikes occasionally not want to start and then once they do they are fine after that. Never do figure out what the problem was... usually happens after sitting a few days.

And if plug is actually wet with fuel, it's likely flooded.

I use a spray bottle filled with premix and spray in the carb body while kicking to try to determine if it’s a carb issue or something else. I’m not sure if a popped crank seal would remove the vacuum to the point that fuel would not pull from the carb. I’ll let the experts answer that question.