Dtr 125 will not start

[pitracer1979]

Hi guys, since my last thread I haven’t had time to work on the bike.
I have got a spark but will not fire, I’ve tried putting fuel down the spark plug hole but still won’t start, any ideas

[Calum]

Poor compression? Is the engine damaged.

Is the spark erratic.

[pitracer1979]

Just had new piston rings and rebore.new spark plug
Spark seems ok

[declan]

@pitracer1979 do you have your air box on with all joints connected to the carb nice and tight?

[oldman]

Is it a new plug? Drain the carb and check fuel is it the carb