yz80 wont start.

[redracing88]

if you pop start it it will like pop a few time but nothing when you kick it and it has spark what could be the problem>?

[Iliketogofast]

Not getting any/enough fuel.

[Ghost-Rider]

Make sure its gettin fuel and check to se if plugs fouled.

[redracing88]

fi we pop start it it will fire up eventually but then when it runs it boggs something fierce.

[abuckley1290]

Is the jetting right? Try taking the bowl off the carb and cleaning everything good and take the main jet out and spray it with cleaner

[bradrenea]

When you get it started does it stay running if you keep it reved and die if you let the engine slow down?
Sounds like it could have a bad piston or rings, maybe even a blown head gasket.
I have had it happen with different two strokes when it is time for a rebuild. I had to pull start them and they would only stay running as long as I kept the RPM's up, would bog and die when the motor was slowed down. If that sounds sounds like what it is doing, do a compresson check.

It could also be a fouled plug. I've had them foul and still start and run at idle, but would bog when reved up. If that is what it is doing replace the plug and see what happens.

[EXevan91]

from my experence with my old yz80 drain that gas and mix up a new batch this time mixed correctly and get a new spark plug that will hopfully fix it and than see what your airfilter looks like also.