Yahmaha gt 80 wont kick start and when push started the bike dies

Hi Kerry it sounds to me like a bad connection on your starter relay, or the relay needs replacing. good luck

This maybe a transmission or engine locked up.

Hey Kenneth,
Sounds like the carburetor needs a Qualified Professional to clean and set it.. check the compression, it should be >120PSI., if not..fix it..
once you HAVE done this... it should run fine...

CLEAN YOUR CARB OUT AND SET YOUR NEEDLE VALUE THAT SHOULD DO IT

Assuming the bike runs well and this is just a kicking technique problem.
push the kick starter slowly until you get to the hard spot(TDC), pull the decomp lever, and push the kicker a little to get past top dead centre, then release decomp and give it a decent kick, should never kick back

For a cold start, turn fuel on at fuel tap. Pull out the choke knob. slowly kick the kickstarter until you feel it become harder(more resistance). push past this resistance then release the kickstarter. What you have done is put the piston in the position just after top dead centre of the compression stroke.Now give it a big kick whilst opening the throttle slightly. There is a real techneque to it so don't think your the only one who has problems! Otherwise, ask your local Yammy dealer for a look at the owners manual. It has a description on how to both hot & cold start your bike. They may let you photocopy it. Good luck.
If it just isn't happening try removing the sparkplug,put it back in the plug cap,rest the plugs metal body on the cylinder head (don't hold it there or you could get a nasty shock) Now kick the kickstarter while watching the sparkplug gap. Did it spark? If it didn't theres a problem. No spark means it wont run! Then you'll need to find out why theres no spark. Hope this helps to get you started Otherwise let us know and i'll se what else I can suggest.

If they where to tight it would not start when cold, and get easier when warm. I would look at overheating check oil/coolant levels.

sound like your carburator is dirty have you cleaned the carburator out! and you must check the point and spark plug if spark is weak you will get the same response on the throtle this is a classic bike it will have problems!

This is obviously a problem in design of the bike. Weak circuit board design creating a shallow spark or mis-timed spark, OHC timing far too radical, carb design not compatible with the bore of the bike, factory valve angles out of whack, something, or several somethings have converged in this bike. Does your state have a "Lemon Law"? Many states have this and it forces the dealer to refund your money or replace the bike. Contact the KTM Corporate office > > KTM-Sportmotorcycle AG
Stallhofnerstraße 3, A-5230 Mattighofen
Tel. +43 7742/6000-0, Fax. +43 7742/6000-0

you need to have the fuel pressure checked