I was riding my 2003 yz125 and it stalled since then i have not been able to kick start the bike i checked the plug and its getting plenty of spark i put a compression tester on it and its reading 150 psi so its not a compression problem i can push start it and it will run fine as long as you are on it but if not it will just stall out what could the problem be?

SOURCE: VERY hard starting takes way to many kicks usually play out befo

There is a proper way to start the engine. Four controls are on your bike to assist in starting.

• The choke, used when the engine is cold. Pull the red knob for choke.
• The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
• The de-compression lever, always used.
• The throttle, used to prime the cylinder.

SOURCE: Thanks for all the tips on this CRF250R Honda but

i dont know what all you have tried so far, but check the fuel filter, usally in the tank above petcock. the compression seems fine as you had to bump start it in third gear. you can feel the compression of a bike when pushing it in gear, like a bike with bad compression you could push in first without wheel locking

Testimonial: " lots of gas , injector cleaner in the gas, spray cleaned up carb in frame,pulled of valve cover cam looks burnt blue in colour lack of oil? valves "

SOURCE: Stalling out, when not completely upright

My 2003 has a cutoff switch on the kickstand.

SOURCE: i have a 1974 dt 250 same as an dt 360 the bike

Compression is too low!

Replace the piston rings.

Also check continuity from engine to frame till high-tension coil...
Check if breaker points aren't dirty ( clean out with fine sandpaper )
Check breakerpoint settings

SOURCE: yz125 spark plug problem

What does removed plug look like??

Is the plug correct for this bike, very important.