hardstarting after cleaning my fuel injectors

[xhz973]

i had my fuel injectors cleaned a few weeks ago by a certified mechanic and he also cleaned the throttle body with carb cleaner. but after the process i noticed that my car hardstarts when the engine is turned off for an hour or two. But i don't encounter the problem in the morning when i first start the engine. it only happens when i park the car for an hour or more , and then when i start it the problem is there again.
can anyone please help me.
thanks guys!

 

[JDMilan]

starter

 

[NoJokE]

Yea check your starter and stuff, for some reason weird stuff breaks when you fix things unrelated to whatever it is you fixed.

 

[cycloneb18c3]

check distributer cap and rotor