RE: os .18
Have you tryed to change glow plug?
Also, i would start with all basic settings again and take it from there....
Ive got a .21 VG engine, (im not happy) and after 2 tanks i have had a issue as many other have had.. I can run for 5min then the engine starts messing up and ive got to kill it....
"overheat" ....
"The hard starting" ?
Hard to pull?
Then take out the glow plug.. pull some times.. put the plug back in and try...
You dont wanna take mutch fuel in the carb, then its easy to get the problem..