I have an O.S. .18 in my Speedy Tiger and I haven't been able to start it for 2 months. I melted the clutch and replaced it, now my engine won't start. I put a new glow plug in it, got new fuel (Traxxas 20%, same as before) and my glow ignitor has a guage so I know it's charged. I returned the carb settings to break in settings. The temps where I am are 100-110 F during the day, so it's hot enough. the engine is about 9 months old.