Os 18tm
 

I have a Os 18tm in my jato it was idiling very high so i was messing with the screws got done with the second take and wont start wat is the amount of turns out for all three screws

RE: Os 18tm
 

The instruction manual has the rough, initial settings for the carburetor.

http://www.osengines.com/manuals/index.html

RE: Os 18tm
 

Yes, I looked at that its flush and everything but im not 100% sure and it won't start and im on my 2nd take break in

RE: Os 18tm
 

If you have the engine set per the instructions, you have the initial settings correctly-set. If the engine won't start, you'll need to make sure you have a good glow plug, a good glow plug battery, and are not over- or under-priming the engine. If the engine's had a bunch of running, you may have to check the piston/cylinder fit. Hard running with dirt ingestion or an overheat or two can cause a bad piston/liner fit, which means that the engine's compression is shot. You may need to rebuild the engine.