4 different glowplugs ive set it at 2 1/2 turns for both needles...engine came in a box...thats it...no papers or directions or anything....cant find factory settings.. but used the normal 2 1/2 and broke it in... then that wouldnt work the next day like i siad so i looked it up on the forum and someone siad try 3 1/2 on the hsnand that worked great for awhile then the same problem accured agian...changed glowplugs and battery in glow plug igniter new feul from the can instead of my fill bottle and then it would start for a sec. then die and i played with the needles agian...nothing will work...if this engine doesnt work soon im just getting a os 15 or os 18...something ill knowthat works...i just dont have the money 2 buy a new engine everytime i turn around